|
related topics |
{states, state, optimal} |
{state, states, coherent} |
{operator, operators, space} |
{bell, inequality, local} |
{state, phys, rev} |
{group, space, representation} |
{qubit, qubits, gate} |
{measurement, state, measurements} |
{photon, photons, single} |
{state, states, entangled} |
{information, entropy, channel} |
{alice, bob, state} |
|
On the realization of Bell observables
Giacomo Mauro D'Ariano, Paolo Perinotti
abstract: We show how Bell observables on a bipartite quantum system can be obtained by
local observables via a controlled-unitary transformation. For continuous
variables this result holds for the Bell observable corresponding to the
non-conventional heterodyne measurement on two radiation modes, which is
connected through a 50-50 beam-splitter to two local observables given by
single-mode homodyne measurements. A simple scheme for a controlled-unitary
transformation of continuous variables is also presented, which needs only two
squeezers, a parametric downconverter and two beam splitters.
- oai_identifier:
- oai:arXiv.org:quant-ph/0406077
- categories:
- quant-ph
- comments:
- 9 pages, elsart, 1 figure
- doi:
- 10.1016/j.physleta.2004.07.006
- arxiv_id:
- quant-ph/0406077
- journal_ref:
- Phys. Lett. A, Vol. 329/3 pp 188-192 (2004)
- created:
- 2004-06-11
Full article ▸
|
|
related documents |
0612123v2 |
0107085v1 |
0307132v1 |
9806011v1 |
9801005v1 |
9907101v1 |
0406104v1 |
0407120v1 |
0205026v2 |
0701079v1 |
9703051v4 |
0501093v1 |
9708013v1 |
0205195v1 |
9911056v1 |
9502023v1 |
9704025v1 |
0312096v2 |
9511033v1 |
0003011v2 |
0507194v1 |
0210014v1 |
0503094v2 |
9608033v1 |
0011043v1 |
|