scholarly journals Superadiabatic quantum friction suppression in finite-time thermodynamics

2018 ◽  
Vol 4 (4) ◽  
pp. eaar5909 ◽  
Author(s):  
Shujin Deng ◽  
Aurélia Chenu ◽  
Pengpeng Diao ◽  
Fang Li ◽  
Shi Yu ◽  
...  
Keyword(s):  
Finite Time ◽  
Finite Time Thermodynamics ◽  
Quantum Friction

scholarly journals Quantum Finite-Time Thermodynamics: Insight from a Single Qubit Engine

Entropy ◽  
2020 ◽  
Vol 22 (11) ◽  
pp. 1255 ◽  
Author(s):  
Roie Dann ◽  
Ronnie Kosloff ◽  
Peter Salamon
Keyword(s):  
Quantum Theory ◽  
Heat Transport ◽  
First Principles ◽  
Finite Time ◽  
Open Systems ◽  
Finite Time Thermodynamics ◽  
Single Qubit ◽  
Quantum Friction ◽  
External Driving

Incorporating time into thermodynamics allows for addressing the tradeoff between efficiency and power. A qubit engine serves as a toy model in order to study this tradeoff from first principles, based on the quantum theory of open systems. We study the quantum origin of irreversibility, originating from heat transport, quantum friction, and thermalization in the presence of external driving. We construct various finite-time engine cycles that are based on the Otto and Carnot templates. Our analysis highlights the role of coherence and the quantum origin of entropy production.

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