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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The search for strategies to harness the temperature of quantum systems isone of the main goals in quantum thermodynamics. Here we study the dynamics ofa system made of a pair of quantum harmonic oscillators, represented bysingle-mode cavity fields, interacting with a thermally excited beam ofphaseonium atoms, which act as ancillas. The two cavities are arranged in acascade configuration, so that the second cavity interacts with phaseoniumatoms only after their interaction with the first one. We provide exact closeddynamics of the first cavity for arbitrarily long interaction times. Wehighlight the role played by the characteristic coherence phase of phaseoniumatoms in determining the steady states of the cavity fields as well as that ofthe ancillas. Also, we show how the second cavity follows a non-Markovianevolution due to interactions with the "used" ancillary atoms, that enablesinformation exchange with the first cavity. Adjusting the parameters of thephaseonium atoms, we can determine the final stable temperature reached by thecavities. In this way, the cavities can be heated up as well as cooled down.These results provide useful insights towards the use of different types ofancillas for thermodynamic cycles in cavity QED scenarios.

Heating and cooling processes via phaseonium-driven dynamics of cascade systems