One-parameter squeezed Gaussian states of a time-dependent harmonic oscillator and the selection rule for vacuum states

DOI10.1088/0305-4470/32/14/012zbMath0943.34024arXivquant-ph/9806096OpenAlexW2033580730MaRDI QIDQ4262479

Jung Kon Kim, Sang Pyo Kim

Publication date: 1999

Published in: Journal of Physics A: Mathematical and General (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/quant-ph/9806096

zbMATH Keywords

de Sitter spacetimeBunch-Davies vacuummassive scalar fieldpositive and negative frequency solutionsenergy expectationone-parameter squeezed Gaussian statestime-independent and time-dependent oscillators

Mathematics Subject Classification ID

Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) (34L40) Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics (81Q05) Nonlinear oscillations and coupled oscillators for ordinary differential equations (34C15)

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