163 citations · 3.3k across the 109 of their papers we have counts for
6 papers · 1 filter
Auxiliary-Field Monte Carlo for lattice bosons: tackling strong interactions and frustration
Daniele Malpetti, Tommaso Roscilde
We introduce a new numerical technique -- bosonic auxiliary-field Monte Carlo (bAFMC) -- which allows to calculate the thermal properties of large lattice-boson systems within a sy…
Quantum mean-field approximation for lattice quantum models: truncating quantum correlations, and retaining classical ones
Daniele Malpetti, Tommaso Roscilde
In a recent work [D. Malpetti and T. Roscilde, arXiv:1605.04223] we have shown that in quantum many-body systems at finite temperature, two-point correlations can be formally separ…
Detecting a many-body mobility edge with quantum quenches
Piero Naldesi, Elisa Ercolessi, Tommaso Roscilde
The many-body localization (MBL) transition is a quantum phase transition involving highly excited eigenstates of a disordered quantum many-body Hamiltonian, which evolve from "ext…
Critical Casimir forces from the equation of state of quantum critical systems
Adam Rancon, Louis-Paul Henry, Félix Rose +4
The mapping between a classical length and inverse temperature as imaginary time provides a direct equivalence between the Casimir force of a classical system in dimensions and…
Quantum correlations, separability and quantum coherence length in equilibrium many-body systems
Daniele Malpetti, Tommaso Roscilde
Non-locality is a fundamental trait of quantum many-body systems, both at the level of pure states, as well as at the level of mixed states. Due to non-locality, mixed states of an…
From quantum to thermal topological-sector fluctuations of strongly interacting bosons in a ring lattice
Tommaso Roscilde, Michael F. Faulkner, Steven T. Bramwell +1
Inspired by recent experiments on Bose-Einstein condensates in ring traps, we investigate the topological properties of the phase of a one-dimensional Bose field in the presence of…