Dissipation and ultrastrong coupling in circuit QED

By Felix Beaudoin, Jay M. Gambetta, Alexandre Blais. 2011

312 citations recorded by the source corpus.

Including qubit relaxation and dephasing, and cavity relaxation, we derive a master equation that takes into account the qubit-resonator coupling. Special attention is given to the ultrastrong coupling regime, where the failure of the quantum optical master equation is manifest. In this situation, our model predicts an asymmetry in the vacuum Rabi splitting that could be used to probe dephasing noise at unexplored frequencies. We also show how uctuations in the qubit frequency can cause sideband transitions, squeezing, and Casimir-like photon generation.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/e774f0371ffbd9b07b05b963949605b30ecc3ed5

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

In Electrical and Electronic Engineering

Citations in the corpus

Multiphoton quantum Rabi oscillations in ultrastrong cavity QED (2015, methodology): “Clear evidence of this is that the standard input-output relations predict, even for a vacuum input and the system in the ground state, a finite output photon flux proportional to the average number of cavity photons [32,40,41], i.”
Open quantum systems with local and collective incoherent processes: Efficient numerical simulations using permutational invariance (2018, methodology): “[93].”
Microwave photonics with superconducting quantum circuits (2017, background): “A correct treatment of decoherence, input-output, and correlation functions for an ultrastrongly coupled system requires considering how operators induce transitions between eigenstates of the system [430, 433, 441, 442].”