# Kinetics of mobile impurities and correlation functions in one-dimensional superfluids at finite temperature

Source: [Kinetics of mobile impurities and correlation functions in one-dimensional superfluids at finite temperature](<https://www.sota2.com/research/paper/68fa2d451e209131ce857bc1>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T16:08:57.429Z

Authors: M. Arzamasovs, F. Bovo, D. M. Gangardt

Published: 2013-09-10T20:00:40.000Z

## Abstract

We scrutinize the hydrodynamic approach for calculating dynamical correlations in one-dimensional superfluids near integrability and calculate the characteristic time scale {\\tau} beyond which this approach is valid. For time scales shorter than {\\tau} hydrodynamics fails and we develop an approach based on kinetics of fermionic quasiparticles described as mobile impurities. New universal results for the dynamical structure factor relevant to experiments in ultracold atomic gases are obtained.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1309.2647>)

[PDF](<https://arxiv.org/pdf/1309.2647.pdf>)