Библиотека института физики им. Л.В. Киренского СО РАН

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>K=clustering<.>)

Общее количество найденных документов : 9
Показаны документы с 1 по 9

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Zobov V. E., Pichkovskiy I. S.
Заглавие : Sequences of selective rotation operators for three group clustering on qutrits by means quantum annealing
Коллективы : "Micro- and Nano-Electronics", International Conference, "Микро- и наноэлектроника", международная конференция, Квантовая информатика, симпозиум, Российская академия наук, Физико-технологический институт имени К.А. Валиева РАН
Разночтения заглавия :Загл. обл.: IС "Micro- and Nanoelectronics" (ICMNE-2021) with the extended session “Quantum Informatics” (QI-2021)
Место публикации : Proceedings of the International Conference "Micro- and Nanoelectronics – 2021". ICMNE – 2021. - 2021. - Ст.q3-02. - P.149
Примечания : Cited References: 4
Материалы конференции,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Zobov V. E., Pichkovskiy I. S.
Заглавие : Sequences of selective rotation operators for three group clustering on qutrits by means of quantum annealing
Коллективы : International Conference on Micro- and Nano-Electronics
Место публикации : Proc. SPIE. - 2022. - Vol. 12157. - Ст.121571Z. - , DOI 10.1117/12.2622732
Примечания : Cited References: 25. - This work was supported by a grant from the Fund for the Development of Theoretical Physics and Mathematics "Basis" # 20-1-5-41-1
Аннотация: Recently, it was demonstrated that the clustering considered in this articlec, which consists in partitioning a set of data points into subsets depending on the proximity of some properties, can be performed using quantum annealing on a system of two-level quantum elements - qubits. In previous work, we proposed to pass from qubits to qutrits - three-level quantum elements showed the advantages of such a replacement and obtained a time-dependent effective Hamiltonian. In the present paper, we have found a sequence of selective rotation operators that allows one to realize adiabatic evolution with this effective Hamiltonian in the discrete-time approximation. On five qutrits, represented by spins S = 1, we performed a simulation of clustering a set of six points on a plane into three groups by means of quantum annealing.
Смотреть статью,
Scopus,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zobov V. E., Pichkovskiy I. S.
Заглавие : Clustering by quantum annealing on the three-level quantum elements qutrits
Место публикации : Quantum Inf. Process. - 2022. - Vol. 21, Is. 4. - Ст.144. - ISSN 15700755 (ISSN), DOI 10.1007/s11128-022-03482-0
Примечания : Cited References: 28. - This study was supported by the Theoretical Physics and Mathematics Advancement Foundation “BASIS” #20-1-5-41-1. We are grateful for their trust and assistance in research
Аннотация: Clustering is grouping of data by the proximity of some properties. We report on the possibility of increasing the efficiency of clustering of points in a plane using artificial quantum neural networks after the replacement of the two-level neurons called qubits represented by the spins S = 1/2 by the three-level neurons called qutrits represented by the spins S = 1. The problem has been solved by the slow adiabatic change of the Hamiltonian in time. The methods for controlling a qutrit system using projection operators have been developed and the numerical simulation has been performed. The Hamiltonians for two well-known clustering methods, one-hot encoding and k-means, have been built. The first method has been used to partition a set of six points into three or two clusters and the second method, to partition a set of nine points into three clusters and seven points into four clusters. The simulation has shown that the clustering problem can be effectively solved on qutrits represented by the spins S = 1. The advantages of clustering on qutrits over that on qubits have been demonstrated. In particular, the number of qutrits required to represent N data points is smaller than the number of qubits by a factor of log 2N/ log 3N. For qutrits, the simplest is to partition the data points into three clusters rather than two ones. At the data partition into more than three clusters, it has been proposed to number the clusters by the numbers of states of the corresponding multi-spin subsystems, instead of using the numbers of individual spins. This reduces even more the number of qutrits (Nlog 3K instead of NK) required to implement the algorithm.
Смотреть статью,
Scopus
Найти похожие

