Shailesh Chandrasekharan
Professor of Physics
Prof. Chandrasekharan is interested in understanding quantum field theories non-perturbatively from first principles calculations. His research focuses on lattice formulations with emphasis on strongly correlated fermionic systems of interest in condensed matter, particle and nuclear physics. He develops novel Monte-Carlo algorithms to study these problems. He is particularly excited about solutions to the notoriously difficult sign problem
that haunts quantum systems containing fermions and gauge fields. He recently proposed an idea called the fermion bag approach
, using which he has been able to solve numerous sign problems that seemed unsolvable earlier. Using various algorithmic advances over the past decade, he is interested in understanding the properties of quantum critical points containing interacting fermions. Some of his recent publications can be found here
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Current Research Interests
I am interested in strongly correlated quantum phenomena that arise naturally in nuclei, dense nuclear systems, quantum anti-ferromagnets, high Tc materials etc. I develop novel quantum Monte Carlo techniques to solve simplified microscopic lattice models that are expected to capture the important physics in these physical phenomena. I am particularly fascinated by quantum critical phenomena that can occur in such models where the details of the microscopic models are no longer important and the answers one gets are universal and more broadly applicable. My goal is to compute these universal properties without approximations where possible. One of my expertise is in the area of solving sign problems that hinder Monte Carlo methods when applied to such systems.
Current Appointments & Affiliations
- Professor of Physics, Physics, Trinity College of Arts & Sciences 2018
Contact Information
- Box 90305, Durham, NC 27708-0305
- Science Drive, 253, Physics/Math Bldg., Durham, NC 27708
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(919) 660-2462
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http://www.phy.duke.edu/~sch/
- Background
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Education, Training, & Certifications
- Ph.D., Columbia University 1996
- M.Phil., Columbia University 1994
- M.A., Columbia University 1992
- B.S.E.E., Indian Institute of Technology (India) 1989
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Duke Appointment History
- Associate Professor of Physics, Physics, Trinity College of Arts & Sciences 2005 - 2018
- Director of Graduate Studies in the Department of Physics, Physics, Trinity College of Arts & Sciences 2011 - 2014
- Assistant Professor of Physics, Physics, Trinity College of Arts & Sciences 1998 - 2004
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Leadership & Clinical Positions at Duke
- Chair, Executive Committee of Graduate Faculty, from July 2014 to June 2015
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Academic Positions Outside Duke
- Visiting Scientist, Indian Institute of Science, Bangalore India. 2016
- Visiting Professor, Tata Institute for Fundamental Research, Bombay India. 2009
- Visiting Professor, Bern University, Bern Switzerland. 2007
- Visiting Professor, Bern University, Bern Switzerland. 2002
- Recognition
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In the News
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MAY 31, 2015 News Letter of the Open Science Grid -
APR 1, 2014 Duke Research Blog
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Awards & Honors
- Expertise
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Subject Headings
- Research
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Selected Grants
- Lattice and Effective Field Theory Studies of Quantum Chromodynamics awarded by Department of Energy 2005 - 2020
- Coherence and Correlations in Electronic Nanostructures awarded by National Science Foundation 2005 - 2009
- Coherence and Correlation in Electronic Nanostructures awarded by National Science Foundation 2001 - 2006
