Unitary decoupling treatment of a quadratic bimodal CQED model
M. Guccione, M. A. Jivulescu, A. Messina
TL;DR
This paper introduces a decoupling method for a quadratic bimodal CQED model, enabling explicit construction of collective modes to simplify the complex radiation-matter interaction analysis.
Contribution
It presents a novel decoupling approach that constructs collective radiation modes, one of which is quadratically coupled to the atom, enhancing understanding of the CQED system.
Findings
Explicit collective mode construction demonstrated
Decoupling simplifies the analysis of the bimodal CQED model
Discussion of advantages of the decoupling approach
Abstract
We consider a two-photon quantum model of radiation-matter interaction between a single two-level atom and a degenerate bimodal high-Q cavity field. Within this tripartite system the explicit construction of two collective radiation modes, one of which freely evolving and the other one quadratically coupled to the matter subsystem, is reported. Meaning and advantages of such a decoupling treatment are carefully discussed.
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