SCALES 1st General Meeting - Superfluid Condensates in Astrophysics and Laboratory Experiments

Session

2nd morning session

23 Jun 2026, 11:10

Physics Department, University of Coimbra

Conveners

2nd morning session

• Rena Zieve (University of California, Davis)

61. Dynamical universality in a driven quantum fluid of light

Dario Ballarini (CNR Nanotec)

23/06/2026, 11:10

Talk

Universal scaling near phase transitions is one of the central ideas of physics, linking the growth of spatial correlations to the slowing down of dynamics. So far, direct experimental access to this critical behavior has remained largely confined to equilibrium many-body systems, and especially to static critical behavior. Here we probe how universality emerges in a driven quantum fluid of...

54. Cold atoms in an optical cavity: from phase transitions to subradiant scattering

David Nagy (HUN-REN Wigner RCP)

23/06/2026, 12:00

Talk

Cold atoms trapped in the volume of a high-finesse optical resonator [1] form a hybrid quantum system, where strong atom-light coupling leads to a bistability involving hyperfine ground states [2]. This transition can be exploited both in the preparation and in the detection of atomic quantum states. We experimentally demonstrate an optical bistability between two hyperfine ground states [3]....

56. Kelvin-Helmholtz Instability in Fermionic Superfluids: Numerical Approach

Michał Śliwiński (Warsaw University of Technology)

23/06/2026, 12:25

Talk

The Kelvin–Helmholtz instability (KHI) in superfluid systems with annular geometry has recently attracted significant attention. While numerical studies based on Gross–Pitaevskii and Zaremba–Nikuni–Griffin models have explained some of its dynamics, the inconsistency persists, as evidenced by incorrect predictions of the instability's growth rates. We employ the SLDA framework to simulate KHI...