منابع مشابه
Squeezed States and Helmholtz Spectra
The ’classical interpretation’ of the wave function ψ(x) reveals an interesting operational aspect of the Helmholtz spectra. It is shown that the traditional Sturm-Liouville problem contains the simplest key to predict the squeezing effect for charged particle states. PACS number(s): 02.70.Hm, 41.75.-i, 03.65.Ge Preprint CINVESTAV: CIEA-FIS/97-07 ∗Depto. de Matemáticas, ITESM, Campus Estado de ...
متن کاملCoherent States and Squeezed States, Supercoherent States and Supersqueezed States
This article reports on a program to obtain and understand coherent states for general systems. Most recently this has included supersymmetric systems. A byproduct of this work has been studies of squeezed and supersqueezed states. To obtain a physical understanding of these systems has always been a primary goal. In particular, in the work on supersymmetry an attempt to understand the role of ...
متن کاملControl of Squeezed States
In this paper we consider the classical and quantum control of squeezed states of harmonic oscillators. This provides a method for reducing noise below the quantum limit and provides an example of the control of under-actuated systems in the stochastic and quantum context. We consider also the interaction of a squeezed quantum oscillator with an external heat bath.
متن کاملInflation and squeezed quantum states.
The inflationary cosmology is analyzed from the point of view of squeezed quantum states. As noted by Grishchuk and Sidorov, the amplification of quantum fluctuations into macroscopic perturbations which occurs during cosmic inflation is a process of quantum squeezing. We carefully develop the squeezed state formalism and derive the equations that govern the evolution of a gaussian initial stat...
متن کاملThermalization of Squeezed States
We first of all propose a simple definition of a thermal squeezed state. Previous definitions of thermal coherent states and squeezed states[1, 2] have used the thermofield approach of Takahashi and Umezawa[3]. An early paper by Vourdas[4] discusses the superposition of squeezed states with thermal photons; a more recent paper[5] considers only the case of thermal coherent states. An early stud...
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ژورنال
عنوان ژورنال: Physics Letters A
سال: 1998
ISSN: 0375-9601
DOI: 10.1016/s0375-9601(97)00882-7