Publication:
Phase estimation algorithm for quantum states classification with NISQ devices

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W3037649077.pdf(782.41 KB)
Дата
2020
Авторы
Babukhin, D.
Pogosov, W.
Zhukov, A.
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Научные группы
Организационные подразделения
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Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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Аннотация
© 2020 Author(s).Methods of processing quantum data become more important as quantum computing devices improve their quality towards fault tolerant universal quantum computers. These methods include discrimination and filtering of quantum states given as an input to the device that may find numerous applications in quantum information technologies. In the present paper, we address a scheme of a classification of input states, which is nondestructive and deterministic for certain inputs, while probabilistic, in general case. This can be achieved by incorporating phase estimation algorithm into the hybrid quantum-classical computation scheme, where quantum block is trained classically. We perform proof-of-principle implementation of this idea using superconducting quantum processor of IBM Quantum Experience. Another aspect we are interested in is a mitigation of errors occurring due to the quantum device imperfections. We apply a series of heuristic tricks at the stage of classical postprocessing in order to improve raw experimental data and to recognize patterns in them. These ideas may find applications in other realization of hybrid quantum-classical computations with noisy quantum machines.
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Babukhin, D. Phase estimation algorithm for quantum states classification with NISQ devices / Babukhin, D., Pogosov, W., Zhukov, A. // AIP Conference Proceedings. - 2020. - 2241. - 10.1063/5.0011373
URI
https://www.doi.org/10.1063/5.0011373
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85087751445&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000598336500005
 https://openrepository.mephi.ru/handle/123456789/22034
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