Add to ORKGWe study a minimal quantum Otto heat engine, where the working medium consists of an interacting few-body system in a harmonic trap. This allows us to consider the interaction strength as an additional tunable parameter during the work strokes. We calculate the figures of merit of this engine as a function of the temperature and show clearly in which parameter regimes the interactions assist in engine performance. We also study the finite time dynamics and the subsequent trade-off between the efficiency and the power, comparing the interaction enhanced cycle with the case where the system remains scale-invariant.Comment: 9 pages, 8 figure
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© CopyrightEPLA, 2016.A quantum heat engine of a specific type is studied. This engine contains a si...
We investigate how the quantum signatures can emerge by modifications to the experimentally demonstr...
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In the quest for high-performance quantum thermal machines, looking for an optimal thermodynamic eff...
We analyze the performance of a quantum Stirling heat engine (QSHE), using a two level system and th...
It is investigated whether non-Markovianity, i.e., the memory effects resulting from the coupling of...
We study quantum Otto thermal machines with a two-spin working system coupled by anisotropic interac...
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A quantum heat engine (QHE) based on the interaction driving of a many-particle working medium is in...
Generalized measurements may allow the control of its back-action on the quantum system by interpola...
In this work, we study the efficiency of charging a quantum battery through optical pumping. The bat...
In a quantum Stirling heat engine, the heat exchanged with two thermal baths is partly utilized for ...
Algebraic methods for solving time dependent Hamiltonians are used to investigate the performance of...
Recent predictions for quantum-mechanical enhancements in the operation of small heat engines have r...
The performance of quantum heat engines is generally based on the analysis of a single cycle. We cha...
© CopyrightEPLA, 2016.A quantum heat engine of a specific type is studied. This engine contains a si...
We investigate how the quantum signatures can emerge by modifications to the experimentally demonstr...
Heat engines usually operate by exchanging heat with thermal baths at different (positive) temperatu...
In the quest for high-performance quantum thermal machines, looking for an optimal thermodynamic eff...
We analyze the performance of a quantum Stirling heat engine (QSHE), using a two level system and th...
It is investigated whether non-Markovianity, i.e., the memory effects resulting from the coupling of...
We study quantum Otto thermal machines with a two-spin working system coupled by anisotropic interac...
We show that a quantum Otto cycle in which the medium, an interacting ultracold gas, is driven betwe...
A quantum heat engine (QHE) based on the interaction driving of a many-particle working medium is in...
Generalized measurements may allow the control of its back-action on the quantum system by interpola...
In this work, we study the efficiency of charging a quantum battery through optical pumping. The bat...