Photon number statistics uncover the fluctuations in non-equilibrium lattice dynamics

Esposito M, Titimbo K, Zimmermann K, Giusti F, Randi F, Boschetto D, Parmigiani F, Floreanini R, Benatti F, Fausti D (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Nature Communications Nature Publishing Group: Nature Communications

Book Volume: 6

Article Number: 10249

DOI: 10.1038/ncomms10249

Abstract

Fluctuations of the atomic positions are at the core of a large class of unusual material properties ranging from quantum para-electricity to high temperature superconductivity. Their measurement in solids is the subject of an intense scientific debate focused on seeking a methodology capable of establishing a direct link between the variance of the atomic displacements and experimentally measurable observables. Here we address this issue by means of non-equilibrium optical experiments performed in shot-noise-limited regime. The variance of the time-dependent atomic positions and momenta is directly mapped into the quantum fluctuations of the photon number of the scattered probing light. A fully quantum description of the non-linear interaction between photonic and phononic fields is benchmarked by unveiling the squeezing of thermal phonons in α-quartz.

Authors with CRIS profile

Daniele Fausti

Involved external institutions

Università degli Studi di Trieste IT Italy (IT) École Polytechnique - Université Paris-Saclay FR France (FR) National Institute for Nuclear Physics / Istituto Nazionale di Fisica Nucleare (INFN) IT Italy (IT)

How to cite

APA:

Esposito, M., Titimbo, K., Zimmermann, K., Giusti, F., Randi, F., Boschetto, D.,... Fausti, D. (2015). Photon number statistics uncover the fluctuations in non-equilibrium lattice dynamics. Nature Communications, 6. https://doi.org/10.1038/ncomms10249

MLA:

Esposito, Martina, et al. "Photon number statistics uncover the fluctuations in non-equilibrium lattice dynamics." Nature Communications 6 (2015).

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