240 citations · 696 across the 16 of their papers we have counts for
7 papers · 1 filter
Competition between pair and single-particle superfluidity in bosonic quasi-flat bands: A Gaussian state approach
Maxime Burgher, Simon Loddo, Laurens Vanderstraeten +2
The interplay between interactions and quantum geometry can drive weakly dispersive bosons into different exotic many-body phases. In this work we study a quasi flat-band model in…
Quantum impurities in finite-temperature Bose gases: Detecting vortex proliferation across the BKT and BEC transitions
Paolo Comaron, Nathan Goldman, Atac Imamoglu +1
Detecting vortices in neutral superfluids represents an outstanding experimental challenge. Using stochastic classical-field methods, we theoretically show that a quantum impurity…
Fate of chiral order and impurity self-pinning in flat bands with local symmetry
Maxime Burgher, Marco Di Liberto, Nathan Goldman +1
Interacting bosons on a single plaquette threaded by a -flux can spontaneously break time-reversal symmetry, resulting in a chiral loop current. Connecting such bosonic -flux…
Chiral polaron formation on the edge of topological quantum matter
Amit Vashisht, Ivan Amelio, Laurens Vanderstraeten +3
Immersing a mobile impurity in a quantum many-body environment can reveal fundamental properties of the background medium, hence providing a powerful probe of quantum matter. This…
Polaron spectroscopy of interacting Fermi systems: insights from exact diagonalization
Ivan Amelio, Nathan Goldman
Immersing a mobile impurity into a many-body quantum system represents a theoretically intriguing and experimentally effective way of probing its properties.In this work, we study…
Topological Phases for Fermionic Cold Atoms on the Lieb Lattice
N. Goldman, D. F. Urban, D. Bercioux
We investigate the properties of the Lieb lattice, i.e a face-centered square lattice, subjected to external gauge fields. We show that an Abelian gauge field leads to a peculiar q…
Wilson Fermions and Axion Electrodynamics in Optical Lattices
A. Bermudez, L. Mazza, M. Rizzi +3
The formulation of massless relativistic fermions in lattice gauge theories is hampered by the fundamental problem of species doubling, namely, the rise of spurious fermions modify…