Klein-Gordon oscillators and Bergman spaces

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  • Alexander D. Popov

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OriginalspracheEnglisch
Aufsatznummer105368
Seitenumfang17
FachzeitschriftJournal of geometry and physics
Jahrgang207
Frühes Online-Datum14 Nov. 2024
PublikationsstatusVeröffentlicht - Jan. 2025

Abstract

We consider classical and quantum dynamics of relativistic oscillator in Minkowski space R3,1. It is shown that for a non-zero frequency parameter ω the covariant phase space of the classical Klein-Gordon oscillator is a homogeneous Kähler-Einstein manifold Z6=AdS7/U(1)=U(3,1)/U(3)×U(1). In the limit ω→0, this manifold is deformed into the covariant phase space TH3 of a free relativistic particle, where H3=H+3∪H3 is a two-sheeted hyperboloid in momentum space. Quantization of this model with ω≠0 leads to the Klein-Gordon oscillator equation which we consider in the Segal-Bargmann representation. It is shown that the general solution of this model is given by functions from the weighted Bergman space of square-integrable holomorphic (for particles) and antiholomorphic (for antiparticles) functions on the Kähler-Einstein manifold Z6. This relativistic model is Lorentz covariant, unitary and does not contain non-physical states.

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Klein-Gordon oscillators and Bergman spaces. / Popov, Alexander D.
in: Journal of geometry and physics, Jahrgang 207, 105368, 01.2025.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Popov AD. Klein-Gordon oscillators and Bergman spaces. Journal of geometry and physics. 2025 Jan;207:105368. Epub 2024 Nov 14. doi: 10.48550/arXiv.2405.14349, 10.1016/j.geomphys.2024.105368
Popov, Alexander D. / Klein-Gordon oscillators and Bergman spaces. in: Journal of geometry and physics. 2025 ; Jahrgang 207.
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