Dynamical hadron formation in long-range interacting quantum spin chains

Abstract

The study of confinement in quantum spin chains has seen a large surge of interest in recent years. It is not only important for understanding a range of effective one-dimensional condensed matter realizations, but also shares some of the non-perturbative physics with quantum chromodynamics (QCD) which makes it a prime target for current quantum simulation efforts. In analogy with QCD, the confinement-induced two-particle boundstates that appear in these models are dubbed mesons. Here, we study scattering events due to meson collisions in a quantum spin chain with long-range interactions such that two mesons have an extended interaction. We show how novel hadronic boundstates, e.g. with four constituent particles akin to tetraquarks, may form dynamically in fusion events. In a natural collision their signal is weak as elastic meson scattering dominates. However, we propose two controllable protocols which allow for a clear observation of dynamical hadron formation. We discuss how this physics can be simulated in trapped ion or Rydberg atom set-ups.

10 + 5 pages, 7 + 4 figures

References in corpus (9)

• Probing many-body dynamics on a 51-atom quantum simulator
• Observation of mesoscopic crystalline structures in a two-dimensional Rydberg gas
• Dynamical crystallization in a low-dimensional Rydberg gas
• Designing Frustrated Quantum Magnets with Laser-Dressed Rydberg Atoms
• Transverse-Field Ising Dynamics in a Rydberg-Dressed Atomic Gas
• Prethermalization and Persistent Order in the Absence of a Thermal Phase Transition
• Single-Atom Addressing in Microtraps for Quantum-State Engineering using Rydberg Atoms
• Confinement in the q-state Potts field theory
• Baryon masses in the three-state Potts field theory in a weak magnetic field

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• Soliton Confinement in a Quantum Circuit
• Critical behavior of Ising model by preparing thermal state on quantum computer
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• Confined Meson Excitations in Rydberg-Atom Arrays Coupled to a Cavity Field
• Exploring Two-dimensional Coherent Spectroscopy with Exact Diagonalization: Spinons and Confinement in 1D Quantum Magnets
• Quantum Simulation of Bound State Scattering
• Decay of long-lived oscillations after quantum quenches in gapped interacting quantum systems
• Out-of-equilibrium scaling behavior arising during round-trip protocols across a quantum first-order transition
• A quantum information perspective on meson melting
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• Spectroscopic evidence for engineered hadron formation in repulsive fermionic $\text{SU}(N)$ Hubbard Models
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• Meson dynamics from locally exciting a particle-conserving $Z_2$ lattice gauge theory