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Volumn 67, Issue 10, 2003, Pages

Josephson-phase qubit without tunneling

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; ENERGY; MATHEMATICAL ANALYSIS; MICROWAVE RADIATION; QUANTUM MECHANICS;

EID: 0037741961     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.67.100508     Document Type: Article
Times cited : (68)

References (29)
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    • Y. Yu, S. Han, X. Chu, S.-I. Chu, and Z. Wang, Science 296, 889 (2002)
    • Y. Yu, S. Han, X. Chu, S.-I. Chu, and Z. Wang, Science 296, 889 (2002).
  • 7
    • 0036694695 scopus 로고    scopus 로고
    • Z. Zhou, S.-I. Chu, and S. Han, Phys. Rev. B 66, 054527 (2002)
    • Z. Zhou, S.-I. Chu, and S. Han, Phys. Rev. B 66, 054527 (2002).
  • 8
    • 85038932446 scopus 로고    scopus 로고
    • Throughout our paper, (Formula presented) need not be the third-lowest level. In fact, in regime (b) [cf. above Eq. (3b)], there can even be states between (Formula presented) and (Formula presented) However, any such additional states should not be too close to the three indicated ones
    • Throughout our paper, (Formula presented) need not be the third-lowest level. In fact, in regime (b) [cf. above Eq. (3b)], there can even be states between (Formula presented) and (Formula presented) However, any such additional states should not be too close to the three indicated ones.
  • 11
    • 85038951212 scopus 로고    scopus 로고
    • Apart from using a Hamiltonian term (Formula presented) for a nonsensical “overall phase shift.”
    • Apart from using a Hamiltonian term (Formula presented) for a nonsensical “overall phase shift.”
  • 12
    • 85038950587 scopus 로고    scopus 로고
    • Also, (Formula presented) for any A: the qubit wave functions have exponentially small spatial overlap due to the high tunneling barrier. Without this assumption, if, e.g., (Formula presented) in regime (b), then the (Formula presented) pulse could unintenionally irradiate the (Formula presented) as well as the (Formula presented) transition
    • Also, (Formula presented) for any A: the qubit wave functions have exponentially small spatial overlap due to the high tunneling barrier. Without this assumption, if, e.g., (Formula presented) in regime (b), then the (Formula presented) pulse could unintenionally irradiate the (Formula presented) as well as the (Formula presented) transition.
  • 13
    • 0034312628 scopus 로고    scopus 로고
    • ), Eq. (22): our off-diagonal (Formula presented) play a role formally analogous to their tunneling amplitude
    • D.V. Averin, J.R. Friedman, and J.E. Lukens, Phys. Rev. B 62,11 802 (2000), Eq. (22): our off-diagonal (Formula presented) play a role formally analogous to their tunneling amplitude.
    • (2000) Phys. Rev. B , vol.62 , pp. 11802
    • Averin, D.V.1    Friedman, J.R.2    Lukens, J.E.3
  • 15
    • 85038894640 scopus 로고    scopus 로고
    • B.W. Shore, The Theory of Coherent Atomic Excitation, Vol. 2 (Wiley, New York, 1990), Sec. 13.7
    • B.W. Shore, The Theory of Coherent Atomic Excitation, Vol. 2 (Wiley, New York, 1990), Sec. 13.7.
  • 16
    • 85038938028 scopus 로고    scopus 로고
    • Fine-tuned counterexamples can be contrived. A solvable case is (Formula presented) and (Formula presented) With (Formula presented) the eigenvalues read (Formula presented) and (Formula presented) The half Rabi-period evolution does not decompose, but the full-period evolution does—unfortunately into (Formula presented) so only a trivial gate is induced [cf. Fig. 22(d)]
    • Fine-tuned counterexamples can be contrived. A solvable case is (Formula presented) and (Formula presented) With (Formula presented) the eigenvalues read (Formula presented) and (Formula presented) The half Rabi-period evolution does not decompose, but the full-period evolution does—unfortunately into (Formula presented) so only a trivial gate is induced [cf. Fig. 22(d)].
  • 23
    • 0035805813 scopus 로고    scopus 로고
    • E. Il’ichev, M. Grajcar, R. Hlubina, R.P.J. IJsselsteijn, H.E. Hoenig, H.-G. Meyer, A. Golubov, M.H.S. Amin, A.M. Zagoskin, A.N. Omelyanchouk, and M.Yu. Kupriyanov, Phys. Rev. Lett. 86, 5369 (2001)
    • E. Il’ichev, M. Grajcar, R. Hlubina, R.P.J. IJsselsteijn, H.E. Hoenig, H.-G. Meyer, A. Golubov, M.H.S. Amin, A.M. Zagoskin, A.N. Omelyanchouk, and M.Yu. Kupriyanov, Phys. Rev. Lett. 86, 5369 (2001).
  • 24
    • 85038894701 scopus 로고    scopus 로고
    • cond-mat/9903170 (unpublished)
    • A.M. Zagoskin, cond-mat/9903170 (unpublished).
    • Zagoskin, A.M.1
  • 26
    • 85038898901 scopus 로고    scopus 로고
    • A.A. Golubov (private communication)
    • A.A. Golubov (private communication).
  • 28
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    • cond-mat/0206586 (unpublished)
    • F. Plastina and G. Falci, cond-mat/0206586 (unpublished);
    • Plastina, F.1    Falci, G.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.