TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.18.5.160
TI  - Spin-chain based quantum thermal machines
PY  - 2025/05/16
UR  - https://scipost.org/SciPostPhys.18.5.160
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 18
IS  - 5
SP  - 160
A1  - Centamori, Edoardo Maria
AU  - Campisi, Michele
AU  - Giovannetti, Vittorio
AB  - We study the performance of quantum thermal machines in which the working fluid of the model is represented by a many-body quantum system that is periodically connected with external baths via local couplings. A formal characterization of the limit cycles of the set-up is presented in terms of the mixing properties of the quantum channel that describes the evolution of the fluid over a thermodynamic cycle. For the special case in which the system is a collection of spin $1/2$ particles coupled via magnetization preserving Hamiltonians, a full characterization of the possible operational regimes (i.e., thermal engine, refrigerator, heater and thermal accelerator) is provided: in this context we show in fact that the different regimes only depend upon a limited number of parameters (essentially the ratios of the energy gaps associated with the local Hamiltonians of the parts of the network which are in direct thermal contact with the baths).
ER  -

@Article{10.21468/SciPostPhys.18.5.160,
	title={{Spin-chain based quantum thermal machines}},
	author={Edoardo Maria Centamori and Michele Campisi and Vittorio Giovannetti},
	journal={SciPost Phys.},
	volume={18},
	pages={160},
	year={2025},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.18.5.160},
	url={https://scipost.org/10.21468/SciPostPhys.18.5.160},
}