- Toward the Chiral Limit in QCD awarded by Department of Energy 2003 - 2005
- Quantum Chromodynamics and Nuclear Physics at Extreme Energy Density awarded by Department of Energy 1995 - 2005
- Publications & Artistic Works
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Selected Publications
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Academic Articles
- Banerjee, D, Chandrasekharan, S, and Orlando, D. "Conformal Dimensions via Large Charge Expansion." Physical Review Letters 120, no. 6 (February 2018): 061603-null. Full Text
- Ayyar, V, and Chandrasekharan, S. "Generating a nonperturbative mass gap using Feynman diagrams in an asymptotically free theory." Physical Review D 96, no. 11 (December 1, 2017). Full Text
- Huffman, E, and Chandrasekharan, S. "Fermion bag approach to Hamiltonian lattice field theories in continuous time." Physical Review D 96, no. 11 (December 1, 2017). Full Text
- Hann, CT, Huffman, E, and Chandrasekharan, S. "Solution to the sign problem in a frustrated quantum impurity model." Annals of Physics 376 (January 2017): 63-75. Full Text
- Huffman, E, and Chandrasekharan, S. "Solution to sign problems in models of interacting fermions and quantum spins." Physical review. E 94, no. 4-1 (October 19, 2016): 043311-. Full Text
- Ayyar, V, and Chandrasekharan, S. "Fermion masses through four-fermion condensates." Journal of High Energy Physics 2016, no. 10 (October 1, 2016). Full Text
- Huffman, E, Banerjee, D, Chandrasekharan, S, and Wiese, UJ. "Real-time evolution of strongly coupled fermions driven by dissipation." Annals of Physics 372 (September 1, 2016): 309-319. Full Text
- Ayyar, V, and Chandrasekharan, S. "Origin of fermion masses without spontaneous symmetry breaking." Physical Review D 93, no. 8 (April 20, 2016). Full Text
- Ayyar, V, and Chandrasekharan, S. "Massive fermions without fermion bilinear condensates." Physical Review D Particles, Fields, Gravitation and Cosmology 91, no. 6 (March 30, 2015). Full Text
- Zou, H, Liu, Y, Lai, CY, Unmuth-Yockey, J, Yang, LP, Bazavov, A, Xie, ZY, Xiang, T, Chandrasekharan, S, Tsai, SW, and Meurice, Y. "Progress towards quantum simulating the classical O(2) model." Physical Review a Atomic, Molecular, and Optical Physics 90, no. 6 (December 1, 2014). Full Text
- Huffman, EF, and Chandrasekharan, S. "Solution to sign problems in half-filled spin-polarized electronic systems." Physical Review B Condensed Matter and Materials Physics 89, no. 11 (March 12, 2014). Full Text
- Chandrasekharan, S. "Fermion bags and a new origin for a fermion mass." Proceedings of Science Part F130500 (January 1, 2014). Open Access Copy
- Chandrasekharan, S, and Li, A. "Quantum critical behavior in three dimensional lattice Gross-Neveu models." Physical Review D Particles, Fields, Gravitation and Cosmology 88, no. 2 (July 31, 2013). Full Text
- Chandrasekharan, S. "Fermion bag approach to fermion sign problems." The European Physical Journal A 49, no. 7 (July 2013). Full Text
- Chandrasekharan Shailesh, . "Fermion Bag Solutions to Sign Problems." Proceedings of Science Lattice2012 (December 2012): 224-. (Academic Article)
- Chandrasekharan, S. "Solutions to sign problems in lattice Yukawa models." Physical Review D Particles, Fields, Gravitation and Cosmology 86, no. 2 (July 3, 2012). Full Text
- Chandrasekharan, S, and Li, A. "Fermion bag solutions to some sign problems in four-fermion field theories." Physical Review D Particles, Fields, Gravitation and Cosmology 85, no. 9 (May 22, 2012). Full Text
- Chandrasekharan, S, and Li, A. "Fermion bags, duality, and the three dimensional massless lattice thirring model." Phys Rev Lett 108, no. 14 (April 6, 2012): 140404-. Full Text Link to Item
- Chandrasekharan, S, and Li, A. "Fermion bag approach to the sign problem in strongly coupled lattice QED with Wilson fermions." Journal of High Energy Physics 2011, no. 1 (September 29, 2011). Full Text
- Chandrasekharan, S, and Li, A. "The generalized fermion-bag approach." Proceedings of Science 139 (January 1, 2011).
