Thomas Barthel | Scholars@Duke

Thomas Barthel
Charles H. Townes Assistant Professor of Physics

Theoretical and Numerical Quantum Many-Body Physics

Current Research Interests

• Strongly correlated quantum many-particle systems
• Nonequilibrium phenomena, open quantum systems, and transport
• Information theoretic aspects like entanglement
• Integrable models
• Tensor network state methods (DMRG, MPS, MERA, PEPS)
• Quantum computation and simulation for the investigation of quantum matter
• Ultracold atoms in optical lattices
• Stochastic dynamics in networks

Current Appointments & Affiliations

Charles H. Townes Assistant Professor of Physics, Physics, Trinity College of Arts & Sciences 2015
Assistant Professor in the Department of Physics, Physics, Trinity College of Arts & Sciences 2015

Contact Information

287 Physics Bldg, Durham, NC 27708
Box 90305, Durham, NC 27708-0305
barthel@phy.duke.edu (919) 660-2965
barthel.phy.duke.edu
www.manyparticle.org/~barthel

Background
Education, Training, & Certifications
- Ph.D., Rheinisch-Westfalische Technische Hochshule Aachen (Germany) 2009
Research
Selected Grants
- Quantum Computing in Chemical and Material Sciences awarded by Department of Energy 2018 - 2021
Fellowships, Supported Research, & Other Grants
- Start-up grant awarded by Duke University 2015
- Graduate studies scholarship awarded by German National Merit Foundation 2006
- Scholarship awarded by German National Merit Foundation 2000
Publications & Artistic Works
Selected Publications
- Academic Articles
  - Binder, Moritz, and Thomas Barthel. “Infinite boundary conditions for response functions and limit cycles within the infinite-system density matrix renormalization group approach demonstrated for bilinear-biquadratic spin-1 chains.” Physical Review B 98, no. 23 (December 7, 2018). https://doi.org/10.1103/physrevb.98.235114.
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  - Barthel, T., and J. Lu. “Fundamental Limitations for Measurements in Quantum Many-Body Systems.” Physical Review Letters 121, no. 8 (August 24, 2018). https://doi.org/10.1103/PhysRevLett.121.080406.
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  - Barthel, Thomas, Caterina De Bacco, and Silvio Franz. “Matrix product algorithm for stochastic dynamics on networks applied to nonequilibrium Glauber dynamics..” Physical Review. E 97, no. 1–1 (January 2018). https://doi.org/10.1103/physreve.97.010104.
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  - Schlittler, T, Thomas, Thomas Mosseri, R, and T. Barthel. “Phase diagram of the hexagonal lattice quantum dimer model: Order parameters, ground-state energy, and gaps.” Phys. Rev. B 96 (November 21, 2017): 195142–195142. https://doi.org/10.1103/PhysRevB.96.195142.
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  - Binder, M., and T. Barthel. “Symmetric minimally entangled typical thermal states for canonical and grand-canonical ensembles.” Physical Review B 95, no. 19 (May 22, 2017). https://doi.org/10.1103/PhysRevB.95.195148.
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  - Barthel, T. “Matrix product purifications for canonical ensembles and quantum number distributions.” Physical Review B 94, no. 11 (September 26, 2016). https://doi.org/10.1103/PhysRevB.94.115157.
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  - Gori, L., T. Barthel, A. Kumar, E. Lucioni, L. Tanzi, M. Inguscio, G. Modugno, T. Giamarchi, C. D’Errico, and G. Roux. “Finite-temperature effects on interacting bosonic one-dimensional systems in disordered lattices.” Physical Review A 93, no. 3 (March 29, 2016). https://doi.org/10.1103/PhysRevA.93.033650.
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  - Schlittler, Thiago, Thomas Barthel, Grégoire Misguich, Julien Vidal, and Rémy Mosseri. “Phase Diagram of an Extended Quantum Dimer Model on the Hexagonal Lattice..” Physical Review Letters 115, no. 21 (November 18, 2015). https://doi.org/10.1103/physrevlett.115.217202.
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  - Binder, M., and T. Barthel. “Minimally entangled typical thermal states versus matrix product purifications for the simulation of equilibrium states and time evolution.” Physical Review B Condensed Matter and Materials Physics 92, no. 12 (September 10, 2015). https://doi.org/10.1103/PhysRevB.92.125119.
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  - Mölter, J., T. Barthel, U. Schollwöck, and V. Alba. “Bound states and entanglement in the excited states of quantum spin chains.” Journal of Statistical Mechanics: Theory and Experiment 2014, no. 10 (October 1, 2014). https://doi.org/10.1088/1742-5468/2014/10/P10029.
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  - Halimeh, J. C., A. Wöllert, I. McCulloch, U. Schollwöck, and T. Barthel. “Domain-wall melting in ultracold-boson systems with hole and spin-flip defects.” Physical Review a Atomic, Molecular, and Optical Physics 89, no. 6 (June 4, 2014). https://doi.org/10.1103/PhysRevA.89.063603.
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  - Cai, Z., and T. Barthel. “Algebraic versus exponential decoherence in dissipative many-particle systems.” Physical Review Letters 111, no. 15 (October 11, 2013). https://doi.org/10.1103/PhysRevLett.111.150403.
