|
related topics |
{trap, ion, state} |
{states, state, optimal} |
{spin, pulse, spins} |
{measurement, state, measurements} |
{state, phys, rev} |
{time, wave, function} |
{light, field, probe} |
{group, space, representation} |
{cavity, atom, atoms} |
{state, algorithm, problem} |
{state, states, coherent} |
{cos, sin, state} |
{entanglement, phys, rev} |
{force, casimir, field} |
|
Measuring the Quantum State of a Large Angular Momentum
Gerd Klose, Greg Smith, Poul S. Jessen
abstract: We demonstrate a general method to measure the quantum state of an angular
momentum of arbitrary magnitude. The (2F+1) x (2F+1) density matrix is
completely determined from a set of Stern-Gerlach measurements with (4F+1)
different orientations of the quantization axis. We implement the protocol for
laser cooled Cesium atoms in the 6S_{1/2}(F=4) hyperfine ground state and apply
it to a variety of test states prepared by optical pumping and Larmor
precession. A comparison of input and measured states shows typical
reconstruction fidelities of about 0.95.
- oai_identifier:
- oai:arXiv.org:quant-ph/0101017
- categories:
- quant-ph
- comments:
- 4 pages, 6 figures, submitted to PRL
- doi:
- 10.1103/PhysRevLett.86.4721
- arxiv_id:
- quant-ph/0101017
- created:
- 2001-01-03
Full article ▸
|
|
related documents |
0005036v1 |
0612123v2 |
0107085v1 |
0205026v2 |
0406077v1 |
0307132v1 |
0406104v1 |
0407120v1 |
0701079v1 |
0702033v1 |
0503094v2 |
0408022v3 |
0205195v1 |
0501093v1 |
0204070v1 |
0701198v1 |
0507194v1 |
0605213v2 |
0312096v2 |
0209139v1 |
0606242v3 |
0612033v1 |
0105014v2 |
0507024v1 |
0502144v1 |
|