- Chandrasekharan, S, and Li, A. "Anomaly and a QCD-like phase diagram with massive bosonic baryons." Journal of High Energy Physics 2010, no. 12 (December 22, 2010). Full Text
- Liu, DE, Chandrasekharan, S, and Baranger, HU. "Quantum phase transition and emergent symmetry in a quadruple quantum dot system." Phys Rev Lett 105, no. 25 (December 17, 2010): 256801-. Full Text Link to Item
- Liu, DE, Chandrasekharan, S, and Baranger, HU. "Conductance of quantum impurity models from quantum monte carlo." Physical Review B Condensed Matter and Materials Physics 82, no. 16 (October 28, 2010). Full Text Open Access Copy
- Chandrasekharan, S. "Fermion bag approach to lattice field theories." Physical Review D Particles, Fields, Gravitation and Cosmology 82, no. 2 (July 14, 2010). Full Text Open Access Copy
- Banerjee, D, and Chandrasekharan, S. "Finite size effects in the presence of a chemical potential: A study in the classical nonlinear O(2) sigma model." Physical Review D Particles, Fields, Gravitation and Cosmology 81, no. 12 (June 8, 2010). Full Text Open Access Copy
- Podolsky, D, Chandrasekharan, S, and Vishwanath, A. "Phase transitions of S=1 spinor condensates in an optical lattice." Physical Review B Condensed Matter and Materials Physics 80, no. 21 (December 9, 2009). Full Text Open Access Copy
- Kaul, RK, Ullmo, D, Zaránd, G, Chandrasekharan, S, and Baranger, HU. "Ground state and excitations of quantum dots with magnetic impurities." Physical Review B Condensed Matter and Materials Physics 80, no. 3 (August 6, 2009). Full Text
- Chandrasekharan, S, Jiang, FJ, Pepe, M, and Wiese, UJ. "Rotor spectra, berry phases, and monopole fields: From antiferromagnets to QCD." Physical Review D Particles, Fields, Gravitation and Cosmology 78, no. 7 (October 21, 2008). Full Text
- Cecile, DJ, and Chandrasekharan, S. "Role of the σ resonance in determining the convergence of chiral perturbation theory." Physical Review D Particles, Fields, Gravitation and Cosmology 77, no. 9 (May 5, 2008). Full Text
- Cecile, DJ, and Chandrasekharan, S. "Absence of vortex condensation in a two dimensional fermionic XY model." Physical Review D Particles, Fields, Gravitation and Cosmology 77, no. 5 (March 20, 2008). Full Text
- Jiang, F-J, Nyfeler, M, Chandrasekharan, S, and Wiese, U-J. "From an antiferromagnet to a valence bond solid: evidence for a first-order phase transition." JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT (February 2008). Full Text Link to Item
- Jiang, FJ, Nyfeler, M, Chandrasekharan, S, and Wiese, UJ. "From an antiferromagnet to a valence bond solid: Evidence for a first-order phase transition." Journal of Statistical Mechanics: Theory and Experiment 2008, no. 2 (February 1, 2008). Full Text
- Cecile, DJ, and Chandrasekharan, S. "Modeling pion physics in the -regime of two-flavor QCD using strong coupling lattice QED." Physical Review D Particles, Fields, Gravitation and Cosmology 77, no. 1 (January 17, 2008). Full Text
- Chandrasekharan, S. "A new computational approach to lattice quantum field theories." Proceedings of Science 66 (January 1, 2008).
- Chandrasekharan, S, and Mehta, AC. "Effects of the anomaly on the two-flavor QCD chiral phase transition." Physical Review Letters 99, no. 14 (October 5, 2007): 142004-null. Full Text
- Lee, JW, Chandrasekharan, S, and Baranger, HU. "Disorder-Induced Superfluidity in Hardcore Bosons in Two Dimensions(Submitted)." Phys. Rev. B (2007). (Academic Article) Link to Item
- Podolsky, D, Berkeley, UC, Chandrasekharan, S, Vishwanath, A, Berkeley, UC, and Berkeley, LBL. "Novel transitions in S=1 spinor condensates and XY Ashkin-Teller universality." arXiv:0707.0695 [cond-mat.stat-mech] (2007). (Academic Article)
- Chandrasekharan, S. "Anomalous superfluidity in (2+1)-dimensional two-color lattice QCD." Phys Rev Lett 97, no. 18 (November 3, 2006): 182001-. Full Text Link to Item
- Priyadarshee, A, Chandrasekharan, S, Lee, J-W, and Baranger, HU. "Quantum phase transitions of hard-core bosons in background potentials." Phys Rev Lett 97, no. 11 (September 15, 2006): 115703-. Full Text Link to Item
- Chandrasekharan, S, and Jiang, FJ. "Phase diagram of two-color lattice QCD in the chiral limit." Physical Review D Particles, Fields, Gravitation and Cosmology 74, no. 1 (July 14, 2006). Full Text
- Kaul, RK, Zaránd, G, Chandrasekharan, S, Ullmo, D, and Baranger, HU. "Spectroscopy of the Kondo problem in a box." Phys Rev Lett 96, no. 17 (May 5, 2006): 176802-. Full Text Link to Item
- Chandrasekharan, S, and Mehta, AC. "Effects of the anomaly on the QCD chiral phase transition." Proceedings of Science 32 (January 1, 2006).
