Quantum simulation of parity–time symmetry breaking with a superconducting quantum processor

In quantum physics, observables are generally believed to be Hermitian, but there are several examples of non-Hermitian systems possessing real positive eigenvalues, particularly among open systems. Here, the authors simulate the evolution of a non-Hermitian Hamiltonian on a superconducting quantum...

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Autores principales:	Shruti Dogra, Artem A. Melnikov, Gheorghe Sorin Paraoanu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Astrophysics QB460-466 Physics QC1-999
Acceso en línea:	https://doaj.org/article/41cf542248d04daaa9f377e7490e7cb8
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spelling	oai:doaj.org-article:41cf542248d04daaa9f377e7490e7cb82021-12-02T12:11:44ZQuantum simulation of parity–time symmetry breaking with a superconducting quantum processor10.1038/s42005-021-00534-22399-3650https://doaj.org/article/41cf542248d04daaa9f377e7490e7cb82021-02-01T00:00:00Zhttps://doi.org/10.1038/s42005-021-00534-2https://doaj.org/toc/2399-3650In quantum physics, observables are generally believed to be Hermitian, but there are several examples of non-Hermitian systems possessing real positive eigenvalues, particularly among open systems. Here, the authors simulate the evolution of a non-Hermitian Hamiltonian on a superconducting quantum processor using a dilation procedure involving an ancillary qubit, and observe the parity–time (PT)-symmetry breaking phase transition at the exceptional points.Shruti DograArtem A. MelnikovGheorghe Sorin ParaoanuNature PortfolioarticleAstrophysicsQB460-466PhysicsQC1-999ENCommunications Physics, Vol 4, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Astrophysics QB460-466 Physics QC1-999
spellingShingle	Astrophysics QB460-466 Physics QC1-999 Shruti Dogra Artem A. Melnikov Gheorghe Sorin Paraoanu Quantum simulation of parity–time symmetry breaking with a superconducting quantum processor
description	In quantum physics, observables are generally believed to be Hermitian, but there are several examples of non-Hermitian systems possessing real positive eigenvalues, particularly among open systems. Here, the authors simulate the evolution of a non-Hermitian Hamiltonian on a superconducting quantum processor using a dilation procedure involving an ancillary qubit, and observe the parity–time (PT)-symmetry breaking phase transition at the exceptional points.
format	article
author	Shruti Dogra Artem A. Melnikov Gheorghe Sorin Paraoanu
author_facet	Shruti Dogra Artem A. Melnikov Gheorghe Sorin Paraoanu
author_sort	Shruti Dogra
title	Quantum simulation of parity–time symmetry breaking with a superconducting quantum processor
title_short	Quantum simulation of parity–time symmetry breaking with a superconducting quantum processor
title_full	Quantum simulation of parity–time symmetry breaking with a superconducting quantum processor
title_fullStr	Quantum simulation of parity–time symmetry breaking with a superconducting quantum processor
title_full_unstemmed	Quantum simulation of parity–time symmetry breaking with a superconducting quantum processor
title_sort	quantum simulation of parity–time symmetry breaking with a superconducting quantum processor
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/41cf542248d04daaa9f377e7490e7cb8
work_keys_str_mv	AT shrutidogra quantumsimulationofparitytimesymmetrybreakingwithasuperconductingquantumprocessor AT artemamelnikov quantumsimulationofparitytimesymmetrybreakingwithasuperconductingquantumprocessor AT gheorghesorinparaoanu quantumsimulationofparitytimesymmetrybreakingwithasuperconductingquantumprocessor
_version_	1718394623099928576

Quantum simulation of parity–time symmetry breaking with a superconducting quantum processor

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