Distributed thermal tasks on many-body systems through a single quantum machine

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 ar...

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Bibliographic Details
Published in:Europhysics letters 2015-11, Vol.112 (4), p.40004-p1-40004-p6, Article 40004
Main Authors: Leggio, Bruno, Doyeux, Pierre, Messina, Riccardo, Antezza, Mauro
Format: Article
Language:English
Subjects:
03.65.Yz
05.70.Ln
44.40.+a
Atomic and Molecular Clusters
Atomic Physics
Collection
Condensed Matter
Control systems
Couplings
Dissipation
Emitters
Joining
Optics
Physics
Quantum Gases
Quantum Physics
Qubits (quantum computing)
Tasks
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Summary: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.
ISSN:0295-5075
1286-4854
DOI:10.1209/0295-5075/112/40004