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  • We investigate the uncertainty associated with a joint quantum measurement of two spin components of a spin-1/2 particle and quantify this in terms of entropy. We consider two entropic quantities, the joint entropy and the sum of the marginal entropies, and obtain lower bounds for each of these quantities. For the case of joint measurements where we measure each spin observable equally well, these lower bounds are tight.
  • We investigate the uncertainty associated with a joint quantum measurement of two spin components of a spin-1/2 particle and quantify this in terms of entropy. We consider two entropic quantities, the joint entropy and the sum of the marginal entropies, and obtain lower bounds for each of these quantities. For the case of joint measurements where we measure each spin observable equally well, these lower bounds are tight. (en)
Title
  • Entropic uncertainties for joint quantum measurements
  • Entropic uncertainties for joint quantum measurements (en)
skos:prefLabel
  • Entropic uncertainties for joint quantum measurements
  • Entropic uncertainties for joint quantum measurements (en)
skos:notation
  • RIV/68407700:21340/09:00210375!RIV14-MSM-21340___
http://linked.open...avai/riv/aktivita
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  • P(LC06002)
http://linked.open...iv/cisloPeriodika
  • 4
http://linked.open...vai/riv/dodaniDat
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  • Brougham, Thomas
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  • 313337
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  • RIV/68407700:21340/09:00210375
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  • 2-DIMENSIONAL HILBERT-SPACE; COMPLEMENTARY OBSERVABLES; BELL INEQUALITIES; INFORMATION; PRINCIPLE (en)
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  • US - Spojené státy americké
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  • [A6608970FF60]
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  • Physical Review A
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  • 80
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  • Barnett, S. M.
  • Andersson, E.
  • Brougham, Thomas
http://linked.open...ain/vavai/riv/wos
  • 000271351000035
issn
  • 1050-2947
number of pages
http://bibframe.org/vocab/doi
  • 10.1103/PhysRevA.80.042106
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  • 21340
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