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Open Quantum Systems Decoherence

Dressed-state master equation for two strongly coupled two-level atoms with long-lived entanglement

arXiv
Authors: Artemisa Villalobos-Ramirez, Juan Mauricio Torres

Year

2026

Paper ID

35836

Status

Preprint

Abstract Read

~2 min

Abstract Words

107

Citations

N/A

Abstract

We derive a dressed-state master equation in Lindblad form for two strongly coupled two-level atoms. The resulting decay dynamics are governed by Lindblad operators that couple different dressed states. We show that the eigenvalues and eigenvectors of the Liouvillian can be obtained in a compact form, since each off-diagonal element in the dressed-state basis constitutes an eigenvector. Depending on the interatomic distance and the atomic transition frequency, two distinct time scales emerge. On a short time scale, the system relaxes toward two states, one of which corresponds to a transient, maximally entangled configuration. On a longer time scale, this entangled state gradually decays to the steady state.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2026 reference point for readers tracking recent quantum research.
  • We derive a dressed-state master equation in Lindblad form for two strongly coupled two-level atoms.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2603.22238 [2] arXiv https://arxiv.org/abs/2603.22238 [3] Publisher https://arxiv.org/abs/2603.22238

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