Generalized energy and time-translation invariance in a driven dissipative system
Author(s)Iadecola, Thomas; Chamon, Claudio; Jackiw, Roman; Pi, So-Young
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Driven condensed matter systems consistently pose substantial challenges to theoretical understanding. Progress in the study of such systems has been achieved using the Floquet formalism, but certain aspects of this approach are not well understood. In this paper, we consider the exceptionally simple case of the rotating Kekulé mass in graphene through the lens of Floquet theory. We show that the fact that this problem is gauge-equivalent to a time-independent problem implies that the “quasienergies” of Floquet theory correspond to a continuous symmetry of the full time-dependent Lagrangian. We use the conserved Noether charge associated with this symmetry to recover notions of equilibrium statistical mechanics.
DepartmentMassachusetts Institute of Technology. Department of Physics
Physical Review B
American Physical Society
Iadecola, Thomas, Claudio Chamon, Roman Jackiw, and So-Young Pi. “Generalized Energy and Time-Translation Invariance in a Driven Dissipative System.” Phys. Rev. B 88, no. 10 (September 2013). ©2013 American Physical Society.
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