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APPROXIMATION: 作品数：1231被引量：1216H指数：13; 导出分析报告; 相关领域：理学更多>>; 相关作者：曹飞龙吴嘎日迪谢庭藩沈燮昌周颂平更多>>; 相关机构：北京大学宁夏大学西北工业大学中国计量学院更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金中国博士后科学基金更多>>

Discrimination of coherent states via atom–field interaction without rotation wave approximation: 《Communications in Theoretical Physics》2023年第6期78-85,共8页Jin-Hua Zhang Fu-Lin Zhang Mai-Lin Liang Zhi-Xi Wang Shao-Ming Fei; funded by the NSF of China(Grant Nos.11675119,12075159,11575125,12171044);Shanxi Education Department Fund(2020L0543);Beijing Natural Science Foundation(Z190005);Academy for Multidisciplinary Studies,Capital Normal University;the Academician Innovation Platform of Hainan Province;the Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology(No.SIQSE202001); Quantum state discrimination is an important part of quantum information processing.We investigate the discrimination of coherent states through a Jaynes-Cummings(JC)model interaction between the field and the ancilla...; 关键词：state discrimination Jaynes-Cummings model rotation wave approximation

Co-,Fe-,Ni-doped and co-doped rutile GeO_(2):insights from ab-initio calculations: 《Communications in Theoretical Physics》2022年第4期113-126,共14页R Essajai E Salmani M Bghour A Labrag F Goumrhar M Fahoume H Ez-Zahraouy; Rutile germanium oxide(rutile GeO_(2)),a semiconductor,can act as a half-metallic compound and is a promising material for spintronic and optoelectronic applications.Calculations were performed using the Korringa–Koh...; 关键词：LDA approximation SPINTRONIC Curie temperature spin polarization LDA-SIC approximation rutile germanium oxide

The Lindblad and Redfield forms derived from the Born–Markov master equation without secular approximation and their applications: 《Communications in Theoretical Physics》2021年第9期68-78,共11页Chang-Yao Liao Xian-Ting Liang; In this paper,we derive the Lindblad and Redfield forms of the master equation based on the Born–Markov master equation with and without the secular approximation for open multi-level quantum systems.The coefficients...; 关键词：Master equation secular approximation Redfield form Lindblad form

Padé approximations of quantized-vortex solutions of the Gross–Pitaevskii equation: 《Communications in Theoretical Physics》2021年第8期171-181,共11页Weiru Chen Shanquan Lan Xiyi Liu Jiexiong Mo Xiaobao Xu Guqiang Li; Undergraduate Innovation and Entrepreneurship Program Grant No.S201910579797;National Natural Science Foundation of China with Grant No.12005088,11847001,11747017;Guangdong Basic and Applied Basic Research Foundation with Grant No.2021A1515010246;supported by the Lingnan Normal University Project with Grant No.YL20200203,ZL1930。; Quantized vortices are important topological excitations in Bose–Einstein condensates. The Gross–Pitaevskii equation is a widely accepted theoretical tool. High accuracy quantized-vortex solutions are desirable in m...; 关键词：Gross-Pitaevskii equation Padéapproximation quantized-vortex solution

Breather-induced quantised superfluid vortex filaments and their characterisation: 《Communications in Theoretical Physics》2020年第7期132-140,共9页Hao Li Chong Liu Wei Zhao Zhan-Ying Yang Wen-Li Yang; the National Natural Science Foundation of China(NSFC)(Grant Nos.11705145,11875220,11947301,11434013,and 11425522);Natural Science Basic Research Plan in Shaanxi Province of China(Grant No.2018JQ1003);the Major Basic Research Program of Natural Science of Shaanxi Province(Grant Nos.2017KCT-12,2017ZDJC-32)。; We study and characterise the breather-induced quantised superfluid vortex filaments which correspond to the Kuznetsov-Ma breather and super-regular breather excitations developing from localised perturbations.Such vo...; 关键词：vortex filament loop structure local induction approximation Kuznetsov-Ma breather super-regular breather

Metastability in the Spin-1 Blume–Emery–Griffiths Model within Constant Coupling Approximation: 《Communications in Theoretical Physics》2017年第2期192-196,共5页C.Ekiz; In this paper, the equilibrium properties of spin-1 Blume–Emery–Griffiths model are studied by using constant-coupling approximation. The dipolar and quadrupolar order parameters, the stable, metastable and unstable...; 关键词：Blume–Emery–Griffiths model metastable states critical phenomena constant-coupling approximation

Nonlinear Interaction of Elliptical Laser Beam with Collisional Plasma：Effect of Linear Absorption被引量：1: 《Communications in Theoretical Physics》2016年第1期78-82,共5页keshav walia sarabjit kaur; In the present work,nonlinear interaction of elliptical laser beam with collisional plasma is studied by using paraxial ray approximation.Nonlinear differential equations for the beam width parameters of semi-major ax...; 关键词：elliptical laser beam paraxial ray approximation absorption coefficient plasma density

The Effect of Spin-Orbit Coupling and Spin-Spin Coupling of Compact Binaries on Chaos: 《Communications in Theoretical Physics》2015年第8期159-165,共7页王洪黄国庆; Supported by the Natural Science Foundation of China under Grant Nos.11173012; There are spin-orbit interaction and spin-spin interaction in a generic post-Newtonian Lagrangian formulation of comparable mass spinning compact binaries. The spin-orbit coupling or the spin-spin coupling plays a qui...; 关键词：COMPACT BINARIES post-Newtonian APPROXIMATION SPIN

Asymmetric Coupling in Two-Lane Asymmetric Simple Exclusion Processes with Unequal Injection Rates: Effect of Different Hoping Rates: 《Communications in Theoretical Physics》2015年第5期581-587,共7页肖松陈晓瑜刘艳娜; Supported by National Natural Science Foundation of China under Grant No.21301079; This paper investigates the effect of both unequal injection rates and different hopping rates on two-lane asymmetric simple exclusion processes(ASEPs) with asymmetric coupling. When the hopping rates of both lanes ar...; 关键词：asymmetric simple exclusion processes unequal injection rates different hoping rates mean fieldapproximation Monte Carlo simulations

Hard-Core Bosons on a Two-Dimensional Square Optical Superlattice: 《Communications in Theoretical Physics》2015年第3期308-316,共9页李晓娟文渝川; Supported by the National Natural Science Foundation of China under Grant Nos.10904096,10604024,11474025;the Natural Science Foundation of Beijing under Grant No.1092009; In this work,we theoretically study hard-core bosons on a two-dimensional square optical superlattice at T = 0.First of all,we present the mean field phase diagram of this model in terms of the chemical potential μ a...; 关键词：hard-core bosons spin-wave approximation

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