175 citations · 175 across the 3 of their papers we have counts for
4 papers · 1 filter
Direct imaging of the order parameter of an atomic superfluid using matterwave optics
Puneet A. Murthy, Selim Jochim
We propose a method to directly measure the complex phase distribution, superfluid density and velocity field in an ultracold atomic superfluid. The method consists of mapping the…
Quantum scale anomaly and spatial coherence in a 2D Fermi superfluid
Puneet A. Murthy, Nicolò Defenu, Luca Bayha +4
Quantum anomalies are violations of classical scaling symmetries caused by quantum fluctuations. Although they appear prominently in quantum field theory to regularize divergent ph…
Anomalous breaking of scale invariance in a two-dimensional Fermi gas
Marvin Holten, Luca Bayha, Antonia C. Klein +3
The frequency of the breathing mode of a classical two dimensional Fermi gas in a harmonic confinement is fixed by the scale invariance of the Hamiltonian. Scale invariance is brok…
Observation of the Berezinskii-Kosterlitz-Thouless Phase Transition in an Ultracold Fermi Gas
P. A. Murthy, I. Boettcher, L. Bayha +7
We experimentally investigate the first-order correlation function of a trapped Fermi gas in the two-dimensional BEC-BCS crossover. We observe a transition to a low-temperature sup…