Quantum Information Scrambling on a Superconducting Qutrit Processor

The dynamics of quantum information in strongly interacting systems, known as quantum information scrambling, has recently become a common thread in our understanding of black holes, transport in exotic non-Fermi liquids, and many-body analogs of quantum chaos. To date, verified experimental impleme...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	M. S. Blok, V. V. Ramasesh, T. Schuster, K. O’Brien, J. M. Kreikebaum, D. Dahlen, A. Morvan, B. Yoshida, N. Y. Yao, I. Siddiqi
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/f976c6d5389b4ac7a17da72600b59737
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:f976c6d5389b4ac7a17da72600b59737
record_format	dspace
spelling	oai:doaj.org-article:f976c6d5389b4ac7a17da72600b597372021-12-02T14:26:44ZQuantum Information Scrambling on a Superconducting Qutrit Processor10.1103/PhysRevX.11.0210102160-3308https://doaj.org/article/f976c6d5389b4ac7a17da72600b597372021-04-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.021010http://doi.org/10.1103/PhysRevX.11.021010https://doaj.org/toc/2160-3308The dynamics of quantum information in strongly interacting systems, known as quantum information scrambling, has recently become a common thread in our understanding of black holes, transport in exotic non-Fermi liquids, and many-body analogs of quantum chaos. To date, verified experimental implementations of scrambling have focused on systems composed of two-level qubits. Higher-dimensional quantum systems, however, may exhibit different scrambling modalities and are predicted to saturate conjectured speed limits on the rate of quantum information scrambling. We take the first steps toward accessing such phenomena, by realizing a quantum processor based on superconducting qutrits (three-level quantum systems). We demonstrate the implementation of universal two-qutrit scrambling operations and embed them in a five-qutrit quantum teleportation protocol. Measured teleportation fidelities F_{avg}=0.568±0.001 confirm the presence of scrambling even in the presence of experimental imperfections and decoherence. Our teleportation protocol, which connects to recent proposals for studying traversable wormholes in the laboratory, demonstrates how quantum technology that encodes information in higher-dimensional systems can exploit a larger and more connected state space to achieve the resource efficient encoding of complex quantum circuits.M. S. BlokV. V. RamaseshT. SchusterK. O’BrienJ. M. KreikebaumD. DahlenA. MorvanB. YoshidaN. Y. YaoI. SiddiqiAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 2, p 021010 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 M. S. Blok V. V. Ramasesh T. Schuster K. O’Brien J. M. Kreikebaum D. Dahlen A. Morvan B. Yoshida N. Y. Yao I. Siddiqi Quantum Information Scrambling on a Superconducting Qutrit Processor
description	The dynamics of quantum information in strongly interacting systems, known as quantum information scrambling, has recently become a common thread in our understanding of black holes, transport in exotic non-Fermi liquids, and many-body analogs of quantum chaos. To date, verified experimental implementations of scrambling have focused on systems composed of two-level qubits. Higher-dimensional quantum systems, however, may exhibit different scrambling modalities and are predicted to saturate conjectured speed limits on the rate of quantum information scrambling. We take the first steps toward accessing such phenomena, by realizing a quantum processor based on superconducting qutrits (three-level quantum systems). We demonstrate the implementation of universal two-qutrit scrambling operations and embed them in a five-qutrit quantum teleportation protocol. Measured teleportation fidelities F_{avg}=0.568±0.001 confirm the presence of scrambling even in the presence of experimental imperfections and decoherence. Our teleportation protocol, which connects to recent proposals for studying traversable wormholes in the laboratory, demonstrates how quantum technology that encodes information in higher-dimensional systems can exploit a larger and more connected state space to achieve the resource efficient encoding of complex quantum circuits.
format	article
author	M. S. Blok V. V. Ramasesh T. Schuster K. O’Brien J. M. Kreikebaum D. Dahlen A. Morvan B. Yoshida N. Y. Yao I. Siddiqi
author_facet	M. S. Blok V. V. Ramasesh T. Schuster K. O’Brien J. M. Kreikebaum D. Dahlen A. Morvan B. Yoshida N. Y. Yao I. Siddiqi
author_sort	M. S. Blok
title	Quantum Information Scrambling on a Superconducting Qutrit Processor
title_short	Quantum Information Scrambling on a Superconducting Qutrit Processor
title_full	Quantum Information Scrambling on a Superconducting Qutrit Processor
title_fullStr	Quantum Information Scrambling on a Superconducting Qutrit Processor
title_full_unstemmed	Quantum Information Scrambling on a Superconducting Qutrit Processor
title_sort	quantum information scrambling on a superconducting qutrit processor
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/f976c6d5389b4ac7a17da72600b59737
work_keys_str_mv	AT msblok quantuminformationscramblingonasuperconductingqutritprocessor AT vvramasesh quantuminformationscramblingonasuperconductingqutritprocessor AT tschuster quantuminformationscramblingonasuperconductingqutritprocessor AT kobrien quantuminformationscramblingonasuperconductingqutritprocessor AT jmkreikebaum quantuminformationscramblingonasuperconductingqutritprocessor AT ddahlen quantuminformationscramblingonasuperconductingqutritprocessor AT amorvan quantuminformationscramblingonasuperconductingqutritprocessor AT byoshida quantuminformationscramblingonasuperconductingqutritprocessor AT nyyao quantuminformationscramblingonasuperconductingqutritprocessor AT isiddiqi quantuminformationscramblingonasuperconductingqutritprocessor
_version_	1718391347160809472

Quantum Information Scrambling on a Superconducting Qutrit Processor

Ejemplares similares