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Volumn 93, Issue 5, 2004, Pages

Measuring entangled qutrits and their use for quantum bit commitment

Author keywords

[No Author keywords available]

Indexed keywords

QUANTUM BIT COMMITMENT; QUANTUM STATE TOMOGRAPHY; QUTRITS; SPATIAL MODE ANALYZERS (SMA);

EID: 69349107101     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.93.053601     Document Type: Article
Times cited : (362)

References (29)
  • 11
    • 4344568485 scopus 로고    scopus 로고
    • note
    • Violating Bell's inequality is not a measure of entanglement, as states with different amounts of entanglement and mixture can give the same Bell violation [12].
  • 13
    • 0003434416 scopus 로고
    • University Science Books, Mill Valley, CA
    • A. E. Siegman, Lasers (University Science Books, Mill Valley, CA, 1986).
    • (1986) Lasers
    • Siegman, A.E.1
  • 15
    • 85174220679 scopus 로고    scopus 로고
    • note
    • +| - |j〉〈j|(i + 1)/2 - |k〉〈k|(i+1)/2; see M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information (CUP, Cambridge, 2000), p. 391.
  • 17
    • 4344626405 scopus 로고    scopus 로고
    • note
    • X is the number of counts in the X basis. If exact behavior is required, then Gaussian holograms should be used
  • 19
    • 4344588073 scopus 로고    scopus 로고
    • note
    • 0,±l〉)/√2. This is apparent in the output intensity pattern: a displaced charge |l| hologram produces a mode with a single displaced vortex [8]; whereas a hologram for |ξ〉 will produce/analyze a mode with |l| single-charge vortices [20].
  • 23
    • 4344604564 scopus 로고    scopus 로고
    • note
    • Bρ is the partial trace of the two-qutrit state, so that EOF = 1 for a maximally entangled state. Our EOF was calculated following the minimization algorithm given in [24] using the parametrization for unitaries given in [25]. Only 9 × 9 unitaries were searched, so the figure quoted is an upper bound.
  • 25
  • 28
    • 4344690331 scopus 로고    scopus 로고
    • note
    • By setting to zero terms associated with the zero-photon mode and renormalizing the remainder appropriately.
  • 29
    • 4344572578 scopus 로고    scopus 로고
    • note
    • Computer-generated, sinusoidal, phase gratings; diffraction angle of ∼ 0.28° at 670 nm; efficiencies of 20%-30%.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.