5 papers
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…
Detuning the Floquet anomalous chiral spin liquid
Matthieu Mambrini, Nathan Goldman, Didier Poilblanc
At high-frequency a periodically-driven quantum spin-1/2 system can emulate a chiral spin liquid (CSL) described by an effective static local chiral Hamiltonian. In contrast, at lo…
Quantum Simulation with Fluxonium Qutrit Arrays
Ivan Amelio, Quentin Ficheux, Nathan Goldman
Fluxonium superconducting circuits were originally proposed to realize highly coherent qubits. In this work, we explore how these circuits can be used to implement and harness qutr…
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 -fl…
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…