Quantum benchmarks for pure single-mode Gaussian states
Teleportation and storage of continuous variable states of light and atoms are essential building blocks for the realization of large-scale quantum networks. Rigorous validation of these implementations require identifying, and surpassing, benchmarks set by the most effective strategies attainable w...
| Main Authors: | , |
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| Format: | Article |
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American Physical Society
2014
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| Online Access: | https://eprints.nottingham.ac.uk/47227/ |
| _version_ | 1848797494881812480 |
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| author | Chiribella, Giulio Adesso, Gerardo |
| author_facet | Chiribella, Giulio Adesso, Gerardo |
| author_sort | Chiribella, Giulio |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Teleportation and storage of continuous variable states of light and atoms are essential building blocks for the realization of large-scale quantum networks. Rigorous validation of these implementations require identifying, and surpassing, benchmarks set by the most effective strategies attainable without the use of quantum resources. Such benchmarks have been established for special families of input states, like coherent states and particular subclasses of squeezed states. Here we solve the longstanding problem of defining quantum benchmarks for general pure Gaussian single-mode states with arbitrary phase, displacement, and squeezing, randomly sampled according to a realistic prior distribution. As a special case, we show that the fidelity benchmark for teleporting squeezed states with totally random phase and squeezing degree is 1/2, equal to the corresponding one for coherent states. We discuss the use of entangled resources to beat the benchmarks in experiments. |
| first_indexed | 2025-11-14T20:04:47Z |
| format | Article |
| id | nottingham-47227 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:04:47Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-472272020-05-04T16:42:06Z https://eprints.nottingham.ac.uk/47227/ Quantum benchmarks for pure single-mode Gaussian states Chiribella, Giulio Adesso, Gerardo Teleportation and storage of continuous variable states of light and atoms are essential building blocks for the realization of large-scale quantum networks. Rigorous validation of these implementations require identifying, and surpassing, benchmarks set by the most effective strategies attainable without the use of quantum resources. Such benchmarks have been established for special families of input states, like coherent states and particular subclasses of squeezed states. Here we solve the longstanding problem of defining quantum benchmarks for general pure Gaussian single-mode states with arbitrary phase, displacement, and squeezing, randomly sampled according to a realistic prior distribution. As a special case, we show that the fidelity benchmark for teleporting squeezed states with totally random phase and squeezing degree is 1/2, equal to the corresponding one for coherent states. We discuss the use of entangled resources to beat the benchmarks in experiments. American Physical Society 2014-01-07 Article PeerReviewed Chiribella, Giulio and Adesso, Gerardo (2014) Quantum benchmarks for pure single-mode Gaussian states. Physical Review Letters, 112 (1). 010501-1-010501-6. ISSN 1079-7114 https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.010501 doi:10.1103/PhysRevLett.112.010501 doi:10.1103/PhysRevLett.112.010501 |
| spellingShingle | Chiribella, Giulio Adesso, Gerardo Quantum benchmarks for pure single-mode Gaussian states |
| title | Quantum benchmarks for pure single-mode Gaussian states |
| title_full | Quantum benchmarks for pure single-mode Gaussian states |
| title_fullStr | Quantum benchmarks for pure single-mode Gaussian states |
| title_full_unstemmed | Quantum benchmarks for pure single-mode Gaussian states |
| title_short | Quantum benchmarks for pure single-mode Gaussian states |
| title_sort | quantum benchmarks for pure single-mode gaussian states |
| url | https://eprints.nottingham.ac.uk/47227/ https://eprints.nottingham.ac.uk/47227/ https://eprints.nottingham.ac.uk/47227/ |