- Chandrasekharan, S. "New approaches to strong coupling lattice QCD." Int. J. Mod. Phys. B20 (2006): 2714-2723. (Academic Article)
- Yoo, J, Chandrasekharan, S, Kaul, RK, Ullmo, D, and Baranger, HU. "On the sign problem in the Hirsch-Fye algorithm for impurity problems." Journal of Physics A: Mathematical and General 38, no. 48 (December 2, 2005): 10307-10310. Full Text
- Kaul, RK, Ullmo, D, Chandrasekharan, S, and Baranger, HU. "Mesoscopic Kondo problem." Europhysics Letters 71, no. 6 (September 15, 2005): 973-979. Full Text
- Lee, JW, Chandrasekharan, S, and Baranger, HU. "Quantum Monte Carlo study of disordered fermions." Physical Review B Condensed Matter and Materials Physics 72, no. 2 (July 1, 2005). Full Text
- Yoo, J, Chandrasekharan, S, and Baranger, HU. "Multilevel algorithm for quantum-impurity models." Phys Rev E Stat Nonlin Soft Matter Phys 71, no. 3 Pt 2B (March 2005): 036708-. Full Text Link to Item
- Chandrasekharan, S, and Strouthos, CG. "Failure of mean field theory at large N." Phys Rev Lett 94, no. 6 (February 18, 2005): 061601-. Full Text Link to Item
- Chandrasekharan, S, and Jiang, FJ. "Chiral limit of 2-color QCD at strong couplings." Proceedings of Science 20 (January 1, 2005).
- Yoo, J, Chandrasekharan, S, Kaul, RK, Ullmo, D, and Baranger, HU. "Cluster algorithms for quantum impurity models and mesoscopic Kondo physics." Physical Review B Condensed Matter and Materials Physics 71, no. 20 (January 1, 2005). Full Text
- Chandrasekharan, S, and Wiese, UJ. "An introduction to chiral symmetry on the lattice." Progress in Particle and Nuclear Physics 53, no. 2 (October 1, 2004): 373-418. (Review) Full Text
- Brower, R, Chandrasekharan, S, Riederer, S, and Wiese, UJ. "D-theory: Field quantization by dimensional reduction of discrete variables." Nuclear Physics B 693, no. 1-3 (August 16, 2004): 149-175. Full Text
- Chandrasekharan, S, Pepe, M, Steffen, FD, and Wiese, UJ. "Lattice theories with nonlinearly realized chiral symmetry." Nuclear Physics B Proceedings Supplements 129-130 (January 1, 2004): 507-509. Full Text
- Chandrasekharan, S, and Strouthos, CG. "Connecting lattice QCD with chiral perturbation theory at strong coupling." Physical Review D Particles, Fields, Gravitation and Cosmology 69, no. 9 (January 1, 2004): 5-null. Full Text
- Chandrasekharan, S. "Chiral and critical in strong coupling QCD." Nuclear Physics B Proceedings Supplements 129-130 (January 1, 2004): 578-580. Full Text
- Chandrasekharan, S, Cox, J, Osborn, JC, and Wiese, UJ. "Meron-cluster approach to systems of strongly correlated electrons." Nuclear Physics B 673, no. 3 (December 1, 2003): 405-436. Full Text
- Chandrasekharan, S, Pepe, M, Steffen, FD, and Wiese, UJ. "Nonlinear realization of chiral symmetry on the lattice." Journal of High Energy Physics 7, no. 12 (December 1, 2003): 831-863.
