Generalized Dynamical Duality of Quantum Particles in One Dimension

• URL: http://arxiv.org/abs/2510.25056v1
• Date: Wed, 29 Oct 2025 00:46:57 GMT
• Title: Generalized Dynamical Duality of Quantum Particles in One Dimension
• Authors: Yu Chen, Xiaoling Cui,
• Abstract summary: We prove a generalized dynamical duality for identical particles in one dimension (1D)<n>We can be readily detected in quasi-1D ultracold gases with tunable s- and p-wave interactions.
• Score: 3.281467681022574
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: 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.

Related papers

• Unsplit Spreading: An Overlooked Signature of Long-Range Interaction [13.490631794544166]
  Unsplit spreading can occur only when $(k)$ develops singular features, precisely what long-range interactions enable.<n>We show that unsplit spreading emerges in realistic open quantum systems, such as 1D and 2D subwavelength atomic arrays.<n>Our work establishes unsplit spreading as an experimentally accessible, smoking-gun signature of singular band structure induced by long-range physics.
  arXiv  Detail & Related papers  (2026-01-22T08:24:57Z)
• Pair scattering from time-modulated impurity in the Bose-Hubbard model [0.0]
  We analyze single-particle and pair (doublon) transmission, exploring a range of interaction strengths and drive amplitudes.<n>At intermediate and weak attractive interactions, we observe significant pair dissociation and the emergence of dynamically localized single-particle modes.<n>These findings provide new avenues for engineering controllable quantum transport and localized states in ultracold atom experiments.
  arXiv  Detail & Related papers  (2025-11-21T08:20:45Z)
• Spin resolved momentum spectra for vacuum pair production via a generalized two level model [17.44597560204009]
  We have formulated a generalized two level model for studying the pair production in multidimensional time-dependent electric fields. It can provide momentum spectra with fully spin resolved components for all possible combined spin states of the particle and anti-particle simultaneously. It is believed that by this two level model one can extend researches on pair production for more different background fields.
  arXiv  Detail & Related papers  (2024-09-18T09:33:40Z)
• Realization of 1D Anyons with Arbitrary Statistical Phase [0.9894420655516565]
  We realize Abelian anyons in 1D with arbitrary exchange statistics using ultracold atoms in an optical lattice. We explore the dynamical behavior of two anyons undergoing quantum walks, and observe the anyonic Hanbury Brown-Twiss effect. Our work forms the foundation for exploring the many-body behavior of 1D anyons.
  arXiv  Detail & Related papers  (2023-06-02T17:59:29Z)
• Rapidity and momentum distributions of 1D dipolar quantum gases [4.308470505441047]
  We show that rapidity and momentum distributions are nearly unaffected by the dipolar interactions. We also observe that significant changes of these distributions occur when decreasing the strength of the contact interactions.
  arXiv  Detail & Related papers  (2022-11-16T18:59:07Z)
• Quantum chaos and thermalization in the two-mode Dicke model [77.34726150561087]
  We discuss the onset of quantum chaos and thermalization in the two-mode Dicke model. The two-mode Dicke model exhibits normal to superradiant quantum phase transition. We show that the temporal fluctuations of the expectation value of the collective spin observable around its average are small and decrease with the effective system size.
  arXiv  Detail & Related papers  (2022-07-08T11:16:29Z)
• Collective photon emission patterns from two atoms in free space [26.98676199482944]
  Modification of spontaneous decay in space and time is a central topic of quantum physics. We study the resulting collective spontaneous emission patterns in entangled Dicke states. Our results demonstrate that the detection of a single photon can profoundly modify the collective emission of an atomic array.
  arXiv  Detail & Related papers  (2022-02-28T10:53:39Z)
• Observation-dependent suppression and enhancement of two-photon coincidences by tailored losses [68.8204255655161]
  Hong-Ou-Mandel (HOM) effect can lead to a perfect suppression of two-particle coincidences between the output ports of a balanced beam splitter. In this work, we demonstrate experimentally that the two-particle coincidence statistics of two bosons can instead be seamlessly tuned to substantial enhancement. Our findings reveal a new approach to harnessing non-Hermitian settings for the manipulation of multi-particle quantum states.
  arXiv  Detail & Related papers  (2021-05-12T06:47:35Z)
• Bosonic Quantum Dynamics Following Colliding Potential Wells [0.0]
  We investigate the correlated non-equilibrium quantum dynamics of two bosons confined in two colliding and uniformly accelerated Gaussian wells. Despite the comparatively weak interaction strengths employed in this work, we identify strong inter-particle correlations by analyzing the corresponding Von Neumann entropy.
  arXiv  Detail & Related papers  (2021-02-02T14:59:08Z)
• Universal R\'enyi Entropy of Quasiparticle Excitations [0.24366811507669117]
  We calculate R'enyi entropies of quasiparticle excitations in the many-body gapped fermions, bosons, and XY chains. We find additional contributions to the universal R'enyi entropy in the excited states with quasiparticles of different momenta.
  arXiv  Detail & Related papers  (2020-10-27T00:56:09Z)
• Theory of waveguide-QED with moving emitters [68.8204255655161]
  We study a system composed by a waveguide and a moving quantum emitter in the single excitation subspace. We first characterize single-photon scattering off a single moving quantum emitter, showing both nonreciprocal transmission and recoil-induced reduction of the quantum emitter motional energy.
  arXiv  Detail & Related papers  (2020-03-20T12:14:10Z)
• Zitterbewegung and Klein-tunneling phenomena for transient quantum waves [77.34726150561087]
  We show that the Zitterbewegung effect manifests itself as a series of quantum beats of the particle density in the long-time limit. We also find a time-domain where the particle density of the point source is governed by the propagation of a main wavefront. The relative positions of these wavefronts are used to investigate the time-delay of quantum waves in the Klein-tunneling regime.
  arXiv  Detail & Related papers  (2020-03-09T21:27:02Z)
• Feynman Propagator for a System of Interacting Scalar Particles in the Fokker Theory [62.997667081978825]
  The functional integral on the generalized phase space is defined as the initial one in quantum theory. The measure of integration in the generalized configuration space of world particle lines is determined. A modification of the propagator is proposed, in which the role of independent time parameters is taken by the time coordinates of the particles in Minkowski space.
  arXiv  Detail & Related papers  (2020-02-10T09:09:45Z)
• Spectral Structure and Many-Body Dynamics of Ultracold Bosons in a Double-Well [0.0]
  We examine the spectral structure and many-body dynamics of two and three repulsively interacting bosons trapped in a one-dimensional double-well. We specifically explore the dynamical behaviour of the particles launched either at the single particle ground state or saddle point energy. We complement these results by a characterisation of the cross-over from diabatic to quasi-adiabatic evolution under finite-time switching of the potential barrier.
  arXiv  Detail & Related papers  (2020-02-03T19:00:10Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.