Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh最新文献_第9页

THE TOBOLSK PERIOD IN THE HISTORY OF THE OLD BELIEVERS WITHDRAWN FROM POLAND (THE 1760S). PART I. PREPARATION AND BEGINNING OF THE FORMATION OF THE SELENGINSKY INFANTRY REGIMENT 旧信徒的托博尔斯克时期退出了波兰(18世纪60年代)。第一部分:塞林斯基步兵团的准备和开始编制

Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh Pub Date : 2023-01-01 DOI: 10.31554/2222-9175-2023-51-24-30

E. V. Petrova, V. L. Petrov

引用次数: 0

PROMOTING CULTURAL AND EDUCATIVE AWARENESS AS A STEP IN THE SHAPING OF FAVORABILITY AMONG MUSLIMS OF TURKESTAN TOWARDS THE SOVIET GOVERNMENT DURING THE 1918–1924 在1918-1924年期间，促进文化和教育意识是塑造土耳其斯坦穆斯林对苏联政府好感的一步

Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh Pub Date : 2023-01-01 DOI: 10.31554/2222-9175-2023-51-68-74

V. A. Barmin

引用次数: 0

Topological phases in solid state physics 固体物理中的拓扑相

Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh Pub Date : 2023-01-01 DOI: 10.4213/im9349

Армен Глебович Сергеев, Armen Glebovich Sergeev, Егор Александрович Тепляков, Egor Teplyakov

引用次数: 0

Discrete symmetries of dynamics equations with polynomial integrals of higher degrees 具有高次多项式积分的动力学方程的离散对称性

Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh Pub Date : 2023-01-01 DOI: 10.4213/im9378

Валерий Васильевич Козлов, Valery Vasil'evich Kozlov

{"title":"Discrete symmetries of dynamics equations with polynomial integrals of higher degrees","authors":"Валерий Васильевич Козлов, Valery Vasil'evich Kozlov","doi":"10.4213/im9378","DOIUrl":"https://doi.org/10.4213/im9378","url":null,"abstract":"Рассматриваются системы с торическим конфигурационным пространством и кинетической энергией в виде \"плоской\" римановой метрики на торе. Потенциальная энергия $V$ - гладкая функция на конфигурационном торе. Динамика таких систем описывается \"натуральными\" гамильтоновыми системами дифференциальных уравнений. Если заменить $V$ на $varepsilon V$, где $varepsilon$ - малый параметр, то исследование таких гамильтоновых систем при малых значениях $varepsilon$ относится к \"основной проблеме динамики\" по Пуанкаре. Обсуждается известная гипотеза об однозначных полиномиальных по импульсам интегралах уравнений движения: если имеется полиномиальный по импульсам интеграл степени $m$, то обязательно найдется линейный или квадратичный по импульсам первый интеграл. Эта гипотеза полностью доказана для $m=3$ и $m=4$. Обсуждаются случаи \"высших\" степеней, когда $m=5$ и $m=6$. Следуя теории возмущений гамильтоновых систем, вводятся резонансные прямые на плоскости импульсов. Если система допускает полиномиальный интеграл, то число этих прямых конечно. Найдены симметрии множества резонансных прямых, что дает, в частности, необходимые условия интегрируемости. Получены некоторые новые критерии существования однозначных полиномиальных интегралов. Библиография: 11 наименований.","PeriodicalId":32542,"journal":{"name":"Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135801019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Vasilii Sergeevich Vladimirov 瓦西里-谢尔盖耶维奇-弗拉基米洛夫

Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh Pub Date : 2023-01-01 DOI: 10.4213/im9457

引用次数: 0

On optimization of coherent and incoherent controls for two-level quantum systems 二能级量子系统相干和非相干控制的优化

Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh Pub Date : 2023-01-01 DOI: 10.4213/im9372

Oleg Vasilevich Morzhin, Alexander Nikolaevich Pechen

{"title":"On optimization of coherent and incoherent controls for two-level quantum systems","authors":"Oleg Vasilevich Morzhin, Alexander Nikolaevich Pechen","doi":"10.4213/im9372","DOIUrl":"https://doi.org/10.4213/im9372","url":null,"abstract":"This article considers some control problems for closed and open two-level quantum systems. The closed system's dynamics is governed by the Schrödinger equation with coherent control. The open system's dynamics is governed by the Gorini-Kossakowski-Sudarshan-Lindblad master equation whose Hamiltonian depends on coherent control and superoperator of dissipation depends on incoherent control. For the closed system, we consider the problem for generation of the phase shift gate for some values of phases and final times for which we numerically show that zero coherent control, which is a stationary point of the objective functional, is not optimal; it gives an example of subtle point for practical solving quantum control problems. The two-stage method, which was developed in [A. Pechen, Phys. Rev. A., 84, 042106 (2011)] for generic $N$-level open quantum systems for approximate generation of a given target density matrix, is modified here for the case of two-level systems. We modify the first (\"incoherent\") stage by numerically optimizing piecewise constant incoherent control instead of using constant incoherent control analytically computed using eigenvalues of the target density matrix. Exact analytical formulas are derived for the system's state evolution, the objective functions and their gradients for the modified first stage. These formulas are then applied in the two-step gradient projection method. The numerical simulations show that the modified first stage's duration can be significantly less than the unmodified first stage's duration, but at the cost of performing optimization in the class of piecewise constant controls. Bibliography: 72 titles.","PeriodicalId":32542,"journal":{"name":"Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135801289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MODERNIZATION, MONGOLIAN STYLE: INTERSECTION OF THE PARALLELS 现代化，蒙古风格:平行交集

Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh Pub Date : 2023-01-01 DOI: 10.31554/2222-9175-2023-51-164-168

L. V. Kalmina

引用次数: 0

100 YEARS OF HISTORY. TOWARD THE ANNIVERSARY OF THE REPUBLIC 100年的历史。临近共和国成立一周年

Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh Pub Date : 2023-01-01 DOI: 10.31554/2222-9175-2023-51-16-23

B. V. Bazarov, M. N. Baldano

引用次数: 0

Operator-norm Trotter product formula on Banach spaces Banach空间上的算子-范数Trotter积公式

Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh Pub Date : 2023-01-01 DOI: 10.4213/im9370

Valentin Anatol'evich Zagrebnov

引用次数: 0

MERCHANTS OF TRANSBAIKALIA IN THE CONTEXT OF NORMATIVE REGULATION OF TRADE IN THE RUSSIAN EMPIRE IN THE 18TH AND 19TH CENTURIES 18世纪和19世纪俄罗斯帝国贸易规范背景下的跨贝加尔湖商人

Izvestiia Sibirskogo otdeleniia sektsii nauk o Zemle Rossiiskoi akademii estestvennykh nauk Geologiia razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh Pub Date : 2023-01-01 DOI: 10.31554/2222-9175-2023-51-31-37

T. S. Breslavskaya

引用次数: 0