info:eu-repo/semantics/article
From Adiabatic to Dispersive Readout of Quantum Circuits
Fecha
2020-08Registro en:
Park, Sunghun; Metzger, Cyril; Tosi, Leandro; Goffman, Marcelo Fabián; Urbina, Belén del Carmen; et al.; From Adiabatic to Dispersive Readout of Quantum Circuits; American Physical Society; Physical Review Letters; 125; 7; 8-2020; 1-10
0031-9007
CONICET Digital
CONICET
Autor
Park, Sunghun
Metzger, Cyril
Tosi, Leandro
Goffman, Marcelo Fabián
Urbina, Belén del Carmen
Pothier, Hugues
Levy Yeyati, Alfredo
Resumen
Spectral properties of a quantum circuit are efficiently read out by monitoring the resonance frequency shift it induces in a microwave resonator coupled to it. When the two systems are strongly detuned, theory attributes the shift to an effective resonator capacitance or inductance that depends on the quantum circuit state. At small detuning, the shift arises from the exchange of virtual photons, as described by the Jaynes-Cummings model. Here we present a theory bridging these two limits and illustrate, with several examples, its necessity for a general description of quantum circuits readout.