177 citations · 997 across the 25 of their papers we have counts for
17 papers · 1 filter
Universality at work -- the local sine-Gordon model, lattice fermions, and quantum circuits
A. Anthore, D. M. Kennes, E. Boulat +3
We review the intriguing many-body physics resulting out of the interplay of a single, local impurity and the two-particle interaction in a one-dimensional Fermi system. Even if th…
Full exact solution of the out-of-equilibrium boundary sine Gordon model
Edouard Boulat
The massless boundary sine-Gordon (SG) model is the only interacting impurity model with a known exact solution out-of-equilibrium, yet existing so far only for integer values of t…
Infra-red expansion of entanglement entropy in the Interacting Resonant Level Model
Loïc Freton, Edouard Boulat, Hubert Saleur
In this paper we develop a method to describe perturbatively the entanglement entropy in a simple impurity model, the interacting resonant level model (IRLM), at low energy (i.e. i…
Competing orders in the generalized Hund chain model at half-filling
H. Nonne, E. Boulat, S. Capponi +1
By using a combination of several non-perturbative techniques -- a one-dimensional field theoretical approach together with numerical simulations using density matrix renormalizati…
Haldane charge conjecture in one-dimensional multicomponent fermionic cold atoms
H. Nonne, P. Lecheminant, S. Capponi +2
A Haldane conjecture is revealed for spin-singlet charge modes in 2N-component fermionic cold atoms loaded into a one-dimensional optical lattice. By means of a low-energy approach…
Duality approach to one-dimensional degenerate electronic systems
E. Boulat, P. Azaria, P. Lecheminant
We investigate the possible classification of zero-temperature spin-gapped phases of multicomponent electronic systems in one spatial dimension. At the heart of our analysis is the…