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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We analyze the dynamics of entanglement due to decoherence in a system of twoidentical fermions with spin $3/2$ interacting with a global bosonicenvironment. We resort to an appropriate measure of the so-called fermionicentanglement to quantify the fermionic correlations, and compare its dynamicswith that of a pair of distinguishable qubits immersed in the same environment.According to the system's initial state, three types of qualitatively differentdynamics are identified: i) \textit{invariant regime}, corresponding to initialstates that belong to a decoherence free subspace (DFS), which maintaininvariant their entanglement and coherence throughout the evolution; ii)\textit{exponential decay}, corresponding to initial states orthogonal to theDFS, and evolve towards states whose entanglement and coherence decreaseexponentially; iii) \textit{entanglement sudden death}, corresponding toinitial states that have some overlap with the DFS and exhibit a richerdynamics leading, in particular, to the sudden death of the fermionicentanglement, while the coherence decays exponentially. Our analysis offersinsights into the dynamics of entanglement in open systems of identicalparticles, into its comparison with the distinguishable-party case, and intothe existence of decoherence free subspaces and entanglement sudden death inindistinguishable-fermion systems.

Sudden death of entanglement in fermionic systems under collective decoherence