期刊
PHYSICAL REVIEW LETTERS
卷 94, 期 9, 页码 -出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.94.090501
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We have performed spectroscopy measurements on two coupled flux qubits. The qubits are coupled inductively, which results in a sigma(1)(z)sigma(2)(z) interaction. By applying microwave radiation, we observe resonances due to transitions from the ground state to the first two excited states. From the position of these resonances as a function of the applied magnetic field, we observe the coupling of the qubits. The coupling strength agrees with calculations of the mutual inductance.
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