Optimal finite-time heat engines under constrained control
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10454896" target="_blank" >RIV/00216208:11320/22:10454896 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=LN8-m794-n" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=LN8-m794-n</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevResearch.4.043130" target="_blank" >10.1103/PhysRevResearch.4.043130</a>
Alternative languages
Result language
angličtina
Original language name
Optimal finite-time heat engines under constrained control
Original language description
We optimize finite-time stochastic heat engines with a periodically scaled Hamiltonian under experimentally motivated constraints on the bath temperature T and the scaling parameter lambda. We present a general geometric proof that maximum-efficiency protocols for T and lambda are piecewise constant, alternating between the maximum and minimum allowed values. When lambda is restricted to a small range and the system is close to equilibrium at the ends of the isotherms, a similar argument shows that this protocol also maximizes output power. These results are valid for arbitrary dynamics. We illustrate them for an overdamped Brownian heat engine, which can experimentally be realized using optical tweezers with stiffness lambda.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/GC20-02955J" target="_blank" >GC20-02955J: Dynamics and thermodynamics in artificial and natural active systems with delay</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review Research [online]
ISSN
2643-1564
e-ISSN
2643-1564
Volume of the periodical
4
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
043130
UT code for WoS article
000891294600003
EID of the result in the Scopus database
2-s2.0-85144610862