Environment assisted speed-up of the field evolution in cavity QED

Abstract

We measure the quantum speed of the state evolution of the field in a weakly-driven optical cavity QED system. To this end, the mode of the electromagnetic field is considered as a quantum system of interest with a preferential coupling to a tunable environment: the atoms. By controlling the environment, i.e., changing the number of atoms coupled to the optical cavity mode, an environment assisted speed-up is realized: the quantum speed of the state re-population in the optical cavity increases with the coupling strength between the optical cavity mode and this non-Markovian environment (the number of atoms).

5 pages, 5 figures

References in corpus (6)

• Quantum speed limit for physical processes
• Quantum speed limits in open system dynamics
• Generalized Clausius inequality for nonequilibrium quantum processes
• Observation of non-Markovian dynamics of a single quantum dot in a micropillar cavity
• Optimal control of a qubit in an optical cavity
• Control of conditional quantum beats in cavity QED: amplitude decoherence and phase shifts

Cited by in corpus (4)

• Precursors of non-Markovianity
• Information backflow as a resource for entanglement
• Landau-Zener transition in a two-level system coupled to a single highly-excited oscillator
• Hybrid quantum-classical simulation of quantum speed limits in open quantum systems