|
related topics |
{group, space, representation} |
{energy, gaussian, time} |
{let, theorem, proof} |
{state, states, coherent} |
{states, state, optimal} |
{phase, path, phys} |
{operator, operators, space} |
{state, algorithm, problem} |
{trap, ion, state} |
{measurement, state, measurements} |
{bell, inequality, local} |
{spin, pulse, spins} |
{theory, mechanics, state} |
|
Moments of the Wigner Distribution and a Generalized Uncertainty
Principle
R. Simon, N. Mukunda
abstract: The nonnegativity of the density operator of a state is faithfully coded in
its Wigner distribution, and this places constraints on the moments of the
Wigner distribution. These constraints are presented in a canonically invariant
form which is both concise and explicit. Since the conventional uncertainty
principle is such a constraint on the first and second moments, our result
constitutes a generalization of the same to all orders. Possible application in
quantum state reconstruction using optical homodyne tomography is noted.
- oai_identifier:
- oai:arXiv.org:quant-ph/9708037
- categories:
- quant-ph
- comments:
- REVTex, no figures, 9 pages
- arxiv_id:
- quant-ph/9708037
- created:
- 1997-08-22
Full article ▸
|
|
related documents |
0609072v1 |
0302011v2 |
0703061v1 |
0406010v1 |
0701054v1 |
9910012v1 |
0011029v1 |
0402134v1 |
0309136v2 |
0204128v1 |
0108028v1 |
9707055v1 |
9812015v1 |
0402060v2 |
0312220v1 |
9907101v1 |
9711012v1 |
0110062v1 |
0507151v1 |
0305141v1 |
0202081v4 |
0408169v1 |
0106095v1 |
0501093v1 |
0104045v1 |
|