dorsal/arxiv
View SchemaConditional quantum-state engineering using ancillary squeezed-vacuum states
| Authors | Hyunseok Jeong, Andrew M. Lance, Nicolai B. Grosse, Thomas Symul, Ping Koy Lam, Timothy C. Ralph |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0606153 |
| URL | https://arxiv.org/abs/quant-ph/0606153 |
| DOI | 10.1103/PhysRevA.74.033813 |
| Journal | Phys. Rev. A 74, 033813 (2006) |
Abstract
We investigate an optical scheme to conditionally engineer quantum states using a beam splitter, homodyne detection and a squeezed vacuum as an ancillar state. This scheme is efficient in producing non-Gaussian quantum states such as squeezed single photons and superpositions of coherent states (SCSs). We show that a SCS with well defined parity and high fidelity can be generated from a Fock state of $n\leq4$, and conjecture that this can be generalized for an arbitrary $n$ Fock state. We describe our experimental demonstration of this scheme using coherent input states and measuring experimental fidelities that are only achievable using quantum resources.
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"abstract": "We investigate an optical scheme to conditionally engineer quantum states\nusing a beam splitter, homodyne detection and a squeezed vacuum as an ancillar\nstate. This scheme is efficient in producing non-Gaussian quantum states such\nas squeezed single photons and superpositions of coherent states (SCSs). We\nshow that a SCS with well defined parity and high fidelity can be generated\nfrom a Fock state of $n\\leq4$, and conjecture that this can be generalized for\nan arbitrary $n$ Fock state. We describe our experimental demonstration of this\nscheme using coherent input states and measuring experimental fidelities that\nare only achievable using quantum resources.",
"arxiv_id": "quant-ph/0606153",
"authors": [
"Hyunseok Jeong",
"Andrew M. Lance",
"Nicolai B. Grosse",
"Thomas Symul",
"Ping Koy Lam",
"Timothy C. Ralph"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.74.033813",
"journal_ref": "Phys. Rev. A 74, 033813 (2006)",
"title": "Conditional quantum-state engineering using ancillary squeezed-vacuum states",
"url": "https://arxiv.org/abs/quant-ph/0606153"
},
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