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Charge-Qubit-Resonator-Interface-Based Nonlinear Circuit QED by Yu, Deshui; Kwek, Leong Chuan; Amico, Luigi; Dumke, Rainer is a scholarly article available to read on EtoBox.

What is Charge-Qubit-Resonator-Interface-Based Nonlinear Circuit QED about?

We explore applications of nonlinear circuit QED with a charge qubit inductively coupled to a microwave LC resonator in the photonic engineering and ultrastrong-coupling multiphoton quantum optics. Simply sweeping the gate-voltage bias achieves arbitrary Fock-state pulsed maser, where the single qubit plays the role of artificial gain medium. Resonantly pumping the parametric qubit-resonator interface leads to the squeezing of resonator field, which is utilizable to the quantum-limited microwave amplification. Moreover, upwards and downwards multiphoton quantum jumps may be observed in the steady state of the driving-free system.

Author

Yu, Deshui; Kwek, Leong Chuan; Amico, Luigi; Dumke, Rainer

Published

2018

Language

EN