Nonclassical microwave radiation from the dynamical Casimir effect

@article{Johansson2013NonclassicalMR,
  title={Nonclassical microwave radiation from the dynamical Casimir effect},
  author={J. R. Johansson and G{\"o}ran Johansson and C. M. Wilson and Per Delsing and Franco Nori},
  journal={Physical Review A},
  year={2013},
  volume={87},
  pages={043804}
}
We investigate quantum correlations in microwave radiation produced by the dynamical Casimir effect in a superconducting waveguide terminated and modulated by a superconducting quantum interference device. We apply nonclassicality tests and evaluate the entanglement for the predicted field states. For realistic circuit parameters, including thermal background noise, the results indicate that the produced radiation can be strictly nonclassical and can have a measurable amount of intermode… 

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References

SHOWING 1-10 OF 142 REFERENCES
Dynamical Casimir effect in a superconducting coplanar waveguide.
TLDR
It is experimentally feasible to directly detect this nonclassical broadband radiation and the power of the radiation is estimated for realistic parameters and shown to be identical to the one calculated in the dynamical Casimir effect for a single oscillating mirror.
Extracavity quantum vacuum radiation from a single qubit
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
Resonant cavity photon creation via the dynamical Casimir effect.
TLDR
The macroscopic electromagnetic field within a perfect cavity containing a thin slab with a time-dependent dielectric permittivity is quantized in terms of the dual potentials and it turns out that only TM modes can be excited efficiently.
Dynamical Casimir Effect in optically modulated cavities
Cavities with periodically oscillating mirrors have been predicted to excite photon pairs out of the quantum vacuum in a process known as the Dynamical Casimir Effect. Here we propose and analyse an
Dynamical Casimir effect in superconducting microwave circuits
We theoretically investigate the dynamical Casimir effect (DCE) in electrical circuits based on superconducting microfabricated waveguides with tunable boundary conditions. We propose implementing a
Analogue Casimir radiation using an optical parametric oscillator
We establish an explicit analogy between the dynamical Casimir effect and the photon emission of a thin non-linear crystal pumped inside a cavity. This allows us to propose a system based on a type-I
Dynamical Casimir effect in a Josephson metamaterial
The zero-point energy stored in the modes of an electromagnetic cavity has experimentally detectable effects, giving rise to an attractive interaction between the opposite walls, the static Casimir
Observation of the dynamical Casimir effect in a superconducting circuit
TLDR
The dynamical Casimir effect is observed in a superconducting circuit consisting of a coplanar transmission line with a tunable electrical length and two-mode squeezing in the emitted radiation is detected, which is a signature of the quantum character of the generation process.
Dynamical casimir effect at finite temperature
TLDR
Thermal effects on the creation of particles under the influence of time-dependent boundary conditions are investigated and the relevance of finite-temperature effects for the experimental verification of the dynamical Casimir effect is addressed.
Back-reaction effects of quantum vacuum in cavity quantum electrodynamics
We theoretically study an optical system in which the back-reaction of quantum vacuum manifests itself as a sizable suppression of the absorption by a three-level emitter embedded in an optical
...
...