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观八大山人绘画中的“怪诞”与“孤冷”形式 被引量:1
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作者 张静 《美与时代(美术学刊)(中)》 2021年第1期41-42,共2页
八大山人把中国文人写意花鸟画推向了发展的顶点。文章依据八大山人的个人经历和哲学思想,观其绘画作品中的"怪诞"和"孤冷",尝试从时空的推演和运动中多角度感受和理解八大山人的绘画作品,基于八大山人的绘画思想... 八大山人把中国文人写意花鸟画推向了发展的顶点。文章依据八大山人的个人经历和哲学思想,观其绘画作品中的"怪诞"和"孤冷",尝试从时空的推演和运动中多角度感受和理解八大山人的绘画作品,基于八大山人的绘画思想和精神世界分析其绘画作品。 展开更多
关键词 八大山人 “怪诞” “孤冷”
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Statics characteristics of two Bose-Einstein condensate dark solitons trapped in an optical lattice 被引量:2
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作者 CHENG Yong-shan GONG Rong-zhou LI Hong 《Optoelectronics Letters》 EI 2006年第3期233-236,共4页
The statics characteristics of two coupled Bose-Einstein condensate (BEC) dark solitons trapped in an optical lattice are investigated with the variational approach.It is found that the interaction between a ‘kink’ ... The statics characteristics of two coupled Bose-Einstein condensate (BEC) dark solitons trapped in an optical lattice are investigated with the variational approach.It is found that the interaction between a ‘kink’ and an ‘anti-kink’ with opposite phase gradients is effectively repulsive, and the optical lattice can be controllably used to produce a pair of static BEC dark solitons.Its effect depends on the initial location of the BEC dark solitons, the lattice amplitude and wave number. 展开更多
关键词 精力学 凝物 立子 光学格子
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Controlling the Collision Between Two Solitons in a Two-Component Condensate by Interspecies Interactions 被引量:1
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作者 张志强 王登龙 +1 位作者 罗晓清 丁建文 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第9期440-444,共5页
We present a family of the solutions of two-component Bose-Einstein condensates with time-dependentscattering length by means of multiple-scale method.Our numerical calculations show that the collision properties (the... We present a family of the solutions of two-component Bose-Einstein condensates with time-dependentscattering length by means of multiple-scale method.Our numerical calculations show that the collision properties (theposition,the time,and the frequency of the collision) between two solitons can be controlled by the time-dependentinterspecies scattering length.Meanwhile,we also find that the amplitude of the solitons is close related to the timedependentinterspecies scattering length. 展开更多
关键词 Bose Einstein condensate SOLITON interspecies scattering length
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Two-Dimensional Soliton Interaction for Multi-component Bose-Einstein Condensates
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作者 LI Sheng-Chang DUAN Wen-Shan 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第9期655-660,共6页
For two-component disk-shaped Bose-Einstein condensates with repulsive atom-atom interaction, the small amplitude, finite and long wavelength nonlinear waves can be described by a Kadomtsev-Petviashvili-Ⅰ equation at... For two-component disk-shaped Bose-Einstein condensates with repulsive atom-atom interaction, the small amplitude, finite and long wavelength nonlinear waves can be described by a Kadomtsev-Petviashvili-Ⅰ equation at the lowest order from the originai coupled Gross-Pitaevskii equations. One- and two-soliton solutions of the Kadomtsev- Petviashvili-1 equation are given, therefore, the wave functions of both atomic gases are obtained as well. The instability of a soliton under higher-order long wavelength disturbance has been investigated. It is found that the instability depends on the angle between two directions of both soliton and disturbance. 展开更多
关键词 Bose-Einstein condensate soliton interaction INSTABILITY
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Dynamics of Periodic Waves in Bose-Einstein Condensate with Time-Dependent Atomic Scattering Length
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作者 LI Hua-Mei 《Communications in Theoretical Physics》 SCIE CAS CSCD 2007年第1期63-68,共6页
Evolution of periodic waves and solitary waves in Bose-Einstein condensates (BECs) with time-dependent atomic scattering length in an expulsive parabolic potential is studied. Based on the mapping deformation method... Evolution of periodic waves and solitary waves in Bose-Einstein condensates (BECs) with time-dependent atomic scattering length in an expulsive parabolic potential is studied. Based on the mapping deformation method, we successfully obtain periodic wave solutions and solitary wave solutions, including the bright and dark soliton solutions.The results in this paper include some in the literatures [Phys. Rev. Lett. 94 (2005) 050402 and Chin. Phys. Left. 22 (2005) 1855]. 展开更多
关键词 Gross-Pitaevskii equation periodic wave time-dependent atomic scattering length mapping deformation method
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Ultra-slow Bright and Dark Optical Solitons in Cold Media 被引量:1
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作者 YANG Xiao-Xue WU Ying 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第2期335-342,共8页
We present a systematic study on the formation of ultra-slow bright and dark optical solitons in highly resonant media. By investigating four life-time broadened atomic systems, i.e., three-state A-type and cascade-ty... We present a systematic study on the formation of ultra-slow bright and dark optical solitons in highly resonant media. By investigating four life-time broadened atomic systems, i.e., three-state A-type and cascade-type schemes, and four-state N-type and cascade-type schemes, we show that the formation of such ultra-slow solitons in cold atomic systems is a fairly universal phenomenon. 展开更多
关键词 ultra-slow and super-luminal propagation electromagnetically induced transparency SOLITONS
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