English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Real quantum heat engines lack the separation of time and length scales thatis characteristic for classical engines. They must be understood as openquantum systems in non-equilibrium with time-controlled coupling to thermalreservoirs as integral part. Here, we present a systematic approach to describea broad class of engines and protocols beyond conventional weak couplingtreatments starting from a microscopic modeling. For the four stroke Ottoengine the full dynamical range down to low temperatures is explored and thecrucial role of the work associated with the coupling/decoupling to/fromreservoirs in the energy balance is revealed. Quantum correlations turn out tobe instrumental to enhance the efficiency which opens new ways for optimalcontrol techniques.

Out-of-equilibrium operation of a quantum heat engine: The cost of thermal coupling control