aiqbench analysis
This research demonstrates the spontaneous generation of time-ordered photon pairs in a solid-state Kerr microcavity by isolating quantum fluctuations from coherent light. The study reveals how frequency-resolved detection and intrinsic quantum structures create specific temporal correlations between red and blue sideband photons, advancing fundamental understanding for quantum technologies.
Emission of time-ordered photon pairs from a coherently-driven Kerr microcavity
arXiv:2601.06468v2 Announce Type: replace-cross Abstract: Weakly-interacting many-body systems possess remarkable quantum properties that are essential components of quantum technologies, and constitute a topic of fundamental interest. Here we show that in a solid-state nonlinear microcavity embedding discrete modes of exciton-dressed photons, we can isolate a single eigenmode of quantum fluctuations from the much brighter coherent fraction of the field. In this regime, we perform frequency- and time-resolved correlations measurements between photons on the red and blue side of the fluctuations spectrum. When the average number of fluctuation quanta is smaller than one, we observe the formation of large pairwise time-ordered correlations: red photon first and blue photon second. We show that this peculiar time-ordering correlation emerges spontaneously from the interplay between frequency-resolved detection, and the non-trivial internal quantum structure of the elementary fluctuations.
Abstract:Weakly-interacting many-body systems possess remarkable quantum properties that are essential components of quantum technologies, and constitute a topic of fundamental interest. Here we show that in a solid-state nonlinear microcavity embedding discrete modes of exciton-dressed photons, we can isolate a single eigenmode of quantum fluctuations from the much brighter coherent fraction of the field. In this regime, we perform frequency- and time-resolved correlations measurements between photons on the red and blue side of the fluctuations spectrum. When the average number of fluctuation quanta is smaller than one, we observe the formation of large pairwise time-ordered correlations: red photon first and blue photon second. We show that this peculiar time-ordering correlation emerges spontaneously from the interplay between frequency-resolved detection, and the non-trivial internal quantum structure of the elementary fluctuations.
Quantum Gases (cond-mat.quant-gas); Quantum Physics (quant-ph)
arXiv:2601.06468 [cond-mat.quant-gas]
(or arXiv:2601.06468v2 [cond-mat.quant-gas] for this version)
Full text under the publisher's open licence · 142 words