Quantum coherence of Gaussian states

6533b853fe1ef96bd12acb5f

RESEARCH PRODUCT

Quantum coherence of Gaussian states

Daniela Buono Gaetano Nocerino Giuseppe Petrillo Gianpaolo Torre Giuseppe Zonzo Fabrizio Illuminati

subject

Condensed Matter - Other Condensed Matter Quantum Physics FOS: Physical sciences Mathematical Physics (math-ph)Quantum Physics (quant-ph)Mathematical Physics Other Condensed Matter (cond-mat.other)

description

We introduce a geometric quantification of quantum coherence in single-mode Gaussian states and we investigate the behavior of distance measures as functions of different physical parameters. In the case of squeezed thermal states, we observe that re-quantization yields an effect of noise-enhanced quantum coherence for increasing thermal photon number.

year	journal	country	edition	language
2016-09-04

https://dx.doi.org/10.48550/arxiv.1609.00913

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