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  - Lake, B., D. A. Tennant, J. S. Caux, T. Barthel, U. Schollwöck, S. E. Nagler, and C. D. Frost. “Multispinon continua at zero and finite temperature in a near-ideal heisenberg Chain.” Physical Review Letters 111, no. 13 (September 26, 2013). https://doi.org/10.1103/PhysRevLett.111.137205.
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  - Barthel, T. “Precise evaluation of thermal response functions by optimized density matrix renormalization group schemes.” New Journal of Physics 15 (July 1, 2013). https://doi.org/10.1088/1367-2630/15/7/073010.
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  - Kliesch, M., T. Barthel, C. Gogolin, M. Kastoryano, and J. Eisert. “Erratum: Dissipative quantum church-turing theorem (Physical Review Letters (2011) 107 (120501)).” Physical Review Letters 109, no. 11 (September 13, 2012). https://doi.org/10.1103/PhysRevLett.109.119904.
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  - Barthel, T., and M. Kliesch. “Quasilocality and efficient simulation of Markovian quantum dynamics.” Physical Review Letters 108, no. 23 (June 5, 2012). https://doi.org/10.1103/PhysRevLett.108.230504.
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  - Barthel, T., and R. Hübener. “Solving condensed-matter ground-state problems by semidefinite relaxations.” Physical Review Letters 108, no. 20 (May 17, 2012). https://doi.org/10.1103/PhysRevLett.108.200404.
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  - Kliesch, M., T. Barthel, C. Gogolin, M. Kastoryano, and J. Eisert. “Dissipative quantum Church-Turing theorem.” Physical Review Letters 107, no. 12 (September 12, 2011). https://doi.org/10.1103/PhysRevLett.107.120501.
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  - Barthel, T., M. Kliesch, and J. Eisert. “Real-space renormalization yields finite correlations.” Physical Review Letters 105, no. 1 (July 2, 2010). https://doi.org/10.1103/PhysRevLett.105.010502.
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  - Pineda, C., T. Barthel, and J. Eisert. “Unitary circuits for strongly correlated fermions.” Physical Review a Atomic, Molecular, and Optical Physics 81, no. 5 (May 28, 2010). https://doi.org/10.1103/PhysRevA.81.050303.
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  - Barthel, T., C. Pineda, and J. Eisert. “Contraction of fermionic operator circuits and the simulation of strongly correlated fermions.” Physical Review a Atomic, Molecular, and Optical Physics 80, no. 4 (October 30, 2009). https://doi.org/10.1103/PhysRevA.80.042333.
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  - Barthel, T., U. Schollwöck, and S. R. White. “Spectral functions in one-dimensional quantum systems at finite temperature using the density matrix renormalization group.” Physical Review B Condensed Matter and Materials Physics 79, no. 24 (June 1, 2009). https://doi.org/10.1103/PhysRevB.79.245101.
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  - Barthel, T., C. Kasztelan, I. P. McCulloch, and U. Schollwöck. “Magnetism, coherent many-particle dynamics, and relaxation with ultracold bosons in optical superlattices.” Physical Review a Atomic, Molecular, and Optical Physics 79, no. 5 (May 1, 2009). https://doi.org/10.1103/PhysRevA.79.053627.
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  - Roux, G., T. Barthel, I. P. McCulloch, C. Kollath, U. Schollwöck, and T. Giamarchi. “Quasiperiodic Bose-Hubbard model and localization in one-dimensional cold atomic gases.” Physical Review a Atomic, Molecular, and Optical Physics 78, no. 2 (August 22, 2008). https://doi.org/10.1103/PhysRevA.78.023628.
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  - Barthel, T., and U. Schollwöck. “Dephasing and the steady state in quantum many-particle systems.” Physical Review Letters 100, no. 10 (March 12, 2008). https://doi.org/10.1103/PhysRevLett.100.100601.
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  - Vidal, J., S. Dusuel, and T. Barthel. “Entanglement entropy in collective models.” Journal of Statistical Mechanics: Theory and Experiment, no. 1 (January 1, 2007). https://doi.org/10.1088/1742-5468/2007/01/P01015.
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  - Zhou, H. Q., T. Barthel, J. O. Fjærestad, and U. Schollwöck. “Entanglement and boundary critical phenomena.” Physical Review a Atomic, Molecular, and Optical Physics 74, no. 5 (November 27, 2006). https://doi.org/10.1103/PhysRevA.74.050305.
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  - Barthel, T., M. C. Chung, and U. Schollwöck. “Entanglement scaling in critical two-dimensional fermionic and bosonic systems.” Physical Review a Atomic, Molecular, and Optical Physics 74, no. 2 (September 20, 2006). https://doi.org/10.1103/PhysRevA.74.022329.
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  - Barthel, T., S. Dusuel, and J. Vidal. “Entanglement entropy beyond the free case.” Physical Review Letters 97, no. 22 (January 1, 2006). https://doi.org/10.1103/PhysRevLett.97.220402.
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Education, Training, & Certifications

Selected Grants

Fellowships, Supported Research, & Other Grants

Selected Publications

Academic Articles

Recent Courses

Presentations & Appearances