V-shaped superconducting artificial atom based on two inductively coupled transmons

Article

关键词: QUANTUM;    QUBIT;    PAIR;   

DOI  :  10.1103/PhysRevB.92.020515

来源: SCIE

【 摘 要 】

Circuit quantum electrodynamics systems are typically built from resonators and two-level artificial atoms, but the use of multilevel artificial atoms instead can enable promising applications in quantum technology. Here we present an implementation of a Josephson junction circuit dedicated to operate as a V-shape artificial atom. Based on a concept of two internal degrees of freedom, the device consists of two transmon qubits coupled by an inductance. The Josephson nonlinearity introduces a strong diagonal coupling between the two degrees of freedom that finds applications in quantum nondemolition readout schemes, and in the realization of microwave cross-Kerr media based on superconducting circuits.

【 授权许可】

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