activity
19982026
most citedThe truncated Wigner method for Bose condensed gases: limits of validity and applications

352 citations · 3.7k across the 84 of their papers we have counts for

collaborators

86 papers

cond-mat.quant-gas2026

Bose-Einstein Condensates in Time Dependent Traps

Yvan Castin, Ralph Dum

We present analytical results for the macroscopic wave function of a Bose-Einstein condensate in a time dependent harmonic potential. The evolution of the spatial density is a dila…

cond-mat.quant-gas2022★ 2 cited

Fourth cluster and virial coefficients of a unitary Fermi gas for an arbitrary mass ratio

Shimpei Endo, Yvan Castin

We calculate the fourth cluster coefficients of the homogeneous unitary spin 1/2 Fermi gas as functions of the internal-state mass ratio, over intervals constrained by the 3- or 4-…

physics.atom-ph2020

Nuclear spin squeezing by continuous quantum non-demolition measurement: a theoretical study

Alan Serafin, Yvan Castin, Matteo Fadel +2

We propose to take advantage of the weak coupling of ground-state helium-3 nuclear spin to its environment to produce long-lived macroscopic quantum states, nuclear spin squeezed s…

cond-mat.quant-gas2020★ 1 cited

Random walk of a massive quasiparticle in the phonon gas of an ultralow temperature superfluid

Yvan Castin

We consider a 3D homogeneous superfluid at low temperature with 2 types of excitations, gapless phonons with a linear dispersion relation at low wavenumber, and gapped quasipar…

cond-mat.quant-gas2019★ 1 cited

Bragg spectroscopy and pair-breaking-continuum mode in a superfluid Fermi gas

Yvan Castin

The superfluid, pair condensed spin-1/2 Fermi gases are supposed to exhibit at nonzero wave vector a still unobserved collective excitation mode in their pair-breaking continuum. U…

cond-mat.quant-gas2019★ 14 cited

Collective excitation branch in the continuum of pair-condensed Fermi gases : analytical study and scaling laws

Yvan Castin, Hadrien Kurkjian

The pair-condensed unpolarized spin- Fermi gases have a collective excitation branch in their pair-breaking continuum (V.A. Andrianov, V.N. Popov, 1976). We study it at zero t…