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Description
  • Measurement is integral to quantum information processing and communication; it is how information encoded in the state of a system is transformed into classical signals for further use. In quantum optics, measurements are typically destructive, so that the state is not available afterwards for further steps. Here we show how to measure the presence or absence of the vacuum in a quantum optical field without destroying the state, implementing the ideal projections onto the respective subspaces. This not only enables sequential measurements, useful for quantum communication, but it can also be adapted to create novel states of light via bare raising and lowering operators.
  • Measurement is integral to quantum information processing and communication; it is how information encoded in the state of a system is transformed into classical signals for further use. In quantum optics, measurements are typically destructive, so that the state is not available afterwards for further steps. Here we show how to measure the presence or absence of the vacuum in a quantum optical field without destroying the state, implementing the ideal projections onto the respective subspaces. This not only enables sequential measurements, useful for quantum communication, but it can also be adapted to create novel states of light via bare raising and lowering operators. (en)
Title
  • Nondemolition Measurement of the Vacuum State or its Complement
  • Nondemolition Measurement of the Vacuum State or its Complement (en)
skos:prefLabel
  • Nondemolition Measurement of the Vacuum State or its Complement
  • Nondemolition Measurement of the Vacuum State or its Complement (en)
skos:notation
  • RIV/68407700:21340/13:00205417!RIV14-MSM-21340___
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
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  • I
http://linked.open...iv/cisloPeriodika
  • 21
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http://linked.open...aciTvurceVysledku
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  • 91921
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  • RIV/68407700:21340/13:00205417
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  • Quantum electrodynamics; Nondemolition quantum measurement (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [460739E37892]
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  • Physical Review Letters
http://linked.open...in/vavai/riv/obor
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 110
http://linked.open...iv/tvurceVysledku
  • Potoček, Václav
  • Jeffers, J.
  • Oi, D.K.L.
http://linked.open...ain/vavai/riv/wos
  • 000319384400002
issn
  • 0031-9007
number of pages
http://bibframe.org/vocab/doi
  • 10.1103/PhysRevLett.110.210504
http://localhost/t...ganizacniJednotka
  • 21340
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