|
| related topics |
| {entanglement, phys, rev} |
| {field, particle, equation} |
| {cos, sin, state} |
| {photon, photons, single} |
| {group, space, representation} |
| {wave, scattering, interference} |
| {time, wave, function} |
| {light, field, probe} |
| {information, entropy, channel} |
|
Entangled Light in Moving Frames
Attila J. Bergou, Robert M. Gingrich, Christoph Adami
abstract: We calculate the entanglement between a pair of polarization-entangled photon
beams as a function of the reference frame, in a fully relativistic framework.
We find the transformation law for helicity basis states and show that, while
it is frequency independent, a Lorentz transformation on a momentum-helicity
eigenstate produces a momentum-dependent phase. This phase leads to changes in
the reduced polarization density matrix, such that entanglement is either
decreased or increased, depending on the boost direction, the rapidity, and the
spread of the beam.
- oai_identifier:
- oai:arXiv.org:quant-ph/0302095
- categories:
- quant-ph
- comments:
- 4 pages and 3 figures. Minor corrections, footnote on optimal basis
states
- doi:
- 10.1103/PhysRevA.68.042102
- arxiv_id:
- quant-ph/0302095
- journal_ref:
- Phys. Rev. A 68 (2003) 042102
- created:
- 2003-02-11
- updated:
- 2003-03-17
Full article ▸
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