3 papers
cond-mat.quant-gas2021
Chaos in the Bose-glass phase of a one-dimensional disordered Bose fluid
Romain Daviet, Nicolas Dupuis
We show that the Bose-glass phase of a one-dimensional disordered Bose fluid exhibits a chaotic behavior, i.e., an extreme sensitivity to external parameters. Using bosonization, t…
cond-mat.quant-gas2019
Bose-glass phase of a one-dimensional disordered Bose fluid: metastable states, quantum tunneling and droplets
Nicolas Dupuis, Romain Daviet
We study a one-dimensional disordered Bose fluid using bosonization, the replica method and a nonperturbative functional renormalization-group approach. We find that the Bose-glass…
cond-mat.stat-mech2018
Nonperturbative functional renormalization-group approach to the sine-Gordon model and the Lukyanov-Zamolodchikov conjecture
R. Daviet, N. Dupuis
We study the quantum sine-Gordon model within a nonperturbative functional renormalization-group approach (FRG). This approach is benchmarked by comparing our findings for the soli…