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Quantum vacuum emission from a refractive-index front
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dc.contributor.author | Jacquet, Maxime Jules Roland | |
dc.contributor.author | Koenig, Friedrich Ernst Wilhelm | |
dc.date.accessioned | 2015-09-16T10:10:23Z | |
dc.date.available | 2015-09-16T10:10:23Z | |
dc.date.issued | 2015-08-28 | |
dc.identifier | 215935792 | |
dc.identifier | 49f55c8f-9a30-4f1c-8d19-020bdeec362d | |
dc.identifier | 84940750973 | |
dc.identifier | 000360284100011 | |
dc.identifier.citation | Jacquet , M J R & Koenig , F E W 2015 , ' Quantum vacuum emission from a refractive-index front ' , Physical Review. A, Atomic, molecular, and optical physics , vol. 92 , 023851 . https://doi.org/10.1103/PhysRevA.92.023851 | en |
dc.identifier.issn | 1050-2947 | |
dc.identifier.uri | https://hdl.handle.net/10023/7482 | |
dc.description | The authors would like to acknowledge useful discussions with S. Finazzi and R. Parentani, as well as support from EPSRC via Grant No. EP/L505079/1. | en |
dc.description.abstract | A moving boundary separating two otherwise homogeneous regions of a dielectric is known to emit radiation from the quantum vacuum. An analytical framework based on the Hopfield model, describing a moving refractive-index step in 1+1 dimensions for realistic dispersive media has been developed by S. Finazzi and I. Carusotto [Phys. Rev. A 87, 023803 (2013)]. We expand the use of this model to calculate explicitly spectra of all modes of positive and negative norms. Furthermore, for lower step heights we obtain a unique set of mode configurations encompassing black-hole and white-hole setups. This leads to a realistic emission spectrum featuring black-hole and white-hole emission for different frequencies. We also present spectra as measured in the laboratory frame that include all modes, in particular a dominant negative-norm mode, which is the partner mode in any Hawking-type emission. We find that the emission spectrum is highly structured into intervals of emission with black-hole, white-hole, and no horizons. Finally, we estimate the number of photons emitted as a function of the step height and find a power law of 2.5 for low step heights. | |
dc.format.extent | 9 | |
dc.format.extent | 665777 | |
dc.language.iso | eng | |
dc.relation.ispartof | Physical Review. A, Atomic, molecular, and optical physics | en |
dc.subject | Fiber optics | en |
dc.subject | Hawking effect | en |
dc.subject | Event horizon | en |
dc.subject | Parametric amplification | en |
dc.subject | QC Physics | en |
dc.subject | Physics and Astronomy(all) | en |
dc.subject | NDAS | en |
dc.subject.lcc | QC | en |
dc.title | Quantum vacuum emission from a refractive-index front | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | 10.1103/PhysRevA.92.023851 | |
dc.description.status | Peer reviewed | en |
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