9708013v1

related topics
{state, states, coherent}
{operator, operators, space}
{entanglement, phys, rev}
{states, state, optimal}
{equation, function, exp}
{group, space, representation}
{observables, space, algebra}
{temperature, thermal, energy}
{state, phys, rev}
{energy, gaussian, time}
{cos, sin, state}

Fidelity for displaced squeezed states and the oscillator semigroup

Horia Scutaru

abstract: The fidelity for two displaced squeezed thermal states is computed using the fact that the corresponding density operators belong to the oscillator semigroup.

oai_identifier:
oai:arXiv.org:quant-ph/9708013
categories:
quant-ph
comments:
3 pages, REVTEX, no figures, submitted to Journal of Physics A, May 5, 1997
doi:
10.1088/0305-4470/31/15/025
arxiv_id:
quant-ph/9708013
journal_ref:
J.Phys.A31:3659-3663,1998
report_no:
FT-428-May 5-1997
created:
1997-08-07

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