Ground-state energy and excitation spectrum of the Lieb-Liniger model: accurate analytical results and conjectures about the exact solution

G Lang, F Hekking, A Minguzzi - SciPost Physics, 2017 - scipost.org
We study the ground-state properties and excitation spectrum of the Lieb-Liniger model, ie
the one-dimensional Bose gas with repulsive contact interactions. We solve the Bethe …

Large-time and long-distance asymptotics of the thermal correlators of the impenetrable anyonic lattice gas

Y Zhuravlev, E Naichuk, N Iorgov, O Gamayun - Physical Review B, 2022 - APS
We study thermal correlation functions of the one-dimensional impenetrable lattice anyons.
These correlation functions can be presented as a difference of two Fredholm determinants …

One-particle density matrix of a trapped Lieb–Liniger anyonic gas

S Scopa, L Piroli, P Calabrese - Journal of Statistical Mechanics …, 2020 - iopscience.iop.org
We provide a thorough characterisation of the zero-temperature one-particle density matrix
of trapped interacting anyonic gases in one dimension, exploiting recent advances in the …

Effective free-fermionic form factors and the XY spin chain

O Gamayun, N Iorgov, Y Zhuravlev - SciPost Physics, 2021 - scipost.org
We introduce effective form factors for one-dimensional lattice fermions with arbitrary phase
shifts. We study tau functions defined as series of these form factors. On the one hand we …

On the dynamics of free-fermionic tau-functions at finite temperature

D Chernowitz, O Gamayun - SciPost Physics Core, 2022 - scipost.org
In this work we explore an instance of the $\tau $-function of vertex type operators, specified
in terms of a constant phase shift in a free-fermionic basis. From the physical point of view …

Luttinger liquid in a non-equilibrium steady state

M Mintchev, P Sorba - Journal of Physics A: Mathematical and …, 2013 - iopscience.iop.org
We propose and investigate an exactly solvable model of non-equilibrium Luttinger liquid on
a star graph, modeling a multi-terminal quantum wire junction. The boundary condition at the …

Exact dynamics following an interaction quench in a one-dimensional anyonic gas

L Piroli, P Calabrese - Physical Review A, 2017 - APS
We study the nonequilibrium quench dynamics of a one-dimensional anyonic gas. We focus
on the integrable anyonic Lieb-Liniger model and consider the quench from noninteracting …

Strongly interacting mesoscopic systems of anyons in one dimension

NT Zinner - Physical Review A, 2015 - APS
Using the fractional statistical properties of so-called anyonic particles, we present solutions
of the Schrödinger equation for up to six strongly interacting particles in one-dimensional …

Deviations from off-diagonal long-range order in one-dimensional quantum systems

A Colcelli, G Mussardo, A Trombettoni - Europhysics Letters, 2018 - iopscience.iop.org
A quantum system exhibits off-diagonal long-range order (ODLRO) when the largest
eigenvalue $\lambda_0 $ of the one-body-density matrix scales as $\lambda_0\sim N …

One-body reduced density matrix of trapped impenetrable anyons in one dimension

G Marmorini, M Pepe, P Calabrese - Journal of Statistical …, 2016 - iopscience.iop.org
We study the one-body reduced density matrix of a system of N one-dimensional
impenetrable anyons trapped by a harmonic potential. To this purpose we extend two …