- Chandrasekharan, S, and Jiang, FJ. "Chiral limit of strongly coupled lattice QCD at finite temperatures." Physical Review D 68, no. 9 (December 1, 2003). Full Text
- Chandrasekharan, S, and Strouthos, CG. "Kosterlitz-Thouless universality in dimer models." Physical Review D 68, no. 9 (December 1, 2003). Full Text
- Chandrasekharan, S. "Connections between quantum chromodynamics and condensed matter physics." Pramana 61, no. 5 (November 2003): 901-910. Full Text
- Adams, DH, and Chandrasekharan, S. "Chiral limit of strongly coupled lattice gauge theories." Nuclear Physics B 662, no. 1-2 (July 7, 2003): 220-246. Full Text
- Brower, R, Chandrasekharan, S, Negele, JW, and Wiese, UJ. "QCD at fixed topology." Physics Letters, Section B: Nuclear, Elementary Particle and High Energy Physics 560, no. 1-2 (May 8, 2003): 64-74. Full Text
- Brower, R, Chandrasekharan, S, Negele, JW, and Wiese, UJ. "LATTICE QCD AT FIXED TOPOLOGY." Phys. Lett. B 560 (2003): 64-74. (Academic Article)
- Chandrasekharan, S, Pepe, M, Steffen, FD, and Wiese, U-J. "Nonlinear realization of chiral symmetry on the lattice." Journal of High Energy Physics 7, no. 12 (2003): 831-863.
- Chandrasekharan, S. "Chiral limit of staggered fermions at strong couplings: A loop representation." Nuclear Physics B Proceedings Supplements 119 (January 1, 2003): 929-931. Full Text
- Chandrasekharan, S. "Unexpected results in the chiral limit with staggered fermions." Physics Letters, Section B: Nuclear, Elementary Particle and High Energy Physics 536, no. 1-2 (May 30, 2002): 72-78. Full Text
- Brower, R, Chandrasekharan, S, Negele, JW, and Wiese, UJ. "Physical observables from lattice QCD at fixed topology." Nuclear Physics B Proceedings Supplements 106-107 (March 1, 2002): 581-583. Full Text
- Chandrasekharan, S. "Superconductivity and chiral symmetry breaking with fermion clusters." Nuclear Physics B Proceedings Supplements 106-107 (March 1, 2002): 1025-1027. Full Text
- Chandrasekharan, S, Scarlet, B, and Wiese, UJ. "From spin ladders to the 2D O(3) model at non-zero density." Computer Physics Communications 147, no. 1-2 (January 1, 2002): 388-393. Full Text
- Chandrasekharan, S, and Osborn, JC. "Kosterlitz-Thouless universality in a Fermionic system." Physical Review B Condensed Matter and Materials Physics 66, no. 4 (January 1, 2002): 1-5. Full Text
- Chandrasekharan, S, and Osborn, JC. "Kosterlitz-Thouless universality in a fermionic system." Physical Review B - Condensed Matter and Materials Physics 66, no. 4 (2002): 451131-451135.
- Alford, M, Chandrasekharan, S, Cox, J, and Wiese, UJ. "Solution of the complex action problem in the Potts model for dense QCD." Nuclear Physics B 602, no. 1-2 (May 21, 2001): 61-86. Full Text
- Chandrasekharan, S, Chudnovsky, V, Schlittgen, B, and Wiese, UJ. "Flop transitions in cuprate and color superconductors: From SO(5) to SO(10) unification?." Nuclear Physics B Proceedings Supplements 94, no. 1-3 (March 1, 2001): 449-452. Full Text
- Chandrasekharan, S. "QCD at a finite density of static quarks." Nuclear Physics B Proceedings Supplements 94, no. 1-3 (March 1, 2001): 71-78. Full Text
- Chandrasekharan, S, and Osborn, J. "Solving sign problems with meron algorithms." COMPUTER SIMULATION STUDIES IN CONDENSED-MATTER PHYSICS XIII 86 (2001): 28-42. Link to Item
- Chandrasekharan, S, and Osborn, JC. "Critical behavior of a chiral condensate with a meron cluster algorithm." Physics Letters, Section B: Nuclear, Elementary Particle and High Energy Physics 496, no. 1-2 (December 21, 2000): 122-128. Full Text
- Chandrasekharan, S, Cox, J, Holland, K, and Wiese, UJ. "Meron-cluster simulation of a chiral phase transition with staggered fermions." Nuclear Physics B 576, no. 1-3 (June 12, 2000): 481-500. Full Text
- Chandrasekharan, S. "Fermion cluster algorithms." Nuclear Physics B Proceedings Supplements 83-84, no. 1-3 (January 1, 2000): 774-776.
- Brower, R, Chandrasekharan, S, and Wiese, UJ. "QCD as a quantum link model." Physical Review D 60, no. 9 (December 1, 1999).
