Surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities

Abstract The emergence of quantum technologies is heating up the debate on quantum supremacy, usually focusing on the feasibility of looking good on paper algorithms in realistic settings, due to the vulnerability of quantum systems to myriad sources of noise. In this vein, an interesting example of...

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Autores principales:	Sinan Bugu, Fatih Ozaydin, Tetsuo Kodera
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/85d6845817e6499abff58027bcd5e7b7
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spelling	oai:doaj.org-article:85d6845817e6499abff58027bcd5e7b72021-12-02T11:57:58ZSurpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities10.1038/s41598-020-79295-x2045-2322https://doaj.org/article/85d6845817e6499abff58027bcd5e7b72020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79295-xhttps://doaj.org/toc/2045-2322Abstract The emergence of quantum technologies is heating up the debate on quantum supremacy, usually focusing on the feasibility of looking good on paper algorithms in realistic settings, due to the vulnerability of quantum systems to myriad sources of noise. In this vein, an interesting example of quantum pseudo-telepathy games that quantum mechanical resources can theoretically outperform classical resources is the Magic Square game (MSG), in which two players play against a referee. Due to noise, however, the unit winning probability of the players can drop well below the classical limit. Here, we propose a timely and unprecedented experimental setup for quantum computation with quantum dots inside optical cavities, along with ancillary photons for realizing interactions between distant dots to implement the MSG. Considering various physical imperfections of our setup, we first show that the MSG can be implemented with the current technology, outperforming the classical resources under realistic conditions. Next, we show that our work gives rise to a new version of the game. That is, if the referee has information on the physical realization and strategy of the players, he can bias the game through filtered randomness, and increase his winning probability. We believe our work contributes to not only quantum game theory, but also quantum computing with quantum dots.Sinan BuguFatih OzaydinTetsuo KoderaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sinan Bugu Fatih Ozaydin Tetsuo Kodera Surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities
description	Abstract The emergence of quantum technologies is heating up the debate on quantum supremacy, usually focusing on the feasibility of looking good on paper algorithms in realistic settings, due to the vulnerability of quantum systems to myriad sources of noise. In this vein, an interesting example of quantum pseudo-telepathy games that quantum mechanical resources can theoretically outperform classical resources is the Magic Square game (MSG), in which two players play against a referee. Due to noise, however, the unit winning probability of the players can drop well below the classical limit. Here, we propose a timely and unprecedented experimental setup for quantum computation with quantum dots inside optical cavities, along with ancillary photons for realizing interactions between distant dots to implement the MSG. Considering various physical imperfections of our setup, we first show that the MSG can be implemented with the current technology, outperforming the classical resources under realistic conditions. Next, we show that our work gives rise to a new version of the game. That is, if the referee has information on the physical realization and strategy of the players, he can bias the game through filtered randomness, and increase his winning probability. We believe our work contributes to not only quantum game theory, but also quantum computing with quantum dots.
format	article
author	Sinan Bugu Fatih Ozaydin Tetsuo Kodera
author_facet	Sinan Bugu Fatih Ozaydin Tetsuo Kodera
author_sort	Sinan Bugu
title	Surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities
title_short	Surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities
title_full	Surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities
title_fullStr	Surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities
title_full_unstemmed	Surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities
title_sort	surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/85d6845817e6499abff58027bcd5e7b7
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Surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities

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