Optical analogue of the dynamical Casimir effect in a dispersion-oscillating fibre

Stefano Vezzoli, Arnaud Mussot, Niclas Westerberg, Alexandre Kudlinski, Hatef Dinparasti Saleh, Angus Prain, Fabio Biancalana, Eric Lantz, Daniele Faccio

Research output: Contribution to journalArticle

Abstract

The dynamical Casimir effect is the generation of pairs of real particles or photons from the vacuum as a result of a non-adiabatic change of a system parameter or boundary condition. As opposed to standard parametric amplification where the modulation occurs both in space and in time, this fundamental process requires a pure modulation in time, which makes its detection particularly challenging at optical frequencies. In this paper we experimentally demonstrate a realization of the analogue dynamical Casimir effect in the near-infrared optical regime in a dispersion-oscillating photonic crystal fibre. The experiments are based on the equivalence of the spatial modulation of the fibre core diameter to a pure temporal modulation when this is considered in the co-moving frame of the travelling pump pulse. We provide evidence of optical dynamical Casimir effect by measuring quantum correlations between the spectrally resolved photon pairs and prove their non-classical nature with photon anti-bunching.

Original languageEnglish
Article number84
JournalCommunications Physics
Volume2
DOIs
Publication statusPublished - 19 Jul 2019

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analogs
modulation
fibers
photons
bunching
equivalence
photonics
pumps
boundary conditions
vacuum
pulses
crystals

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Vezzoli, S., Mussot, A., Westerberg, N., Kudlinski, A., Dinparasti Saleh, H., Prain, A., ... Faccio, D. (2019). Optical analogue of the dynamical Casimir effect in a dispersion-oscillating fibre. Communications Physics, 2, [84]. https://doi.org/10.1038/s42005-019-0183-z
Vezzoli, Stefano ; Mussot, Arnaud ; Westerberg, Niclas ; Kudlinski, Alexandre ; Dinparasti Saleh, Hatef ; Prain, Angus ; Biancalana, Fabio ; Lantz, Eric ; Faccio, Daniele. / Optical analogue of the dynamical Casimir effect in a dispersion-oscillating fibre. In: Communications Physics. 2019 ; Vol. 2.
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Vezzoli, S, Mussot, A, Westerberg, N, Kudlinski, A, Dinparasti Saleh, H, Prain, A, Biancalana, F, Lantz, E & Faccio, D 2019, 'Optical analogue of the dynamical Casimir effect in a dispersion-oscillating fibre', Communications Physics, vol. 2, 84. https://doi.org/10.1038/s42005-019-0183-z

Optical analogue of the dynamical Casimir effect in a dispersion-oscillating fibre. / Vezzoli, Stefano; Mussot, Arnaud; Westerberg, Niclas; Kudlinski, Alexandre; Dinparasti Saleh, Hatef; Prain, Angus; Biancalana, Fabio; Lantz, Eric; Faccio, Daniele.

In: Communications Physics, Vol. 2, 84, 19.07.2019.

Research output: Contribution to journalArticle

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Vezzoli S, Mussot A, Westerberg N, Kudlinski A, Dinparasti Saleh H, Prain A et al. Optical analogue of the dynamical Casimir effect in a dispersion-oscillating fibre. Communications Physics. 2019 Jul 19;2. 84. https://doi.org/10.1038/s42005-019-0183-z