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 character of evolution of an open quantum system is often encoded in thecorrelation function of the environment or, equivalently, in the spectraldensity function of the interaction. When the environment is heterogeneous,e.g. consists of several independent subenvironments with different spectralfunctions, one of the subenvironments can be considered auxiliary and used tocontrol decoherence of the open quantum system in the remaining part of theenvironment. The control can be realized, for example, by adjusting thecharacter of interaction with the subenvironment via suitable parameters of itsspectral density. We investigate non-Markovian evolution of a two-level system(qubit) under influence of three independent decoherence channels, two of themhave classical nature and originate from interaction with a stochastic field,and the third is a quantum channel formed by interaction with a bosonic bath.By modifying spectral densities of the channels, we study their impact onsteady states of the two-level system, evolution of its density matrix and theequilibrium emission spectrums. Additionally, we investigate the impact of therotation-wave approximation applied to the bath channel on accuracy of theresults.

Non-Markovian dynamics of a two-level system in a bosonic bath and a Gaussian fluctuating environment with finite correlation time