Extracavity quantum vacuum radiation from a single qubit

By S. Liberato, D. Gerace, I. Carusotto, C. Ciuti. 2009

172 citations recorded by the source corpus.

We present a theory of the quantum vacuum radiation that is generated by a fast modulation of the vacuum Rabi frequency of a single two-level system strongly coupled to a single cavity mode. The dissipative dynamics of the Jaynes-Cummings model in the presence of antirotating-wave terms is described by a generalized master equation including non-Markovian terms. Peculiar spectral properties and significant extracavity quantum vacuum radiation output are predicted for state-of-the-art circuit cavity quantum electrodynamics systems with superconducting qubits.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/41b215489da42384aae15eaafa23976c775891bd

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Open quantum systems with local and collective incoherent processes: Efficient numerical simulations using permutational invariance (2018, background): “[91] S.”
Colloquium: Stimulating uncertainty: Amplifying the quantum vacuum with superconducting circuits (2011, methodology): “An alternative approach to amplification of vacuum fluctuations in a superconducting circuit was proposed in (De Liberato et al., 2009).”
Dynamical Casimir effect in a Josephson metamaterial (2011, background): “addition, several alternative proposals for experiments that could lead to a measurable flux of Casimir photons exist, for example sonoluminescence [13], changing the length of threedimensional cavity resonators by using a laser-modulated reflectivity of semiconducting layers [14–16], surface acoust”
Current status of the dynamical Casimir effect (2010, unknown): “Many effects of the circuit QED can be understood in the frameworks of a simple model with the interaction Hamiltonian Ĥint = h̄g(t)(â+ â )(σ̂++ σ̂−) [104] [where σ̂+ and σ̂− are the raising and lowering operators describing atomic (electron) excitations] or its generalizations [96].”
Multiphoton quantum Rabi oscillations in ultrastrong cavity QED (2015, background): “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.”