Journal article
Quantum amplification and purification of noisy coherent states
- Abstract:
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Quantum-limited amplifiers increase the amplitude of quantum signals at the price of introducing additional noise. Quantum purification protocols operate in the reverse way, by reducing the noise while attenuating the signal. Here we investigate a scenario that interpolates between these two extremes. We search for the optimal physical process that generates M approximate copies of a pure and amplified coherent state, starting from N copies of a noisy coherent state with Gaussian modulation. ...
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- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Accepted manuscript, pdf, 326.5KB)
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- Publisher copy:
- 10.1103/PhysRevA.95.042303
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Authors
Funding
HKU Seed Funding for Basic Research
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Canadian Institute for Advanced Research
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Bibliographic Details
- Publisher:
- American Physical Society Publisher's website
- Journal:
- Physical Review A Journal website
- Volume:
- 95
- Issue:
- 4
- Article number:
- 042303
- Publication date:
- 2017-04-04
- DOI:
- EISSN:
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2469-9934
- ISSN:
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2469-9926
- Source identifiers:
-
733263
Item Description
- Pubs id:
-
pubs:733263
- UUID:
-
uuid:5a8cd1f5-22b9-45b2-a262-e281fe70afd8
- Local pid:
- pubs:733263
- Deposit date:
- 2017-11-06
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2017
- Notes:
- Copyright © 2017 American Physical Society. This is the accepted manuscript version of the article. The final version is available online from the American Physical Society at: https://doi.org/10.1103/PhysRevA.95.042303
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