Selective cooling by impulse perturbations in a simple toy model

Abstract

We show in a simple exactly-solvable toy model that a properly designed impulse perturbation can transiently cool down low-energy degrees of freedom at the expenses of high-energy ones that heat up. The model consists of two infinite-range quantum Ising models, one, the \textit{high-energy} sector, with a transverse field much bigger than the other, the \textit{low-energy} sector. The finite-duration perturbation is a spin-exchange that couples the two Ising models with an oscillating coupling strength. We find a cooling of the low-energy sector that is optimised by the oscillation frequency in resonance with the spin-exchange excitation. After the perturbation is turned off, the Ising model with low transverse field can even develop spontaneous symmetry-breaking d

5 pages, 7 figures

References in corpus (6)

• Electrodynamics of Correlated Electron Materials
• Nonlinear light-matter interaction at terahertz frequencies
• Infinite-range Ising ferromagnet in a time-dependent transverse field: quench and ac dynamics near the quantum critical point
• On quantum mean-field models and their quantum annealing
• Cooling quasiparticles in A${}_3$C${}_{60}$ fullerides by excitonic mid-infrared absorption
• Heat-Bath Algorithmic Cooling with correlated qubit-environment interactions

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• Dynamics of photo-induced ferromagnetism in oxides with orbital degeneracy
• Wetting critical behavior in the quantum Ising model within the framework of Lindblad dissipative dynamics
• Ultrafast metal-to-insulator switching in a strongly correlated system
• Dissipative cooling induced by pulse perturbations
• Nonequilibrium hysteretic phase transitions in periodically light-driven superconductors