3 papers
cond-mat.quant-gas2026
Bose-Hubbard model with power-law hopping in one dimension
Tanul Gupta, Nikolay V. Prokof'ev, Guido Pupillo
We investigate the zero-temperature phase diagram of the one-dimensional Bose-Hubbard model with power-law hopping decaying with distance as using exact large scale quantu…
cond-mat.quant-gas2025
The Bose-Hubbard polaron from weak to strong coupling
Tom Hartweg, Tanul Gupta, Guido Pupillo
We investigate the zero-temperature properties of a mobile impurity immersed in a bath of bosonic particles confined to a square lattice. We analyze the regimes of attractive and r…
cond-mat.quant-gas2025
Scale-invariant phase transition of disordered bosons in one dimension
Tanul Gupta, Guido Masella, Francesco Mattiotti +2
The disorder-induced quantum phase transition between superfluid and non-superfluid states of bosonic particles in one dimension is generally expected to be of the Berezinskii-Kost…