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Pichkovskiy I. S., Zobov V. E.
Заглавие : Implementation of adiabatic clustering quantum algorithm on system of five spins S = 1
Коллективы : "Micro- and nanoelectronics – 2023", International Conference
Место публикации : Proceedings of the International Conference "Micro- and Nanoelectronics – 2023": Book of abstracts. - 2023. - Ст.P1-19. - P.106
Примечания : Cited References: 2. - BASIS № 20-1-5-41-1
Материалы конференции,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Pichkovskiy I. S., Zobov V. E.
Заглавие : Clustering into three groups on a quantum processor of Ÿve spins S = 1, controlled by pulses of resonant RF Ÿelds
Коллективы : "Modern Development of Magnetic Resonance", International conference
Место публикации : Modern Development of Magnetic Resonance: abstracts int. conf./ ed. Salikhov K. M. - Kazan, 2022. - P.51
Примечания : Библиогр.: 2
Материалы конференции,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pichkovskiy I. S., Zobov V. E.
Заглавие : Clustering into three groups on a quantum processor of five spins S = 1, controlled by pulses of resonant RF fields
Место публикации : Appl. Magn. Reson. - 2023. - Vol. 54, Is. 7. - P.661-677. - ISSN 09379347 (ISSN), DOI 10.1007/s00723-023-01544-9. - ISSN 16137507 (eISSN)
Примечания : Cited References: 44. - This work funded by the Theoretical Physics and Mathematics Advancement Foundation “BASIS” #20-1-5-41-1
Аннотация: We consider a quantum processor based on five qutrits represented by spins S = 1, which is driven by radio frequency (RF) pulses selective in transitions between adjacent levels. Numerical simulation of the implementation of the quantum-adiabatic clustering algorithm was performed on the example of partitioning a set of six points into three groups. We find the amplitudes and durations of rectangular RF pulses, as well as the durations of free evolution intervals in the control pulse sequence, which made it possible to engineer a time-dependent effective Hamiltonian in the discrete-time approximation. Also we studied the dependence of the implementation fidelity on the parameters. We took quadrupole nuclei as qutrits, but the results obtained will be useful for controlling quantum processors based on qutrits represented by other systems.
Смотреть статью,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Malakhovskii Alexander, Sukhachev Alexander, Zabluda Vladimir, Edelman Irina
Заглавие : Magneto-Optical Properties and Clustering of Dy3+ ions in Oxide Glasses
Коллективы : International Conference on the Physics of Non-Crystalline Solids
Место публикации : 12th International Conference on the Physics of Non-Crystalline Solids (PNCS12): September 6–9, 2009, Foz do Iguaçu, PR, Brazil. - 2009. - С. 105
Найти похожие

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Shadrina G. V., Felk V. A., Komogortsev S. V.
Заглавие : Magnetic vortexes clustering in nanocrystalline magnetic film
Коллективы : Moscow International Symposium on Magnetism, Московский государственный университет им. М.В. Ломоносова, Российский фонд фундаментальных исследований
Место публикации : Moscow Int. Symp. on Magnet. (MISM-2017): 1-7 July 2017 : book of abstracts. - 2017. - Ст.2PO-J-29. - P.282
Материалы конференции,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kliava J., Berger R., Potseluyko A. A., Edelman I. S., Petrakovskaya E. A., Zarubina T.
Заглавие : Electron Paramagnetic Resonance and Gd3+ Clustering in the{xGd203-(1-x)(La203-Al203-B203-SiO2-GeO2)} Glasses
Место публикации : The Physics of Metals and Metallography. - 2006. - Vol. 102, Suppl. 1. - P.S39-S41. - DOI 10.1134/S0031918X06140092
Примечания : Библиогр.: 6. - Krasnoyarsk Regional Science Foundation (grant no. 12F0045C).
Аннотация: A multicomponent glass system 20La2O3–22Al2O3–23B23–35(SiO2+ GeO2) in which part of La2O3is substituted by Gd2O3 in different concentrations has been studied by EPR. The EPR spectra show the presence of clustering at higher Gd contents. At low temperatures, the cluster-related resonance signal is altered in shape, indicating the appearance of a magnetic anisotropy field.
Смотреть статью,
Читать в сети ИФ
Найти похожие