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  • We propose a scheme for an exact efficient transformation of a tensor product state of many identically prepared qubits into a state of a logarithmically small number of qubits. Using a quadratic number of elementary quantum gates we transform N identically prepared qubits into a state, which is nontrivial only on the first log(N+1) qubits. This procedure might be useful for quantum memories, as only a small portion of the original qubits has to be stored. Another possible application is in communicating a direction encoded in a set of quantum states, as the compressed state provides a high-effective method for such an encoding.
  • We propose a scheme for an exact efficient transformation of a tensor product state of many identically prepared qubits into a state of a logarithmically small number of qubits. Using a quadratic number of elementary quantum gates we transform N identically prepared qubits into a state, which is nontrivial only on the first log(N+1) qubits. This procedure might be useful for quantum memories, as only a small portion of the original qubits has to be stored. Another possible application is in communicating a direction encoded in a set of quantum states, as the compressed state provides a high-effective method for such an encoding. (en)
Title
  • Efficient compression of unknown quantum information
  • Efficient compression of unknown quantum information (en)
skos:prefLabel
  • Efficient compression of unknown quantum information
  • Efficient compression of unknown quantum information (en)
skos:notation
  • RIV/00216224:14330/10:00045670!RIV11-MSM-14330___
http://linked.open...avai/riv/aktivita
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  • Z(MSM0021622419)
http://linked.open...iv/cisloPeriodika
  • 3
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  • 256388
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  • RIV/00216224:14330/10:00045670
http://linked.open...riv/jazykVysledku
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  • Quantum information; compression (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [9C935BCE711F]
http://linked.open...i/riv/nazevZdroje
  • Physical Review A
http://linked.open...in/vavai/riv/obor
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 81
http://linked.open...iv/tvurceVysledku
  • Bužek, Vladimír
  • Plesch, Martin
http://linked.open...ain/vavai/riv/wos
  • 000276262500066
http://linked.open...n/vavai/riv/zamer
issn
  • 1050-2947
number of pages
http://localhost/t...ganizacniJednotka
  • 14330
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