dorsal/arxiv
View SchemaSqueezing as an irreducible resource
| Authors | Samuel L. Braunstein |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9904002 |
| URL | https://arxiv.org/abs/quant-ph/9904002 |
| DOI | 10.1103/PhysRevA.71.055801 |
| Journal | Phys.Rev.A71:055801,2005 |
Abstract
We show that squeezing is an irreducible resource which remains invariant under transformations by linear optical elements. In particular, we give a decomposition of any optical circuit with linear input-output relations into a linear multiport interferometer followed by a unique set of single mode squeezers and then another multiport interferometer. Using this decomposition we derive a no-go theorem for superpositions of macroscopically distinct states from single-photon detection. Further, we demonstrate the equivalence between several schemes for randomly creating polarization-entangled states. Finally, we derive minimal quantum optical circuits for ideal quantum non-demolition coupling of quadrature-phase amplitudes.
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"abstract": "We show that squeezing is an irreducible resource which remains invariant\nunder transformations by linear optical elements. In particular, we give a\ndecomposition of any optical circuit with linear input-output relations into a\nlinear multiport interferometer followed by a unique set of single mode\nsqueezers and then another multiport interferometer. Using this decomposition\nwe derive a no-go theorem for superpositions of macroscopically distinct states\nfrom single-photon detection. Further, we demonstrate the equivalence between\nseveral schemes for randomly creating polarization-entangled states. Finally,\nwe derive minimal quantum optical circuits for ideal quantum non-demolition\ncoupling of quadrature-phase amplitudes.",
"arxiv_id": "quant-ph/9904002",
"authors": [
"Samuel L. Braunstein"
],
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"quant-ph"
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"doi": "10.1103/PhysRevA.71.055801",
"journal_ref": "Phys.Rev.A71:055801,2005",
"title": "Squeezing as an irreducible resource",
"url": "https://arxiv.org/abs/quant-ph/9904002"
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