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Basic properties of a mean field laser equation

Mathematical Physics 2020-06-24 v1 Functional Analysis math.MP Probability Quantum Physics

Abstract

We study the non-linear quantum master equation describing a laser under the mean field approximation. The quantum system is formed by a single mode optical cavity and two level atoms, which interact with reservoirs. Namely, we establish the existence and uniqueness of the regular solution to the non-linear operator equation under consideration, as well as we get a probabilistic representation for this solution in terms of a mean field stochastic Schr\"ondiger equation. To this end, we find a regular solution for the non-autonomous linear quantum master equation in Gorini-Kossakowski-Sudarshan-Lindblad form, and we prove the uniqueness of the solution to the non-autonomous linear adjoint quantum master equation in Gorini-Kossakowski-Sudarshan-Lindblad form. Moreover, we obtain rigorously the Maxwell-Bloch equations from the mean field laser equation.

Cite

@article{arxiv.2006.13001,
  title  = {Basic properties of a mean field laser equation},
  author = {Franco Fagnola and Carlos M. Mora},
  journal= {arXiv preprint arXiv:2006.13001},
  year   = {2020}
}

Comments

arXiv admin note: substantial text overlap with arXiv:1803.00875

R2 v1 2026-06-23T16:33:23.375Z