Linear optics only allows every possible quantum operation for one photon or one port
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- 作者：Julio José ; Moyano-Ferná ; ndeza ; moyano@uji.es" class="auth_mail" title="E-mail the corresponding author ; Juan Carlos Garcia-Escartinb ; juagar@tel.uva.es" class="auth_mail" title="E-mail the corresponding author
- 关键词：Quantum optics ; Linear optics multiports ; No-go theorems
- 刊名：Optics Communications
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：382
- 期：Complete
- 页码：237-240
- 全文大小：283 K
文摘
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Linear optical devices can manipulate the quantum states of light, but are limited.
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With linear optics, one port systems are equivalent to phase shifters.
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For one photon in a linear optics system, any valid quantum operation is possible.
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Otherwise, there are valid quantum operations beyond the reach of linear optics.