- Chandrasekharan, S. "Ginsparg-Wilson fermions: A study in the Schwinger model." Physical Review D Particles, Fields, Gravitation and Cosmology 59, no. 9 (March 23, 1999). Full Text
- Bhattacharya, T, Chandrasekharan, S, Gupta, R, Lee, W, and Sharpe, S. "Non-perturbative renormalization constants using Ward identities." Nuclear Physics B Proceedings Supplements 73, no. 1-3 (January 1, 1999): 276-278. Full Text
- Bhattacharya, T, Chandrasekharan, S, Gupta, R, Lee, W, and Sharpe, S. "Non-perturbative renormalization constants using Ward identities1." Physics Letters, Section B: Nuclear, Elementary Particle and High Energy Physics 461, no. 1-2 (January 1, 1999): 79-88. Full Text
- Brower, R, Chandrasekharan, S, and Wiese, U-J. "QCD as a quantum link model." Physical Review D 60, no. 9 (1999): DUMMY42-.
- Brower, R. "QCD as a quantum link model." Physical Review D Particles, Fields, Gravitation and Cosmology 60, no. 9 (January 1, 1999). Full Text
- Chandrasekharan, S, Chen, D, Christ, N, Lee, W, Mawhinney, R, and Vranas, P. "Anomalous chiral symmetry breaking above the QCD phase transition." Physical Review Letters 82, no. 12 (January 1, 1999): 2463-2466. Full Text
- Chandrasekharan, S, and Wiese, UJ. "Meron-cluster solution of fermion sign problems." Physical Review Letters 83, no. 15 (January 1, 1999): 3116-3119. Full Text
- Chandrasekharan, S. "Lattice QCD with Ginsparg-Wilson fermions." Physical Review D Particles, Fields, Gravitation and Cosmology 60, no. 7 (January 1, 1999). Full Text
- Chandrasekharan, S. "Confinement, chiral symmetry breaking and continuum limits in quantum link models." Nuclear Physics B Proceedings Supplements 73, no. 1-3 (January 1, 1999): 739-741. Full Text
- Chandrasekharan, S. "Lattice QCD with Ginsparg-Wilson fermions." Physical Review D - Particles, Fields, Gravitation and Cosmology 60, no. 7 (1999): 1-6.
- Chandrasekharan, S. "Ginsparg-Wilson fermions: A study in the Schwinger model." Physical Review D - Particles, Fields, Gravitation and Cosmology 59, no. 9 (1999): 1-8.
- Brower, R, Chandrasekharan, S, and Wiese, UJ. "Green's functions from quantum cluster algorithms." Physica A: Statistical Mechanics and Its Applications 261, no. 3-4 (December 15, 1998): 520-533. Full Text
- Beard, BB, Brower, RC, Chandrasekharan, S, Chen, D, Tsapalis, A, and Wiese, UJ. "D-theory: Field theory via dimensional reduction of discrete variables." Nuclear Physics B Proceedings Supplements 63, no. 1-3 (January 1, 1998): 775-789. Full Text
- Brower, R, Chandrasekharan, S, and Wiese, U-J. "Green’s functions from quantum cluster algorithms11This work is supported in part by funds provided by the US Department of Energy (DOE) under cooperative research agreement DE-FC02-94ER40818." 261, no. 3 (1998): 520-533.
- Orginos, K, Bietenholz, W, Brower, R, Chandrasekharan, S, and Wiese, UJ. "The perfect Quark-Gluon vertex function." Nuclear Physics B Proceedings Supplements 63, no. 1-3 (January 1, 1998): 904-906. Full Text
- Chandrasekharan, S, and Wiese, UJ. "Quantum link models: A discrete approach to gauge theories." Nuclear Physics B 492, no. 1-2 (May 12, 1997): 455-471. Full Text
- Bietenholz, W, Brower, R, Chandrasekharan, S, and Wiese, UJ. "Progress on perfect lattice actions for QCD." Nuclear Physics B Proceedings Supplements 53, no. 1-3 (January 1, 1997): 921-934. Full Text
- Chandrasekharan, S, and Huang, S. "Z3 twisted chiral condensates in QCD at finite temperatures." Phys Rev D Part Fields 53, no. 9 (May 1, 1996): 5100-5104. Link to Item
- Chandrasekharan, S, and Christ, N. "Dirac spectrum, axial anomaly and the QCD chiral phase transition." Nuclear Physics B Proceedings Supplements 47, no. 1-3 (January 1, 1996): 527-534. Full Text
- Chandrasekharan, S, and Huang, S. "Z3 twisted chiral condensates in QCD at finite temperatures." Physical Review D - Particles, Fields, Gravitation and Cosmology 53, no. 9 (1996): 5100-5104.
