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Volumn 68, Issue 4, 2003, Pages 042306/1-042306/11

Contextual realization of the universal quantum cloning machine and of the universal-NOT gate by quantum-injected optical parametric amplification

Author keywords

[No Author keywords available]

Indexed keywords

AMPLIFICATION; ASYMPTOTIC STABILITY; HAMILTONIANS; LASER MODE LOCKING; LASER PULSES; LOGIC GATES; MATHEMATICAL TRANSFORMATIONS; MATRIX ALGEBRA; PUMPING (LASER); QUANTUM EFFICIENCY; SECOND HARMONIC GENERATION; SOLID STATE LASERS;

EID: 9544231391     PISSN: 10502947     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevA.68.042306     Document Type: Article
Times cited : (49)

References (43)
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    • 0007678383 scopus 로고    scopus 로고
    • note
    • J. Preskill, Lecture Notes on Quantum Computation, http://www.theory.caltech.edu/poeple/ph229/#lecture. A CP-map Λ(ρ) preserves positivity for: (a) local state in the Hilbert space H, (b) whe tensor-multiplied by the identical map I acting on any Hilbert space K, the extended map Λ(ρ) ⊗ I is positive for any state in the entangled space H ⊗ K, for any extension of K. A positive map (P map) only satisfies property (a).
    • Lecture Notes on Quantum Computation
    • Preskill, J.1
  • 11
    • 0001182571 scopus 로고    scopus 로고
    • note
    • N. Herbert, Found. Phys. 12, 1171 (1982). The first precise formulation of the no-cloning theorem based on the linear structure of quantum theory was indeed expressed in 1981 by G. Ghirardi in the Referee Report for Found. Phys. to the paper by N. Herbert [G. Ghirardi (private communication)].
  • 29
    • 0003582019 scopus 로고
    • edited by R. Glauber (Academic Press, New York)
    • J. Ducuing, in Quantum Optics, edited by R. Glauber (Academic Press, New York, 1969).
    • (1969) Quantum Optics
    • Ducuing, J.1
  • 30
    • 0000574174 scopus 로고
    • note
    • For π qubits the U condition could in principle be realized by a laser amplifier in which an optically isotropic active medium, e.g., a glass active rod or a gas cell, is excited by a symmetrical pump-energy distribution. This was indeed the first photon-cloning model ever analyzed. L. Mandel, Nature (London) 304, 188 (1983).
    • (1983) Nature (London) , vol.304 , pp. 188
    • Mandel, L.1
  • 31
    • 0037177529 scopus 로고    scopus 로고
    • note
    • A. Lamas-Linares, C. Simon, J.C. Howell, and D. Bouwmeester, Science 296, 712 (2002). In that experiment a semi-classical coherent injection state was adopted, and a UOQCM fidelity F ∼ 0.81 was measured for various input π conditions.
    • (2002) Science , vol.296 , pp. 712
    • Lamas-Linares, A.1    Simon, C.2    Howell, J.C.3    Bouwmeester, D.4
  • 39
    • 0037574296 scopus 로고    scopus 로고
    • note
    • y map can be realized by two successive λ/2 waveplates, the first oriented at an angle φ=0 to the horizontal, the second at φ = π/4. [M. Ricci (private communication); D. Kuan Li Oi, e-print quant-ph/0106035v1].
    • (1996) Phys. Rev. Lett. , vol.77 , pp. 1413
    • Peres, A.1
  • 40
    • 84983709460 scopus 로고    scopus 로고
    • (private communication)
    • V. Buzek (private communication)
    • Buzek, V.1
  • 43
    • 0347029873 scopus 로고    scopus 로고
    • note
    • F. De Martini, Phys. Lett. A 250, 15 (1998). The collinear QIOPA is found to be an efficient generator of multiphoton Schrödinger cat π states.
    • (1998) Phys. Lett. A , vol.250 , pp. 15
    • De Martini, F.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.