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Stephen W. Teitsworth

Associate Professor of Physics
Physics
Box 90305, Durham, NC 27708-0305
089 Physics Bldg, Durham, NC 27708

Selected Presentations & Appearances


Characterizing irreversibility in noise-driven dynamical systems with stream functions - APS March Meeting · March 14, 2022 - March 18, 2022 National Scientific Meeting American Physical Society, Chicago, IL
Stochastic Dynamics of Far-from-Equilibrium Electronic Transport Systems - SIAM Conference on Applications of Dynamical Systems (DS21) · May 23, 2021 - May 27, 2021 International Meeting or Conference Society for Industrial and Applied Mathematics, Virtual meeting
Metrics of irreversibility in noise-driven dynamical systems - Complexity Seminar Series · November 5, 2019 - November 7, 2019 Lecture Potsdam Institute for Climate Impact Research, Potsdam, GERMANY
Noise-induced dynamics in electronic transport systems - Quantum Cascade Laser Group Seminar · November 1, 2019 Visiting Professorship Lecture Paul-Drude-Institute for Solid State Electronics, Berlin, GERMANY
The surprising role of noise in complex systems: from nanoscale electronic transport to global climate dynamics - Physics Colloquium Series · March 29, 2019 Lecture Appalachian State University, Boone NC

Noise refers to the rapid and unpredictable fluctuations that are present in almost all complex systems. For example, in electronic transport devices, noise arises from the random and highly unpredictable flow of individual electrons as they move through the structures. Historically, noise has been viewed as a nuisance that tends to degrade performance of systems by making them less predictable. However, researchers have recently found surprising ways in which noise may enhance the performance of a complex system. A striking example of such a beneficial effect is the superlattice random number generator in which the noise greatly enhances chaotic electrical current flow. Another important example is provided by climate models that accurately predict weather patterns such as the famous El Niño by treating the forcing of the atmosphere on surface sea temperatures as a set of effective noise terms. In this talk, I will also focus on our recent experimental and theoretical efforts to discover the unexpected behaviors that emerge from the interplay of deterministic and stochastic dynamics in electronic transport systems.

Characterizing irreversibility in noise-driven dynamical systems with stream functions - APS March Meeting · March 14, 2022 - March 18, 2022 National Scientific Meeting American Physical Society, Chicago, IL
Stochastic Dynamics of Far-from-Equilibrium Electronic Transport Systems - SIAM Conference on Applications of Dynamical Systems (DS21) · May 23, 2021 - May 27, 2021 International Meeting or Conference Society for Industrial and Applied Mathematics, Virtual meeting
Metrics of irreversibility in noise-driven dynamical systems - Complexity Seminar Series · November 5, 2019 - November 7, 2019 Lecture Potsdam Institute for Climate Impact Research, Potsdam, GERMANY
Noise-induced dynamics in electronic transport systems - Quantum Cascade Laser Group Seminar · November 1, 2019 Visiting Professorship Lecture Paul-Drude-Institute for Solid State Electronics, Berlin, GERMANY
The surprising role of noise in complex systems: from nanoscale electronic transport to global climate dynamics - Physics Colloquium Series · March 29, 2019 Lecture Appalachian State University, Boone NC

Noise refers to the rapid and unpredictable fluctuations that are present in almost all complex systems. For example, in electronic transport devices, noise arises from the random and highly unpredictable flow of individual electrons as they move through the structures. Historically, noise has been viewed as a nuisance that tends to degrade performance of systems by making them less predictable. However, researchers have recently found surprising ways in which noise may enhance the performance of a complex system. A striking example of such a beneficial effect is the superlattice random number generator in which the noise greatly enhances chaotic electrical current flow. Another important example is provided by climate models that accurately predict weather patterns such as the famous El Niño by treating the forcing of the atmosphere on surface sea temperatures as a set of effective noise terms. In this talk, I will also focus on our recent experimental and theoretical efforts to discover the unexpected behaviors that emerge from the interplay of deterministic and stochastic dynamics in electronic transport systems.

Noise-induced dynamics in far-from-equilibrium electronic transport systems - March General Meeting · March 6, 2019 Invited Talk American Physical Society, Boston MA
Noise-induced switching dynamics of bistable electronic transport systems · June 25, 2013 Lecture University of Bielefeld, Germany
Noise-induced switching dynamics in semiconductor nanostructures · June 18, 2013 Lecture Technical University of Berlin
Measurement of stochastic switching in nonlinear electronic transport systems · June 14, 2011 Lecture Technical Univeristy of Berlin
Electric field domains in semiconductor superlattices · December 7, 2009 Lecture University of Florida
Electric field domains in semiconductor superlattices · November 10, 2009 Lecture Technical University of Vienna

