https://phys.org/news/2025-07-scientists-density-modes-component-fluid.html

"We study #quantumfluids of light, or in other words, optical systems where light behaves like a #superfluid, which are much like…#superconductors." Quentin Glorieux, "The goal…was to see whether it's possible to push this analogy further by creating a mixture of two interacting fluids of light. Mixtures…support rich collective dynamics and offer a new platform for the study of quantum phase transitions, topological structures or even analog gravity."

Observation of 2D dam break flow and a gaseous phase of solitons in a photon fluid

https://arxiv.org/abs/2409.18738

#solitons #opticalsolitons #integrability #quantumfluids #physics

arXiv:2409.18738

We report the observation of a two-dimensional dam break flow of a photon fluid in a nonlinear optical crystal. By precisely shaping the amplitude and phase of the input wave, we investigate the transition from one-dimensional (1D) to two-dimensional (2D) nonlinear dynamics. We observe wave breaking in both transverse spatial dimensions with characteristic timescales determined by the aspect ratio of the input box-shaped field. The interaction of dispersive shock waves propagating in orthogonal directions gives rise to a 2D ensemble of solitons. Depending on the box size, we report the evidence of a dynamic phase characterized by a constant number of solitons, resembling a 1D solitons gas in integrable systems. We measure the statistical features of this gaseous-like phase. Our findings pave the way to the investigation of collective solitonic phenomena in two dimensions, demonstrating that the loss of integrability does not disrupt the dominant phenomenology.

[complexlight.org](https://www.newcomplexlight.org/observation-of-2d-dam-break-flow-and-a-gaseous-phase-of-solitons-in-a-photon-fluid/)

[PhysRevLett.133.183801](https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.133.183801)

https://www.nature.com/articles/s42254-023-00630-y
Analogue simulations of quantum gravity with fluids
22 August 2023
Braunstein, Faizal, Krauss, Marino & Shah: the potential use of analogue hydrodynamic systems beyond classical general relativity towards the exploration of quantum gravitational effects…We aim at bridging the gap between the non-overlapping communities of experimentalists working with classical and #quantumfluids and #quantumgravity theorists

Hello Mastodon!

This is account of the group led by Alberto Bramati, Quentin Glorieux and Hanna Le Jeannic (@Quantum_Hanna) at the Laboratoire Kastler Brossel (@lkb_lab)

We study nano-optics, quantum emitters and quantum fluids of lights in Rb vapors and polaritons.

#quantumoptics #quantumgas #rubidium #polaritons #nanophotonics #emitters #nanofibers #quantumfluids #quantumlight

I don't think I've given a proper #introduction yet, so here's mine. I'm a postdoc at #Dartmouth College, where I am working on bosonic analogs of condensed matter systems and strongly correlated electron systems. I graduated with a Ph.D. in 2021 from #BostonCollege, where I worked under Prof. Kevin Bedell on #CondensedMatter theory, with a focus on #FermiLiquid theory. My main interests are #QuantumFluids, unconventional #Superconductors, #FrustratedMagnetism, and #QuantumHall physics.