English

The Dirac-Moshinsky oscillator coupled to an external field and its connection to quantum optics

Quantum Physics 2026-03-23 v2

Abstract

The Dirac-Moshinsky oscillator is an elegant example of an exactly solvable quantum relativistic model that under certain circumstances can be mapped onto the Jaynes-Cummings model in quantum optics. In this work we show, how to do this in detail. Then we extend it by considering its coupling with an external (isospin) field and find the conditions that maintain solvability. We use this extended system to explore entanglement in relativistic systems and then identify its quantum optical analog: two different atoms interacting with an electromagnetic mode. We show different aspects of entanglement which gain relevance in this last system, which can be used to emulate the former.

Keywords

Cite

@article{arxiv.1010.5229,
  title  = {The Dirac-Moshinsky oscillator coupled to an external field and its connection to quantum optics},
  author = {Juan Mauricio Torres and Emerson Sadurni and Thomas H. Seligman},
  journal= {arXiv preprint arXiv:1010.5229},
  year   = {2026}
}

Comments

To appear in the Proceedings of Symposium Symmetries in Nature in memoriam Marcos Moshinsky. http://www.cicc.unam.mx/activities/2010/SymmetriesInNature/index.html