- Chandrasekharan, S. "Critical behavior of the chiral condensate at the QCD phase transition." Nuclear Physics B (Proceedings Supplements) 42, no. 1-3 (January 1, 1995): 475-477. Full Text
- Chandrasekharan, S. "Anomaly cancellation in 2+1 dimensions in the presence of a domain wall mass." Phys Rev D Part Fields 49, no. 4 (February 15, 1994): 1980-1987. Link to Item
- Chandrasekharan, S. "Fermions with a domain-wall mass: explicit greens function and anomaly cancellation." Nuclear Physics B (Proceedings Supplements) 34, no. C (January 1, 1994): 579-582. Full Text
- Ayyar, V, Chandrasekharan, S, and Rantaharju, J. "Benchmark results in the 2D lattice Thirring model with a chemical potential(Published online)." Physical Review D 97, no. 5. Full Text
- Bietenholz, W, Brower, R, Chandrasekharan, S, and Wiese, UJ. "Perfect lattice topology: The quantum rotor as a test case." Physics Letters, Section B: Nuclear, Elementary Particle and High Energy Physics 407, no. 3-4 (September 4, 1997): 283-289. Full Text
- Bietenholz, W, Brower, R, Chandrasekharan, S, and Wiese, UJ. "Perfect lattice actions for staggered fermions." Nuclear Physics B 495, no. 1-2 (June 23, 1997): 285-305. Full Text
- Cecile, DJ, and Chandrasekharan, S. "Sigma-resonance and convergence of chiral perturbation theory." PoS LATTICE 2008: 071-. Link to Item
- Chandrasekharan, S, Scarlet, B, and Wiese, U-J. "Meron-Cluster Simulation of Quantum Spin Ladders in a Magnetic Field." Link to Item
- Chandrasekharan, S, and Wiese, U-J. "SO(10) Unification of Color Superconductivity and Chiral Symmetry Breaking?." Link to Item
- Chandrasekharan, S, and Wiese, U-J. "Partition Functions of Strongly Correlated Electron Systems as "Fermionants"." Link to Item
- Chandrasekharan, S. "A Chiral Phase Transition using a Fermion Cluster Algorithm." Chin.J.Phys. 38: 696-706. Link to Item
- Chandrasekharan, S. "A large N chiral transition on a plaquette." Physics Letters, Section B: Nuclear, Elementary Particle and High Energy Physics 395, no. 1-2 (March 6, 1997): 83-88. Full Text
- Chandrasekharan, S. "Novel Quantum Monte Carlo Algorithms for Fermions." Link to Item
- Huffman, E, and Chandrasekharan, S. "Solution to new sign problems with Hamiltonian Lattice Fermions." PoS (LATTICE 2014) 058 . Open Access Copy Link to Item
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Conference Papers
- Ayyar, V, and Chandrasekharan, S. "Generating a mass gap using Feynman diagrams in an asymptotically free theory." March 26, 2018. Full Text
- Chandrasekharan, S. "Fermion bags, topology and index theorems." January 1, 2016.
- Chandrasekharan, S. "Quantum critical behavior with massless staggered fermions in three dimensions." January 1, 2013.
- Cecile, DJ, and Chandrasekharan, S. "-Resonance and convergence of chiral perturbation theory." January 1, 2008.
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- Teaching & Mentoring
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Recent Courses
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Advising & Mentoring
- I am currently advising a graduate student Emilie Huffman who is expected to defend her PhD degree before April 2017. I am also co-advising another graduate student Hersh Singh. I am also mentoring an undergraduate German exchange student Jernej Frank.
