Variable-frequency-controlled coupling in charge qubit circuits: Effects of microwave field on qubit-state readout

被引：20
作者：
He, Xiao-Ling [1 ]
Liu, Yu-xi
You, J. Q.
Nori, Franco
机构：
[1] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[2] Fudan Univ, Surface Phys Lab Natl Key Lab, Shanghai 200433, Peoples R China
[3] Inst Phys & Chem Res, Wako, Saitama 351, Japan
[4] Japan Sci & Technol Agcy JST, CREST, Kawaguchi, Saitama 3320012, Japan
[5] Univ Michigan, Ctr Theoret Phys, Dept Phys, Ctr Study Complex Syst, Ann Arbor, MI 48109 USA
来源：
PHYSICAL REVIEW A | 2007年 / 76卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.76.022317
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
To implement quantum-information processing, microwave fields are often used to manipulate superconducting qubits. We study how the coupling between superconducting charge qubits can be controlled by variable-frequency magnetic fields. We also study the effects of the microwave fields on the readout of the charge-qubit states. The measurement of the charge-qubit states can be used to demonstrate the statistical properties of photons.
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页数：6
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共 21 条
  • [11] Measuring the quality factor of a microwave cavity using superconducting qubit devices
    Liu, YX
    Wei, LF
    Nori, F
    [J]. PHYSICAL REVIEW A, 2005, 72 (03):
  • [12] Quantum-state engineering with Josephson-junction devices
    Makhlin, Y
    Schön, G
    Shnirman, A
    [J]. REVIEWS OF MODERN PHYSICS, 2001, 73 (02) : 357 - 400
  • [13] Protocol for universal gates in optimally biased superconducting qubits
    Rigetti, C
    Blais, A
    Devoret, M
    [J]. PHYSICAL REVIEW LETTERS, 2005, 94 (24)
  • [14] Manipulating the quantum state of an electrical circuit
    Vion, D
    Aassime, A
    Cottet, A
    Joyez, P
    Pothier, H
    Urbina, C
    Esteve, D
    Devoret, MH
    [J]. SCIENCE, 2002, 296 (5569) : 886 - 889
  • [15] Demonstration of conditional gate operation using superconducting charge qubits
    Yamamoto, T
    Pashkin, YA
    Astafiev, O
    Nakamura, Y
    Tsai, JS
    [J]. NATURE, 2003, 425 (6961) : 941 - 944
  • [16] Quantum information processing with superconducting qubits in a microwave field
    You, JQ
    Nori, F
    [J]. PHYSICAL REVIEW B, 2003, 68 (06):
  • [17] Superconducting circuits and quantum information
    You, JQ
    Nori, F
    [J]. PHYSICS TODAY, 2005, 58 (11) : 42 - 47
  • [18] Scalable quantum computing with Josephson charge qubits
    You, JQ
    Tsai, JS
    Nori, F
    [J]. PHYSICAL REVIEW LETTERS, 2002, 89 (19)
  • [19] Controllable manipulation and entanglement of macroscopic quantum states in coupled charge qubits
    You, JQ
    Tsai, JS
    Nori, F
    [J]. PHYSICAL REVIEW B, 2003, 68 (02):
  • [20] YOU JQ, ARXIVCONDMAT0306203
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