Thermal Hawking-like radiation in moving-mirror cavities is robust only for selected expanding configurations and low frequencies; all other configurations tested show non-thermal spectra.
Generation of quantum steering and interferometric power in the Dynamical Casimir Effect
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abstract
We analyse the role of the dynamical Casimir effect as a resource for quantum technologies, such as quantum cryptography and quantum metrology. In particular, we consider the generation of Einstein-Podolsky-Rosen steering and Gaussian interferometric power, two useful forms of asymmetric quantum correlations, in superconducting waveguides modulated by superconducting quantum interferometric devices. We show that, while a certain value of squeezing is required to overcome thermal noise and give rise to steering, any non-zero squeezing produces interferometric power which in fact increases with thermal noise.
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Robustness of analogue Hawking radiation in cavities with moving boundaries
Thermal Hawking-like radiation in moving-mirror cavities is robust only for selected expanding configurations and low frequencies; all other configurations tested show non-thermal spectra.