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Teaching Activities
- In the last three years I have taught courses that span graduate, advanced undergraduate and freshman level courses. Over the last year I have taught two core graduate level courses, quantum mechanics in the spring of 2017 and statistical mechanics in the fall of 2017. I will be teaching graduate level quantum field theory in the spring 2018. I am also teaching a research course for an undergraduate German exchange student. It mainly focuses on introducing the student to the physics of strongly correlated fermion systems and teaches the necessary background to perform Monte Carlo calculations to solve it.
- Scholarly, Clinical, & Service Activities
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Presentations & Appearances
- Fermion Bag Approach to Fermion Sign Problems. December 21, 2013 2013
- New approaches to finite density lattice field theory. December 20, 2013 2013
- Lattice 2012. December 14, 2012 2012
- New approaches to Strongly Correlated Fermions. November 30, 2012 2012
- Fermion Bag Approach to Lattice Field Theories. October 15, 2012 2012
- Fermion-Bag solutions to Sign Problems. September 21, 2012 2012
- Fermion-Bag solutions to some unsolved sign problems. August 1, 2012 2012
- Fermion Bag Approach to Sign Problems. July 18, 2012 2012
- Solutions to some unsolved sign problems in strongly correlated lattice fermion systems. July 17, 2012 2012
- Solutions to some unsolved sign problems in strongly correlated lattice fermion systems. July 11, 2012 2012
- New solutions to some old sign problems. June 5, 2012 2012
- Fermion-bag approach to four-fermion lattice field theories. June 28, 2011 2011
- Generalized Fermion-bag approach to four-fermion lattice field theories. June 3, 2011 2011
- Fermion bag approach to four-fermion lattice field theories. May 30, 2011 2011
- Fermion bag approach to four-fermion lattice field theories. May 27, 2011 2011
- World Line approach to Lattice Fermions. May 26, 2011 2011
- The Fermion Bag Approach. February 2, 2011 2011
- Quantum Mechanics and the Computational Challenge for the 21st Century. January 24, 2011 2011
- Anomaly and the QCD Critical Point : A study in a strongly correlated system. July 4, 2010 2010
- Quantum Mechanics and the Computational Challenges for the 21st Century. June 30, 2009 2009
- Sigma-Resonance and Chiral Perturbation Theory. May 7, 2009 2009
- World-line approach to lattice field theories. May 6, 2009 2009
- World-line approach to sign problems. March 4, 2009 2009
- World-line approach to lattice field theories. February 26, 2009 2009
- World-line approach to lattice field theories. February 23, 2009 2009
- Sigma-resonance and convergence of chiral perturbation theory. January 13, 2009 2009
- A new approach to computational quantum field theory. December 12, 2008 2008
- APS March Meeting. December 12, 2008 2008
- Fun with four fermion models. December 12, 2008 2008
- Fun with four-fermion Models. December 12, 2008 2008
- LATTICE 2008. December 12, 2008 2008
- Monte Carlo Methods in Lattice Field Theories. December 12, 2008 2008
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Service to the Profession
- Co-Chair, Organizing Committee. Diagrammatic Mote Carlo methods in Nuclear, Particle and Condensed Matter Physics.. Mainz Institute for Theoretical Physics (MITP).. September 18, 2017 - September 29, 2017 2017
- Chair, Organizing Committee. International Workshop on the Sign Problem in QCD and Beyond. Institute for Nuclear Theory, Seattle WA. March 20, 2017 - March 24, 2017 2017
- Chair, Organizing Committee. Diagrammatic Mote Carlo methods in Nuclear, Particle and Condensed Matter Physics.. ECT* Trento. October 5, 2015 - October 9, 2015 2015
- Organizer. Understanding Strongly Coupled Systems in High Energy and Condensed Matter Physics . Aspen Center for Physics. May 24, 2015 - June 13, 2015 2015
- Referee : Physica A. 2013 2013
- Reviewer for Swiss National Foundation Grant Proposals. December 15, 2012 2012
- Reviewer for FONDECYT (Chile, NSF). November 2012 2012
- Reviewer for European Research Council Grant Proposal. 2011 2011
- Referee : International Journal for Theoretical Physics. 2010 2010
- Co-Chair : ECT* Workshop titled "Sign Problems and Complex Actions". March 2, 2009 2009
- Referee : Journal of Physics. 2009 2009
- Organizers (Thomas Schaefer (chair), Dean Lee and Shailesh Chandrasekharan) : Extreme QCD 2008. December 12, 2008 2008
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Service to Duke
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