172 citations · 1.2k across the 40 of their papers we have counts for
17 papers · 1 filter
The exact dynamical structure factor of one-dimensional hard rods and its universal random matrix behavior
Oleksandr Gamayun, Miłosz Panfil
We obtain an exact analytic expression for the dynamical structure factor of one-dimensional quantum gas of hard rods. Our result is valid for an arbitrary many-body state of the s…
Dynamic structure factor of quantum hard rods from exact form-factors
Stanisław Kiedrzyński, Emilia Witkowska, Miłosz Panfil
We study the quantum hard-rods model and obtain compact analytical expressions for density form factors, and a semi-analytical treatment for dynamic and static structure factors ca…
Kubo-Martin-Schwinger relation for an interacting mobile impurity
Oleksandr Gamayun, Miłosz Panfil, Felipe Taha Sant'Ana
In this work we study the Kubo-Martin-Schwinger (KMS) relation in the Yang-Gaudin model of an interacting mobile impurity. We use the integrability of the model to compute the dyna…
Prethermalization in coupled one-dimensional quantum gases
Maciej Łebek, Miłosz Panfil, Robert M. Konik
We consider the problem of the development of steady states in one-dimensional Bose gas tubes that are weakly coupled to one another through a density-density interaction. We analy…
Thermalization of interacting quasi-one-dimensional systems
Miłosz Panfil, Sarang Gopalakrishnan, Robert M. Konik
Many experimentally relevant systems are quasi-one-dimensional, consisting of nearly decoupled chains. In these systems, there is a natural separation of scales between the strong…
Mobile impurity in a one-dimensional gas at finite temperatures
Oleksandr Gamayun, Miłosz Panfil, Felipe Taha Sant'Ana
We consider the McGuire model of a one-dimensional gas of free fermions interacting with a single impurity. We compute the static one-body function and momentum distribution of the…
The relevant excitations for the one-body function in the Lieb-Liniger model
Miłosz Panfil, Felipe Taha Sant'Ana
We study the ground state one-body correlation function in the Lieb-Liniger model. In the spectral representation, correlations are built from contributions stemming from different…
Linearized regime of the generalized hydrodynamics with diffusion
Miłosz Panfil, Jacek Pawełczyk
We consider the generalized hydrodynamics including the recently introduced diffusion term for an initially inhomogeneous state in the Lieb-Liniger model. We construct a general so…
Edge singularities and quasi-long-range order in non-equilibrium steady states
Jacopo De Nardis, Miłosz Panfil
The singularities of the dynamical response function are one of the most remarkable effects in many-body interacting systems. However in one dimension these divergences only exist…
Particle-hole pairs and density-density correlations in the Lieb-Liniger model
Jacopo De Nardis, Miłosz Panfil
We review the recently introduced thermodynamic form factors for pairs of particle-hole excitations on finite-entropy states in the Lieb-Liniger model. We focus on the density oper…
Probing non-thermal density fluctuations in the one-dimensional Bose gas
Jacopo De Nardis, Miłosz Panfil, Andrea Gambassi +3
Quantum integrable models display a rich variety of non-thermal excited states with unusual properties. The most common way to probe them is by performing a quantum quench, i.e., b…
Exact correlations in the Lieb-Liniger model and detailed balance out-of-equilibrium
Jacopo De Nardis, Miłosz Panfil
We study the density-density correlation function of the 1D Lieb-Liniger model and obtain an exact expression for the small momentum limit of the static correlator in the thermodyn…
Probing the Excitations of a Lieb-Liniger Gas from Weak to Strong Coupling
Florian Meinert, Milosz Panfil, Manfred J. Mark +3
We probe the excitation spectrum of an ultracold one-dimensional Bose gas of Cesium atoms with repulsive contact interaction that we tune from the weakly to the strongly interactin…
Generalized Gibbs Ensembles for Quantum Field Theories
F. H. L. Essler, G. Mussardo, M. Panfil
We consider the non-equilibrium dynamics in isolated systems, described by quantum field theories (QFTs). After being prepared in a density matrix that is not an eigenstate of the…
Density form factors of the 1D Bose gas for finite entropy states
Jacopo De Nardis, Miłosz Panfil
We consider the Lieb-Liniger model for a gas of bosonic interacting particles. Using Algebraic Bethe Ansatz results we compute the thermodynamic limit of the form factors of th…
Finite temperature correlations in the Lieb-Liniger 1D Bose gas
Miłosz Panfil, Jean-Sébastien Caux
We address the problem of calculating finite-temperature response functions of an experimentally relevant low-dimensional strongly-correlated system: the integrable 1D Bose gas wit…
Metastable criticality and the super Tonks-Girardeau gas
Miłosz Panfil, Jacopo De Nardis, Jean-Sébastien Caux
We consider a 1D Bose gas with attractive interactions in an out-of-equilibrium highly excited state containing no bound states. We show that relaxation processes in the gas are su…