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  • We study the relationship between the entanglement, mixedness, and energy of two-qubit and two-mode Gaussian quantum states. We parametrize the set of allowed states of these two fundamentally different physical systems using measures of entanglement, mixedness, and energy that allow us to compare and contrast the two systems using a phase diagram. This phase diagram enables one to clearly identify not only the physically allowed states, but the set of states connected under an arbitrary quantum operation. We pay particular attention to the maximally entangled mixed states of each system. Following this we investigate how efficiently one may transfer entanglement from two-mode to two-qubit states.
  • We study the relationship between the entanglement, mixedness, and energy of two-qubit and two-mode Gaussian quantum states. We parametrize the set of allowed states of these two fundamentally different physical systems using measures of entanglement, mixedness, and energy that allow us to compare and contrast the two systems using a phase diagram. This phase diagram enables one to clearly identify not only the physically allowed states, but the set of states connected under an arbitrary quantum operation. We pay particular attention to the maximally entangled mixed states of each system. Following this we investigate how efficiently one may transfer entanglement from two-mode to two-qubit states. (en)
Title
  • Entanglement, purity and energy: Two qubits vs Two modes
  • Entanglement, purity and energy: Two qubits vs Two modes (en)
skos:prefLabel
  • Entanglement, purity and energy: Two qubits vs Two modes
  • Entanglement, purity and energy: Two qubits vs Two modes (en)
skos:notation
  • RIV/00216224:14330/06:00016172!RIV10-GA0-14330___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA201/04/1153), Z(MSM0021622419)
http://linked.open...iv/cisloPeriodika
  • No. 4
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 474243
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14330/06:00016172
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • entanglement; purity; energy (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [F8F2421D9A22]
http://linked.open...i/riv/nazevZdroje
  • Physical Review A
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • Vol. 74
http://linked.open...iv/tvurceVysledku
  • Bužek, Vladimír
  • Ziman, Mário
  • McHugh, Derek
http://linked.open...ain/vavai/riv/wos
  • 000241723100026
http://linked.open...n/vavai/riv/zamer
issn
  • 1050-2947
number of pages
http://localhost/t...ganizacniJednotka
  • 14330
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