Collective bath coupling lets spin ensembles reach non-thermal steady states whose energy, entropy, and free-energy changes are mitigated or amplified, with entropy production reduced by up to a factor of the ensemble size.
Quantum Statistical Enhancement of the Collective Performance of Multiple Bosonic Engines
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abstract
We consider an ensemble of indistinguishable quantum machines and show that quantum statistical effects can give rise to a genuine quantum enhancement of the collective thermodynamic performance. When multiple indistinguishable bosonic work resources are coupled to an external system, the internal energy change of the external system exhibits an enhancement arising from permutation symmetry in the ensemble, which is absent when the latter consists of distinguishable work resources.
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Thermodynamics from indistinguishability: mitigating and amplifying the effects of the bath
Collective bath coupling lets spin ensembles reach non-thermal steady states whose energy, entropy, and free-energy changes are mitigated or amplified, with entropy production reduced by up to a factor of the ensemble size.