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Volumn 71, Issue 6, 2005, Pages

Spectroscopic resonance broadening in a Josephson junction qubit due to current noise

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; CALCULATION; MATHEMATICAL ANALYSIS; MICROWAVE RADIATION; NOISE; QUANTUM MECHANICS; SIMULATION; SPECTROSCOPY; STOCHASTIC MODEL; TEMPERATURE DEPENDENCE;

EID: 20144386982     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.71.064512     Document Type: Article
Times cited : (23)

References (40)
  • 19
    • 0000033264 scopus 로고
    • A. I. Larkin and Yu. N. Ovchinnikov, Zh. Eksp. Teor. Fiz. 91, 318 (1986) [Sov. Phys. JETP 64, 185 (1986)].
    • (1986) Sov. Phys. JETP , vol.64 , pp. 185
  • 24
    • 0004264796 scopus 로고    scopus 로고
    • edited by S. Reynaud, E. Giacobino, and J. Zinn-Justin (Elsevier Science, Amsterdam)
    • M. H. Devoret, in Quantum Fluctuations, edited by S. Reynaud, E. Giacobino, and J. Zinn-Justin (Elsevier Science, Amsterdam, 1997).
    • (1997) Quantum Fluctuations
    • Devoret, M.H.1
  • 25
    • 16344370322 scopus 로고    scopus 로고
    • note
    • -1. In the case of an Ohmic load, the cutoff frequency is set by the temperature of the load as a result of the Boltzmann factor.
  • 29
    • 16344368754 scopus 로고    scopus 로고
    • note
    • Here the basis is not the complete Hubert space, but the computation subspace of the Hamiltonian. The logical qubit states are the two lowest metastable states, but the third state is important for measurement and gate operations.
  • 30
    • 0011218586 scopus 로고
    • and references therein
    • Although the stochastic Bloch equation approach was previously used to analyze fluctuations in the fluorescence signal due to laser noise [see, e.g., Th. Haslwanter, H. Ritsch, J. Cooper, and P. Zoller, Phys. Rev. A 38, 5652 (1988),and references therein] and level spacing fluctuations [see, e.g., E. Barkai, Y. Jung, and R. Silbey, Phys. Rev. Lett. 87, 207403 (2001), and references therein], to our knowledge it has not been used to study the effect of low-frequency noise. Here the stochastic Bloch equation is expressed in the basis formed by the time-dependent metastable states of the system to take into account the effect of low-frequency noise on dissipation.
    • (1988) Phys. Rev. A , vol.38 , pp. 5652
    • Haslwanter, Th.1    Ritsch, H.2    Cooper, J.3    Zoller, P.4
  • 31
    • 39249085041 scopus 로고    scopus 로고
    • and references therein
    • Although the stochastic Bloch equation approach was previously used to analyze fluctuations in the fluorescence signal due to laser noise [see, e.g., Th. Haslwanter, H. Ritsch, J. Cooper, and P. Zoller, Phys. Rev. A 38, 5652 (1988),and references therein] and level spacing fluctuations [see, e.g., E. Barkai, Y. Jung, and R. Silbey, Phys. Rev. Lett. 87, 207403 (2001), and references therein], to our knowledge it has not been used to study the effect of low-frequency noise. Here the stochastic Bloch equation is expressed in the basis formed by the time-dependent metastable states of the system to take into account the effect of low-frequency noise on dissipation.
    • (2001) Phys. Rev. Lett. , vol.87 , pp. 207403
    • Barkai, E.1    Jung, Y.2    Silbey, R.3
  • 40
    • 16344385558 scopus 로고    scopus 로고
    • note
    • 11〉 since the contribution from this term is small for high-frequency noise.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.