Probing coherent Cooper pair splitting with cavity photons

Article

关键词: CIRCUIT QUANTUM ELECTRODYNAMICS;    CARBON NANOTUBES;    SPIN;    NOISE;    SUPERCONDUCTOR;    ENTANGLEMENT;    ELECTRONS;    QUBIT;   

DOI  :  10.1103/PhysRevB.90.125139

来源: SCIE

【 摘 要 】

This work discusses theoretically the behavior of a microwave cavity and a Cooper pair beam splitter (CPS) coupled nonresonantly. The cavity frequency pull is modified when the CPS is resonant with a microwave excitation. This provides a direct way to probe the coherence of the Cooper pair splitting process. More precisely, the cavity frequency pull displays an anticrossing whose specificities can be attributed unambiguously to coherent Cooper pair injection. This work illustrates that microwave cavities represent a powerful tool to investigate current transport in complex nanocircuits.

【 授权许可】

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