dorsal/arxiv
View SchemaQuantum limits on phase-shift detection using multimode interferometers
| Authors | Jonas Soderholm, Gunnar Bjork, Bjorn Hessmo, Shuichiro Inoue |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0204031 |
| URL | https://arxiv.org/abs/quant-ph/0204031 |
| DOI | 10.1103/PhysRevA.67.053803 |
| Journal | Phys.Rev.A67:053803,2003 |
Abstract
Fundamental phase-shift detection properties of optical multimode interferometers are analyzed. Limits on perfectly distinguishable phase shifts are derived for general quantum states of a given average energy. In contrast to earlier work, the limits are found to be independent of the number of interfering modes. However, the reported bounds are consistent with the Heisenberg limit. A short discussion on the concept of well-defined relative phase is also included.
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"abstract": "Fundamental phase-shift detection properties of optical multimode\ninterferometers are analyzed. Limits on perfectly distinguishable phase shifts\nare derived for general quantum states of a given average energy. In contrast\nto earlier work, the limits are found to be independent of the number of\ninterfering modes. However, the reported bounds are consistent with the\nHeisenberg limit. A short discussion on the concept of well-defined relative\nphase is also included.",
"arxiv_id": "quant-ph/0204031",
"authors": [
"Jonas Soderholm",
"Gunnar Bjork",
"Bjorn Hessmo",
"Shuichiro Inoue"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.67.053803",
"journal_ref": "Phys.Rev.A67:053803,2003",
"title": "Quantum limits on phase-shift detection using multimode interferometers",
"url": "https://arxiv.org/abs/quant-ph/0204031"
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