0703061v1

related topics
{energy, gaussian, time}
{let, theorem, proof}
{group, space, representation}
{operator, operators, space}
{phase, path, phys}
{vol, operators, histories}
{bell, inequality, local}
{state, states, entangled}
{states, state, optimal}
{information, entropy, channel}
{field, particle, equation}

Remarks on the Fact that the Uncertainty Principle Does Not Determine the Quantum State

Maurice de Gosson, Franz Luef

abstract: We discuss the relation between density matrices and the uncertainty principle; this allows us to justify and explain a recent statement by Man'ko et al. We thereafter use Hardy's uncertainty principle to prove a new result for Wigner distributions dominated by a Gaussian and we relate this result to the coarse-graining of phase-space by "quantum blobs".

oai_identifier:
oai:arXiv.org:quant-ph/0703061
categories:
quant-ph
comments:
To appaer in Phys. Lett. A
arxiv_id:
quant-ph/0703061
created:
2007-03-07

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