One-Parameter Gaussian State of Anharmonic Oscillator: Nonlinear Realization of Bogoliubov Transformation

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dc.creatorKim, Jung Kon
dc.creatorKim, Sang Pyo
dc.creatorPark, Kwang-Gi
dc.date1999-02-11
dc.date.accessioned2026-07-07T06:16:11Z
dc.date.available2026-07-07T06:16:11Z
dc.descriptionWe find a one-parameter Gaussian state for an anharmonic oscillator with quadratic and quartic terms, which depends on the energy expectation value. For the weak coupling constant, the Gaussian state is a squeezed state of the vacuum state. However, for the strong coupling constant, the Gaussian state represents a different kind of condensation of bosonic particles through a nonlinear Bogoliubov transformation of the vacuum state.
dc.description8 pages, RevTex, no figures
dc.identifierhttps://arxiv.org/abs/quant-ph/9902047
dc.identifierhttp://arxiv.org/abs/quant-ph/9902047
dc.identifierJ.Korean Phys.Soc. 34 (1999) 473-476
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/93981
dc.subjectQuantum Physics
dc.titleOne-Parameter Gaussian State of Anharmonic Oscillator: Nonlinear Realization of Bogoliubov Transformation
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