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Quantum-invariant processes in phase space

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Luis Aina, Alfredo (2004) Quantum-invariant processes in phase space. Physical review A, 70 (5). 052118_1-052118_7. ISSN 1050-2947

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Official URL: http://dx.doi.org/10.1103/PhysRevA.70.052118


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http://journals.aps.org/Publisher


Abstract

We show the formal equivalence between the phase-space representations of transformations and quantum states. We study invariant quantum input-output transformations in phase space and in Hilbert space. We show that all invariant processes are linear transformations while the converse is not true. Some relevant examples of application of these ideas are examined.


Item Type:Article
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©2004 The American Physical Society

Uncontrolled Keywords:Wigner distribution function; Noncommuting operators; Density-matrix; Quasiprobability distributions; Macroscopic superpositions; Probability-distributions; State representation; Mechanics; Dynamics; Light
Subjects:Sciences > Physics > Optics
ID Code:31424
Deposited On:28 Jul 2015 11:29
Last Modified:28 Jul 2015 11:29

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