3 papers
cond-mat.stat-mech2026
Coherent Bose-Einstein condensation with fluctuating density
L. Salasnich, A. Crisanti, A. Sarracino +1
Bose-Einstein condensation in the grand canonical ensemble admits a formulation in terms of a phase-density decomposition of the condensate mode operator . In the pr…
cond-mat.stat-mech2025
Bose-Einstein Condensation, Fluctuations and Spontaneous Symmetry Breaking
A. Crisanti, A. Sarracino, M. Zannetti
The realisation of Bose-Einstein condensation under grand-canonical conditions has provided the experimental evidence for the simultaneous occurrence of macroscopic fluctuations an…
cond-mat.stat-mech2019
Condensation vs Ordering: From the Spherical Models to BEC in the Canonical and Grand Canonical Ensemble
A. Crisanti, A. Sarracino, M. Zannetti
In this paper we take a fresh look at the long standing issue of the nature of macroscopic density fluctuations in the grand canonical treatment of the Bose-Einstein condensation (…