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Volumn 78, Issue 7, 2008, Pages

Two-qubit conditional quantum-logic operation in a single self-assembled quantum dot

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EID: 49249103785     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.78.075301     Document Type: Article
Times cited : (63)

References (24)
  • 5
    • 29744457913 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.72.121301
    • S. Stufler, P. Ester, A. Zrenner, and M. Bichler, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.72.121301 72, 121301 (R) (2005).
    • (2005) Phys. Rev. B , vol.72 , pp. 121301
    • Stufler, S.1    Ester, P.2    Zrenner, A.3    Bichler, M.4
  • 8
    • 0000972494 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.62.R2263
    • F. Troiani, U. Hohenester, and E. Molinari, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.62.R2263 62, R2263 (2000).
    • (2000) Phys. Rev. B , vol.62 , pp. 2263
    • Troiani, F.1    Hohenester, U.2    Molinari, E.3
  • 14
    • 0000791517 scopus 로고    scopus 로고
    • RSINAK 0034-6748 10.1063/1.1150614
    • A. M. Weiner, Rev. Sci. Instrum. RSINAK 0034-6748 10.1063/1.1150614 71, 1929 (2000).
    • (2000) Rev. Sci. Instrum. , vol.71 , pp. 1929
    • Weiner, A.M.1
  • 18
    • 49249121446 scopus 로고    scopus 로고
    • We attribute the different signals of dots B and C for co/cross polarized excitation in Fig. 3 to mechanical drift of the setup. The signal is optimized for dot A, resulting in a robust signal, whereas the unoptimized signals of peaks B and C are more sensitive to changes in the setup. All possible transitions: 0- X0, 0-2 X0, X0 -2 X0, and h- X+ associated with dot A have been identified. Under resonant excitation peaks B and C, show a 0- X0 like Rabi rotation, as do peaks observed in other apertures. These Rabi rotations have longer periods due to inefficient dot laser coupling, which we attribute to the relative position of dots B and C, with respect to the aperture. Similar features in other apertures are randomly distributed in energy with respect to the stronger peaks, further underlining their identity as separate dots.
    • We attribute the different signals of dots B and C for co/cross polarized excitation in Fig. 3 to mechanical drift of the setup. The signal is optimized for dot A, resulting in a robust signal, whereas the unoptimized signals of peaks B and C are more sensitive to changes in the setup. All possible transitions: 0- X0, 0-2 X0, X0 -2 X0, and h- X+ associated with dot A have been identified. Under resonant excitation peaks B and C, show a 0- X0 like Rabi rotation, as do peaks observed in other apertures. These Rabi rotations have longer periods due to inefficient dot laser coupling, which we attribute to the relative position of dots B and C, with respect to the aperture. Similar features in other apertures are randomly distributed in energy with respect to the stronger peaks, further underlining their identity as separate dots.
  • 19
    • 49249088550 scopus 로고    scopus 로고
    • The photocurrent detection efficiency is limited by the hole tunneling rate as shown in Ref.. Hence the X0 -2 X0 signal, which involves tunneling of two holes, is weaker than the 0- X0 signal at this bias.
    • The photocurrent detection efficiency is limited by the hole tunneling rate as shown in Ref.. Hence the X0 -2 X0 signal, which involves tunneling of two holes, is weaker than the 0- X0 signal at this bias.
  • 22
    • 28844507294 scopus 로고    scopus 로고
    • PRLTAO 0031-9007 10.1103/PhysRevLett.95.187404
    • Q. Q. Wang, A. Muller, M. T. Cheng, H. J. Zhou, P. Bianucci, and C. K. Shih, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.95.187404 95, 187404 (2005). In this work, an exciton spin flip was demonstrated using a 2π -pulse to drive both vacuum exciton transitions.
    • (2005) Phys. Rev. Lett. , vol.95 , pp. 187404
    • Wang, Q.Q.1    Muller, A.2    Cheng, M.T.3    Zhou, H.J.4    Bianucci, P.5    Shih, C.K.6
  • 24
    • 36248948958 scopus 로고    scopus 로고
    • PRLTAO 0031-9007 10.1103/PhysRevLett.99.217401
    • S. E. Economou and T. L. Reinecke, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.99.217401 99, 217401 (2007).
    • (2007) Phys. Rev. Lett. , vol.99 , pp. 217401
    • Economou, S.E.1    Reinecke, T.L.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.