3 papers
quant-ph2026
Instabilities of the continuous superradiant laser
Bruno Laburthe-Tolra, Martin Robert-de-Saint-Vincent, Benjamin Pasquiou
We investigate the intensity stability of the superradiant laser. Our study focuses on the architecture where a continuous beam of atoms in an electronically excited state crosses…
quant-ph2025
Scalable spin squeezing from spontaneous breaking of a continuous symmetry
Tommaso Comparin, Fabio Mezzacapo, Martin Robert-de-Saint-Vincent +1
Spontaneous symmetry breaking (SSB) is a property of Hamiltonian equilibrium states which, in the thermodynamic limit, retain a finite average value of an order parameter even afte…
quant-ph2025
Coherent control over the high-dimensional space of the nuclear spin of alkaline-earth atoms
Husain Ahmed, Andrea Litvinov, Pauline Guesdon +5
We demonstrate coherent manipulation of the nuclear degrees of freedom of ultracold ground-state strontium 87 atoms, thus providing a toolkit for fully exploiting the corresponding…