Floquet-state cooling

Abstract

We demonstrate that a periodically driven quantum system can adopt a quasistationary state which is effectively much colder than a thermal reservoir it is coupled to, in the sense that certain Floquet states of the driven-dissipative system can carry much higher population than the ground state of the corresponding undriven system in thermal equilibrium. This is made possible by a rich Fourier spectrum of the system's Floquet transition matrix elements, the components of which are addressed individually by a suitably peaked reservoir density of states. The effect is expected to be important for driven solid-state systems interacting with a phonon bath predominantly at well-defined frequencies.

15 pages, 3 figures

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Cited by in corpus (8)

• Floquet solitons and dynamics of periodically driven matter waves with negative effective mass
• Floquet engineering the quantum Rabi model in the ultrastrong coupling regime
• Floquet-heating-induced Bose condensation in a scar-like mode of an open driven optical-lattice system
• Binary Bose-Einstein condensates in a disordered time-dependent potential
• Defining a well-ordered Floquet basis by the average energy
• Periodic thermodynamics of a two spin Rabi model
• Dissipative preparation of a Floquet topological insulator in an optical lattice via bath engineering
• Environment-controlled Floquet-state paramagnetism