Excitation spectrum as a resource for efficient two-qubit entangling gates

被引:5
作者
Solenov, Dmitry [1 ]
Economou, Sophia E. [2 ]
Reinecke, Thomas L. [2 ]
机构
[1] Natl Acad, CNR, Washington, DC 20001 USA
[2] Naval Res Lab, Washington, DC 20375 USA
关键词
OPTICAL CONTROL; QUANTUM; ENTANGLEMENT; STATE; SPINS; DIVACANCY; DEFECT;
D O I
10.1103/PhysRevB.89.155404
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Physical systems representing qubits typically have one or more accessible quantum states in addition to the two states that encode the qubit. We demonstrate that active involvement of such auxiliary states can be beneficial in constructing entangling two-qubit operations. We investigate the general case of two multistate quantum systems coupled via a quantum resonator. The approach is illustrated with the examples of three systems: self-assembled InAs/GaAs quantum dots, NV centers in diamond, and superconducting transmon qubits. Fidelities of the gate operations are calculated based on numerical simulations of each system.
引用
收藏
页数:17
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共 52 条
  • [1] Abragam A., 1999, The Principles of Nuclear Magnetism
  • [2] Optical properties of the nitrogen-vacancy singlet levels in diamond
    Acosta, V. M.
    Jarmola, A.
    Bauch, E.
    Budker, D.
    [J]. PHYSICAL REVIEW B, 2010, 82 (20)
  • [3] [Anonymous], 1973, Quantum Statistical Properties of Radiation
  • [4] [Anonymous], ARXIVCONDMAT0411174
  • [5] [Anonymous], 2000, Physics of Solids and Liquids
  • [6] Interqubit coupling mediated by a high-excitation-energy quantum object
    Ashhab, S.
    Niskanen, A. O.
    Harrabi, K.
    Nakamura, Y.
    Picot, T.
    de Groot, P. C.
    Harmans, C. J. P. M.
    Mooij, J. E.
    Nori, Franco
    [J]. PHYSICAL REVIEW B, 2008, 77 (01):
  • [7] EPR identification of the triplet ground state and photoinduced population inversion for a Si-C divacancy in silicon carbide
    Baranov, PG
    Il'in, IV
    Mokhov, EN
    Muzafarova, MV
    Orlinskii, SB
    Schmidt, J
    [J]. JETP LETTERS, 2005, 82 (07) : 441 - 443
  • [8] Electrical Tuning of Single Nitrogen-Vacancy Center Optical Transitions Enhanced by Photoinduced Fields
    Bassett, L. C.
    Heremans, F. J.
    Yale, C. G.
    Buckley, B. B.
    Awschalom, D. D.
    [J]. PHYSICAL REVIEW LETTERS, 2011, 107 (26)
  • [9] Blum K., 1981, Density Matrix Theory and Applications
  • [10] Natural and artificial atoms for quantum computation
    Buluta, Iulia
    Ashhab, Sahel
    Nori, Franco
    [J]. REPORTS ON PROGRESS IN PHYSICS, 2011, 74 (10)