Outreach & Engaged Scholarship


Principal speaker - Information session on Physics Graduate School · March 29, 2019 - March 29, 2019 Event/Organization Administration Appalachian State University , Boone, NC flag North Carolina Held a lunchtime information session with Physics and Math undergraduate students at Appalachian State University concerning the Duke Physics program particular as well as providing suggestions for preparation of applications for Physics graduate programs.
Chair - American Physical Society, Committee on Meetings · December 18, 2008 - July 1, 2010 Other , American Physical Society Other Service to the Community

Service to the Profession


Reviewer and Panlest · December 2022 - January 2023 Committee Service National Science Foundation, virtual
Organizer for two focus sessions on Noise-driven dynamics in far-from-equilibrium systems - APS March 2022 Meeting · March 14, 2022 - March 18, 2022 Event/Organization Administration American Physical Society, Chicago, IL
Co-organizer for minisymposium at international meeting - Novel Noise-Driven Dynamics in Far-From-Equilibrium Systems - SIAM Conference on Applications of Dynamical Systems (DS21) · May 23, 2021 - May 27, 2021 Event/Organization Administration Society for Industrial and Applied Math, virtual

Novel Noise-Driven Dynamics in Far-From-Equilibrium Systems

Referee for several scholarly journals · January 2020 - December 2022 Editorial Activities

Reviewer for manuscripts submitted to journals including Physical Review E, Physical Review Research, Physical Review Letters, Physical Review Applied, and Journal of Applied Physics.

Co-organizer for minisymposium at international meeting - Minisymposium on Novel Noise-Driven Dynamics in Far-from-Equilibrium Systems · May 19, 2019 - May 23, 2019 Event/Organization Administration SIAM (Society for Industrial and Applied Math) Dynamical Systems Meeting 2019, Snowbird, UT

Recently, there has been impressive experimental and theoretical progress concerning the dynamical properties of noise-driven systems that are far-from-equilibrium. These efforts span a broad array of fields including biophysics, condensed and soft matter physics, materials science, climate science, and even the social sciences. This minisymposium will bring together experimentalists and theorists from condensed matter physics and applied mathematics to explore novel dynamical systems methods and experimental techniques that are enhancing the understanding of noise-driven phenomena of current importance and interest. Systems to be treated in this session include biophysical problems such as protein folding and the growth of blood vessels and vascular networks, defect dynamics in low-dimensional crystalline materials, and noise-driven charge transport in electronic systems with novel approaches to applications such as random number generation.

Reviewer and Panlest · December 2022 - January 2023 Committee Service National Science Foundation, virtual
Organizer for two focus sessions on Noise-driven dynamics in far-from-equilibrium systems - APS March 2022 Meeting · March 14, 2022 - March 18, 2022 Event/Organization Administration American Physical Society, Chicago, IL
Co-organizer for minisymposium at international meeting - Novel Noise-Driven Dynamics in Far-From-Equilibrium Systems - SIAM Conference on Applications of Dynamical Systems (DS21) · May 23, 2021 - May 27, 2021 Event/Organization Administration Society for Industrial and Applied Math, virtual

Novel Noise-Driven Dynamics in Far-From-Equilibrium Systems

Referee for several scholarly journals · January 2020 - December 2022 Editorial Activities

Reviewer for manuscripts submitted to journals including Physical Review E, Physical Review Research, Physical Review Letters, Physical Review Applied, and Journal of Applied Physics.

Co-organizer for minisymposium at international meeting - Minisymposium on Novel Noise-Driven Dynamics in Far-from-Equilibrium Systems · May 19, 2019 - May 23, 2019 Event/Organization Administration SIAM (Society for Industrial and Applied Math) Dynamical Systems Meeting 2019, Snowbird, UT

Recently, there has been impressive experimental and theoretical progress concerning the dynamical properties of noise-driven systems that are far-from-equilibrium. These efforts span a broad array of fields including biophysics, condensed and soft matter physics, materials science, climate science, and even the social sciences. This minisymposium will bring together experimentalists and theorists from condensed matter physics and applied mathematics to explore novel dynamical systems methods and experimental techniques that are enhancing the understanding of noise-driven phenomena of current importance and interest. Systems to be treated in this session include biophysical problems such as protein folding and the growth of blood vessels and vascular networks, defect dynamics in low-dimensional crystalline materials, and noise-driven charge transport in electronic systems with novel approaches to applications such as random number generation.

Organizer and Chair, Focus Session “Noise-driven dynamics in far-from-equilibrium systems.” - APS 2019 March Meeting · March 4, 2019 - March 8, 2019 Event/Organization Administration American Physical Society, Boston, MA
NSF SBIR panel on Electronic Materials - Phase II · October 20, 2009 Committee Service
NSF SBIR panel on Electronic Materials - Phase I · August 6, 2009 Committee Service
NSF SBIR Phase I panel - Nanoparticles and Nanocomposites · September 11, 2008 Editorial Activities

Service to Duke


Academic Council (University) · August 2023 - May 2025 Committee Service Duke University
Executive Committee of the Graduate Faculty (University) · September 2021 - June 2023 Committee Service