Distributed thermal tasks on many-body systems through a single quantum machine
1 Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier - F-34095 Montpellier, France
2 Institut Universitaire de France - 1 rue Descartes, F-75231 Paris Cedex 05, France
Received: 26 October 2015
Accepted: 19 November 2015
We propose a configuration of a single three-level quantum emitter embedded in a non-equilibrium steady electromagnetic environment, able to stabilize and control the local temperatures of a target system it interacts with, consisting of a collection of coupled two-level systems. The temperatures are induced by dissipative processes only, without the need of further external couplings for each qubit. Moreover, by acting on a set of easily tunable geometric parameters, we demonstrate the possibility to manipulate and tune each qubit temperature independently over a remarkably broad range of values. These findings address one standard problem in quantum-scale thermodynamics, providing a way to induce a desired distribution of temperature among interacting qubits and to protect it from external noise sources.
PACS: 03.65.Yz – Decoherence; open systems; quantum statistical methods / 44.40.+a – Thermal radiation / 05.70.Ln – Nonequilibrium and irreversible thermodynamics
© EPLA, 2015