Using quantum theory to simplify input–output processes

Responding to the environment is easier with quantum mechanics Can a quantum goldfish exhibit more complex behaviour than a classical dolphin? In complexity science, the complexity of an input-output process – a system that reacts differently when supplied with different environmental stimuli – can...

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Autores principales:	Jayne Thompson, Andrew J. P. Garner, Vlatko Vedral, Mile Gu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/1d03662fa8b2435988ed1aaa98030c99
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spelling	oai:doaj.org-article:1d03662fa8b2435988ed1aaa98030c992021-12-02T12:33:37ZUsing quantum theory to simplify input–output processes10.1038/s41534-016-0001-32056-6387https://doaj.org/article/1d03662fa8b2435988ed1aaa98030c992017-02-01T00:00:00Zhttps://doi.org/10.1038/s41534-016-0001-3https://doaj.org/toc/2056-6387Responding to the environment is easier with quantum mechanics Can a quantum goldfish exhibit more complex behaviour than a classical dolphin? In complexity science, the complexity of an input-output process – a system that reacts differently when supplied with different environmental stimuli – can be quantified by the minimal memory needed to reproduce the process’s observed behaviour. This reflects the intuition that a goldfish – that remembers very little – can only exhibit fairly simple input-output behaviour. Here we show how these ideas can radically change when generalized to the quantum domain. A quantum system may exhibit behaviour that appears considerably more complex than a classical system that has significantly more memory.Jayne ThompsonAndrew J. P. GarnerVlatko VedralMile GuNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 3, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
spellingShingle	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 Jayne Thompson Andrew J. P. Garner Vlatko Vedral Mile Gu Using quantum theory to simplify input–output processes
description	Responding to the environment is easier with quantum mechanics Can a quantum goldfish exhibit more complex behaviour than a classical dolphin? In complexity science, the complexity of an input-output process – a system that reacts differently when supplied with different environmental stimuli – can be quantified by the minimal memory needed to reproduce the process’s observed behaviour. This reflects the intuition that a goldfish – that remembers very little – can only exhibit fairly simple input-output behaviour. Here we show how these ideas can radically change when generalized to the quantum domain. A quantum system may exhibit behaviour that appears considerably more complex than a classical system that has significantly more memory.
format	article
author	Jayne Thompson Andrew J. P. Garner Vlatko Vedral Mile Gu
author_facet	Jayne Thompson Andrew J. P. Garner Vlatko Vedral Mile Gu
author_sort	Jayne Thompson
title	Using quantum theory to simplify input–output processes
title_short	Using quantum theory to simplify input–output processes
title_full	Using quantum theory to simplify input–output processes
title_fullStr	Using quantum theory to simplify input–output processes
title_full_unstemmed	Using quantum theory to simplify input–output processes
title_sort	using quantum theory to simplify input–output processes
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/1d03662fa8b2435988ed1aaa98030c99
work_keys_str_mv	AT jaynethompson usingquantumtheorytosimplifyinputoutputprocesses AT andrewjpgarner usingquantumtheorytosimplifyinputoutputprocesses AT vlatkovedral usingquantumtheorytosimplifyinputoutputprocesses AT milegu usingquantumtheorytosimplifyinputoutputprocesses
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Using quantum theory to simplify input–output processes

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