|
| related topics |
| {states, state, optimal} |
| {equation, function, exp} |
| {cos, sin, state} |
| {let, theorem, proof} |
| {measurement, state, measurements} |
| {information, entropy, channel} |
| {theory, mechanics, state} |
| {energy, state, states} |
| {state, algorithm, problem} |
| {algorithm, log, probability} |
|
Minimal optimal generalized quantum measurements
J. I. Latorre, P. Pascual, R. Tarrach
abstract: Optimal and finite positive operator valued measurements on a finite number
$N$ of identically prepared systems have been presented recently. With physical
realization in mind we propose here optimal and minimal generalized quantum
measurements for two-level systems.
We explicitly construct them up to N=7 and verify that they are minimal up to
N=5. We finally propose an expression which gives the size of the minimal
optimal measurements for arbitrary $N$.
- oai_identifier:
- oai:arXiv.org:quant-ph/9803066
- categories:
- quant-ph hep-th
- comments:
- 9 pages, Latex
- doi:
- 10.1103/PhysRevLett.81.1351
- arxiv_id:
- quant-ph/9803066
- journal_ref:
- Phys.Rev.Lett. 81 (1998) 1351-1354
- report_no:
- UB-ECM-1
- created:
- 1998-03-25
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