|
| related topics |
| {state, states, entangled} |
| {energy, gaussian, time} |
| {particle, mechanics, theory} |
| {observables, space, algebra} |
| {time, decoherence, evolution} |
| {measurement, state, measurements} |
| {states, state, optimal} |
| {theory, mechanics, state} |
| {time, systems, information} |
|
Quantum nonlocality and quantum dynamics
S. Gheorghiu-Svirschevski
abstract: We argue that usual quantum statics and the dynamical equivalence of mixed
quantum states to {\it probabilistic mixtures}suffice to guarantee a linear
evolution law, which necessarily complies with the no-signaling condition.
Alternatively, there are nonlinear dynamical extensions that treat mixed states
as {\it elementary mixtures} and evolve {\it every}pure state linearly and
unitarily. But if all {\it entangled} pure states evolve linearly, then
elementary mixtures cannot evolve nonlinearly without challenging quantum
locality. Conversely, any such extension that is relativistically well behaved
demands a nonlinear evolution [decoherence] of pure entangled states. Wherefrom
follows that the linear evolution of entangled pure states provides an
unequivocal signature of linear quantum dynamics.
- oai_identifier:
- oai:arXiv.org:quant-ph/0203153
- categories:
- quant-ph
- comments:
- Latex2e/RevTex4; 5 pgs; submitted to Phys.Lett.A. Sec.4 removed and
superseded by quant-ph/0207042. Sec.3 now includes argument on equivalence of
"remote preparation" to "projection postulate", and a well-behaved nonlinear
example for illustration
- arxiv_id:
- quant-ph/0203153
- created:
- 2002-03-29
- updated:
- 2002-07-08
Full article ▸
|
|
| related documents |
| 0508071v3 |
| 0509195v1 |
| 0302075v1 |
| 0004051v2 |
| 0510237v1 |
| 0607190v1 |
| 0403022v2 |
| 0109102v1 |
| 0409140v1 |
| 0302093v1 |
| 0308031v2 |
| 0211063v1 |
| 0608012v2 |
| 0702257v2 |
| 0510078v3 |
| 0307023v2 |
| 9903037v1 |
| 0407227v3 |
| 0309110v2 |
| 0307073v4 |
| 0401129v2 |
| 0207058v3 |
| 0412220v2 |
| 0407179v1 |
| 0202041v3 |
|