Generalized Dynamical Duality of Quantum Particles in One Dimension

Fuente: arXiv
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Main Authors: Chen, Yu, Cui, Xiaoling
Format: Preprint
Published: 2025
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author Chen, Yu
Cui, Xiaoling
author_facet Chen, Yu
Cui, Xiaoling
contents We prove a generalized dynamical duality for identical particles in one dimension (1D). Namely, 1D systems with arbitrary statistics -- including bosons, fermions and anyons -- approach the same momentum distribution after long-time expansion from a trap, provided they share the same scattering length for short-range interactions. This momentum distribution is uniquely given by the rapidities, or quasi-momenta, of the initial trapped state. Our results can be readily detected in quasi-1D ultracold gases with tunable s- and p-wave interactions.
format Preprint
id arxiv_https___arxiv_org_abs_2510_25056
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Generalized Dynamical Duality of Quantum Particles in One Dimension
Chen, Yu
Cui, Xiaoling
Quantum Gases
Quantum Physics
We prove a generalized dynamical duality for identical particles in one dimension (1D). Namely, 1D systems with arbitrary statistics -- including bosons, fermions and anyons -- approach the same momentum distribution after long-time expansion from a trap, provided they share the same scattering length for short-range interactions. This momentum distribution is uniquely given by the rapidities, or quasi-momenta, of the initial trapped state. Our results can be readily detected in quasi-1D ultracold gases with tunable s- and p-wave interactions.
title Generalized Dynamical Duality of Quantum Particles in One Dimension
topic Quantum Gases
Quantum Physics
url https://arxiv.org/abs/2510.25056