منابع مشابه
marginal behavior of the quantum potential in extended phase space
here, the concept of quantum potential that has been illustrated in extended phase space (eps) in previous works is explored for its marginal behavior. unlike in configuration space, different representations of the quantum mechanics can be found in eps when exploiting appropriate canonical transformations. these canonical transformations revealed that there exist several representations in whi...
متن کاملQuantum Optics in Cavities, Phase Space Representations, and the Classical Limit of Quantum Mechanics∗
II THE QUANTIZED ELECTROMAGNETIC FIELD 3 A Quadratures of the electromagnetic field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 B Coherent states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 C Squeezed states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 D Measurement of ...
متن کاملTesting operational phase concepts in quantum optics
An experimental comparison of several operational phase concepts is presented. In particular, it is shown that statistically motivated evaluation of experimental data may lead to a significant improvement in phase fitting upon the conventional Noh, Fougères and Mandel procedure. The analysis is extended to the asymptotic limit of large intensities, where a strong evidence in favor of multi–dime...
متن کاملQuantum shuttle in phase space.
We present a quantum theory of the shuttle instability in electronic transport through a nanostructure with a mechanical degree of freedom. A phase space formulation in terms of the Wigner function allows us to identify a crossover from the tunneling to the shuttling regime, thus extending the previously found classical results to the quantum domain. Further, a new dynamical regime is discovere...
متن کاملThe Quantum Oscillator in Phase Space
Starting with a real abstract algebra which encapsulates the algebraic structures of both classical and quantum mechanics, this paper presents a self–contained realization of the latter in phase space. Having both mechanics formulated in the same space opens two new windows into the comparative study of foundations. This stems from the fact that the same physical problem, as defined by a given ...
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ژورنال
عنوان ژورنال: The European Physical Journal Special Topics
سال: 2012
ISSN: 1951-6355,1951-6401
DOI: 10.1140/epjst/e2012-01532-4