Confinement and entanglement dynamics on a digital quantum computer

Abstract Confinement describes the phenomenon when the attraction between two particles grows with their distance, most prominently found in quantum chromodynamics (QCD) between quarks. In condensed matter physics, confinement can appear in quantum spin chains, for example, in the one dimensional tr...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Joseph Vovrosh, Johannes Knolle
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
Materias:
R
Q
Acceso en línea:https://doaj.org/article/4cd603f8fa2e4e1fba62bbc800274609
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:4cd603f8fa2e4e1fba62bbc800274609
record_format dspace
spelling oai:doaj.org-article:4cd603f8fa2e4e1fba62bbc8002746092021-12-02T18:25:03ZConfinement and entanglement dynamics on a digital quantum computer10.1038/s41598-021-90849-52045-2322https://doaj.org/article/4cd603f8fa2e4e1fba62bbc8002746092021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90849-5https://doaj.org/toc/2045-2322Abstract Confinement describes the phenomenon when the attraction between two particles grows with their distance, most prominently found in quantum chromodynamics (QCD) between quarks. In condensed matter physics, confinement can appear in quantum spin chains, for example, in the one dimensional transverse field Ising model (TFIM) with an additional longitudinal field, famously observed in the quantum material cobalt niobate or in optical lattices. Here, we establish that state-of-the-art quantum computers have reached capabilities to simulate confinement physics in spin chains. We report quantitative confinement signatures of the TFIM on an IBM quantum computer observed via two distinct velocities for information propagation from domain walls and their mesonic bound states. We also find the confinement induced slow down of entanglement spreading by implementing randomized measurement protocols for the second order Rényi entanglement entropy. Our results are a crucial step for probing non-perturbative interacting quantum phenomena on digital quantum computers beyond the capabilities of classical hardware.Joseph VovroshJohannes KnolleNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Joseph Vovrosh
Johannes Knolle
Confinement and entanglement dynamics on a digital quantum computer
description Abstract Confinement describes the phenomenon when the attraction between two particles grows with their distance, most prominently found in quantum chromodynamics (QCD) between quarks. In condensed matter physics, confinement can appear in quantum spin chains, for example, in the one dimensional transverse field Ising model (TFIM) with an additional longitudinal field, famously observed in the quantum material cobalt niobate or in optical lattices. Here, we establish that state-of-the-art quantum computers have reached capabilities to simulate confinement physics in spin chains. We report quantitative confinement signatures of the TFIM on an IBM quantum computer observed via two distinct velocities for information propagation from domain walls and their mesonic bound states. We also find the confinement induced slow down of entanglement spreading by implementing randomized measurement protocols for the second order Rényi entanglement entropy. Our results are a crucial step for probing non-perturbative interacting quantum phenomena on digital quantum computers beyond the capabilities of classical hardware.
format article
author Joseph Vovrosh
Johannes Knolle
author_facet Joseph Vovrosh
Johannes Knolle
author_sort Joseph Vovrosh
title Confinement and entanglement dynamics on a digital quantum computer
title_short Confinement and entanglement dynamics on a digital quantum computer
title_full Confinement and entanglement dynamics on a digital quantum computer
title_fullStr Confinement and entanglement dynamics on a digital quantum computer
title_full_unstemmed Confinement and entanglement dynamics on a digital quantum computer
title_sort confinement and entanglement dynamics on a digital quantum computer
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/4cd603f8fa2e4e1fba62bbc800274609
work_keys_str_mv AT josephvovrosh confinementandentanglementdynamicsonadigitalquantumcomputer
AT johannesknolle confinementandentanglementdynamicsonadigitalquantumcomputer
_version_ 1718378039367172096