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| related topics |
| {particle, mechanics, theory} |
| {temperature, thermal, energy} |
| {energy, gaussian, time} |
| {wave, scattering, interference} |
| {state, phys, rev} |
| {theory, mechanics, state} |
| {measurement, state, measurements} |
| {force, casimir, field} |
| {photon, photons, single} |
| {time, decoherence, evolution} |
| {classical, space, random} |
| {field, particle, equation} |
| {bell, inequality, local} |
| {entanglement, phys, rev} |
| {time, wave, function} |
|
Gravitational self-localization in quantum measurement
Tamas Geszti
abstract: Within Newton-Schr\"odinger quantum mechanics which allows gravitational
self-interaction, it is shown that a no-split no-collapse measurement scenario
is possible. A macroscopic pointer moves at low acceleration, controlled by the
Ehrenfest-averaged force acting on it. That makes classicality self-sustaining,
resolves Everett's paradox, and outlines a way to spontaneous emergence of
quantum randomness. Numerical estimates indicate that enhanced short-range
gravitational forces are needed for the scenario to work. The scheme fails to
explain quantum nonlocality, including two-detector anticorrelations, which
points towards the need of a nonlocal modification of the Newton-Schr\"odinger
coupling scheme.
- oai_identifier:
- oai:arXiv.org:quant-ph/0401086
- categories:
- quant-ph gr-qc
- comments:
- Accepted for publication in Physical Review A; extends and replaces
quant-ph/0204036
- doi:
- 10.1103/PhysRevA.69.032110
- arxiv_id:
- quant-ph/0401086
- journal_ref:
- Phys.Rev. A69 (2004) 032110
- created:
- 2004-01-15
Full article ▸
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