0202041v3

related topics
{state, states, entangled}
{level, atom, field}
{bell, inequality, local}
{state, phys, rev}
{cavity, atom, atoms}
{group, space, representation}
{phase, path, phys}
{operator, operators, space}
{photon, photons, single}
{entanglement, phys, rev}
{cos, sin, state}
{time, decoherence, evolution}
{key, protocol, security}
{state, states, coherent}
{vol, operators, histories}
{measurement, state, measurements}
{alice, bob, state}

Entanglement and the SU(2) phase states in atomic systems

M. Ali Can, Alexander A. Klyachko, Alexander S. Shumovsky

abstract: We show that a system of 2n identical two-level atoms interacting with n cavity photons manifests entanglement and that the set of entangled states coincides with the so-called SU(2) phase states. In particular, violation of classical realism in terms of the GHZ and GHSH conditions is proved. We discuss a new property of entanglement expressed in terms of local measurements. We also show that generation of entangled states in the atom-photon systems under consideration strongly depends on the choice of initial conditions and that the parasitic influence of cavity detuning can be compensated through the use of Kerr medium.

oai_identifier:
oai:arXiv.org:quant-ph/0202041
categories:
quant-ph
comments:
10 pages, 1 figure
doi:
10.1103/PhysRevA.66.022111
arxiv_id:
quant-ph/0202041
journal_ref:
PRA, 66, 022111 (2002)
created:
2002-02-07
updated:
2002-09-30

Full article ▸

related documents
0510237v1
0607190v1
0302075v1
0409140v1
0608012v2
0510078v3
0109102v1
0508071v3
0307023v2
0509195v1
0407227v3
0412220v2
0311051v1
0401129v2
0509218v1
0511116v2
0004051v2
0502082v3
0311184v1
0307073v4
0404051v4
0407179v1
0203153v2
0403043v2
0604123v2