dorsal/arxiv
View SchemaNew Tests of Macroscopic Local Realism using Continuous Variable Measurements
| Authors | M. D. Reid |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0101050 |
| URL | https://arxiv.org/abs/quant-ph/0101050 |
Abstract
We show that quantum mechanics predicts an Einstein-Podolsky-Rosen paradox (EPR), and also a contradiction with local hidden variable theories, for photon number measurements which have limited resolving power, to the point of imposing an uncertainty in the photon number result which is macroscopic in absolute terms. We show how this can be interpreted as a failure of a new, very strong premise, called macroscopic local realism. We link this premise to the Schrodinger-cat paradox. Our proposed experiments ensure all fields incident on each measurement apparatus are macroscopic. We show that an alternative measurement scheme corresponds to balanced homodyne detection of quadrature phase amplitudes. The implication is that where either EPR correlations or failure of local realism is predicted for continuous variable (quadrature phase amplitude) measurements, one can perform a modified experiment which would lead to conclusions about the much stronger premise of macroscopic local realism.
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"abstract": "We show that quantum mechanics predicts an Einstein-Podolsky-Rosen paradox\n(EPR), and also a contradiction with local hidden variable theories, for photon\nnumber measurements which have limited resolving power, to the point of\nimposing an uncertainty in the photon number result which is macroscopic in\nabsolute terms. We show how this can be interpreted as a failure of a new, very\nstrong premise, called macroscopic local realism. We link this premise to the\nSchrodinger-cat paradox. Our proposed experiments ensure all fields incident on\neach measurement apparatus are macroscopic. We show that an alternative\nmeasurement scheme corresponds to balanced homodyne detection of quadrature\nphase amplitudes. The implication is that where either EPR correlations or\nfailure of local realism is predicted for continuous variable (quadrature phase\namplitude) measurements, one can perform a modified experiment which would lead\nto conclusions about the much stronger premise of macroscopic local realism.",
"arxiv_id": "quant-ph/0101050",
"authors": [
"M. D. Reid"
],
"categories": [
"quant-ph"
],
"title": "New Tests of Macroscopic Local Realism using Continuous Variable Measurements",
"url": "https://arxiv.org/abs/quant-ph/0101050"
},
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"execution_id": "67795c51-4f54-4635-9c21-865bf20e241a",
"id": "arXiv Dataset IDs",
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"variant": "snapshot-2026-03-01",
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