soliton 中文意思是什麼

soliton 解釋
孤波
  1. Abstract : considering the second nearest - neighbor interaction and cubic, quartic anharmonic interactions simultaneously, we employ the multiple scales method combined with a quasidiscreteness approximation to calculate the lattice vibration. it is shown that the kind of nonlinear chain exhibits envelope soliton, envelope kink and envelope antikink soliton. these results can also be used to explain the experimental phenomena that the kink amplitude of the self - localized structure is determined only by the intrinsic properties of its lattices

    文摘:同時考慮次近鄰諧振相互作用和三次方、四次方非諧相互作用,利用多重尺度結合準離散近似方法去計算晶格振動行為,發現一維非線性點陣中存在包絡孤子及正扭結型包絡孤子、反扭結型包絡孤子,解釋了自局域結構的幅度只取決于點陣中的固有參數的實驗現象
  2. A dark - soliton perturbation theory on the defocusing nonlinear schr dinger equation

    方程的暗孤子微擾理論
  3. There has been a revolutionary advance in ultrashort pulse technology since the discovery of self - mode locking of ti : sapphire lasers. few - femtosecond pulses have already been generated from ti : sapphire lasers, by means of combining self - phase modulation with negative group velocity dispersion, which is similar to the way of soliton generation

    鈦寶石激光自鎖模的發現使得超短脈沖技術發生了革命性的變化,利用自相位調制和負群速度色散結合的類孤子產生方式,人們已經在鈦寶石鎖模激光器上得到了脈寬只有幾個飛秒的光脈沖。
  4. Interaction of spatial soliton in two - dimensional optical saturable latices

    二維光學吸收晶格中空間孤子的相互作用
  5. Exact travelling wave solutions and concave or convex peaked and smooth soliton solutions of camassa - holm equation

    方程的精確行波解及其凹凸尖峰與光滑孤立子解
  6. The study of the soliton - effect compression of chirped pulse in optical fibers with the method of split - step fourier

    採用分步傅立葉方法研究初始啁啾脈沖的孤子效應壓縮
  7. The centre of the dark sector soliton evolution equation is derived by means of particle analytical method, equivalent form dark soliton ' s evolution equation in the photorefractive crystal, esceptialy between tow dark soliton ; the potential expression and it ' s numerically calculation is achieved, the conclusion is drawn : when the distance between two dark soliton = 0, its potential function has minimum, shows there is an stead soliton in the photorefractive maternal, and interaction between two dark soliton raches biggest ; when the distance between two dark soliton 5, its potential function is nearly equal zero, shows that the interaction between two lark soliton is very weak, nearly zero

    摘要本文從光折變晶體中能得出暗孤子所滿足的演化方程出發,用粒子分析力法得出了兩暗孤子相互作用時,其質心間的距離所滿足的演化方程,並得出了兩暗孤子相互作用勢函數的表達式,得到其數值解,並得出如下結論:當兩暗孤子間距離= 0時,其相互作用勢函數有最小值,表示在光折變晶體中有穩定的暗孤子對,並且相互作用達到最大;當兩暗孤子距離5時,其相互作用勢函數幾乎為零,表示兩暗孤子間相互作用很弱,幾乎為零。
  8. Three non - spherical symmetry dibaryon chiral soliton in skyrme model

    模型的3個非球對稱雙重子手征孤子
  9. The equation including the nonlinear dispersion, i. e. the modified nonlinear schrodinger ( mnls ) equation, is a better model. in this thesis, we take mnls solitons as a model for femtosecond soltions. then based on the recently developed direct perturbation theory for perturbed mnls equation, we study the raman self - frequency shift of femtosecond solitons and its suppression by the means of frequency filters. for this purpose, first, we define the physical parameters of mnls solitons ; next, through the direct perturbation theory for perturbed mnls equation, under adiabatic approximation, we obtain the evolving parameters of mnls soliton on our questions and then choose the parameters of frequency filters based on it ; at last, we directly numerically simulated our questions by split - step fourier ( ssf ) method after improving the arithmetic of the differentiation of the nonlinear item for satisfying mnls equation

    本論文以mnls孤子作為光纖飛秒孤子的模型,通過新近建立的mnls孤子直接微擾理論,研究光纖中由拉曼效應引起的飛秒孤子在傳輸中的自頻移,以及通過頻率濾波對自頻移的抑制。為此,首先給出描述mnls孤子的各物理量,然後用mnls孤子直接微擾理論,解析地得到這些問題絕熱近似下的孤子參數演化,並由此選擇頻率濾波的參數,最後用分步傅里葉方法,在對非線性項微商的演算法做出了適合於mnls孤子的改善後,對拉曼效應及頻率濾波進行了直接數值模擬,其中頻率濾波參數用微擾理論確定。
  10. In chapter three, we in - troduce the homogeneous balance method and improve some key steps in it, then by using this method we are able to obtain mul - tiple soliton solutions of some nonlinear partial differential equa - tions

    第三章,討論了利用齊次平衡法求解非線性方程孤子解的問題,並對其一個關鍵步驟進行改進,使其能夠求解非線性方程的多孤子解。
  11. Effect of initial chirp on femtosecond soliton transmission in fiber

    初始啁啾對光纖中傳播的飛秒光孤子的影響
  12. Under the condition that the beam is chirped, demands for soliton formation from gauss beam and the evolution equations of the beam chirp in the propagation are obtained

    我們得到了在光束具有線性空間啁啾的條件下高斯光束形成孤子的條件以及傳輸過程中光束啁啾的演化方程。
  13. The propagation and control of soliton in nonlinear kerr optical lattice with harmonic modulation of refractive index are investigated analytically and numerically in this paper. and some innovative research results have been worked out. the forming conditions of lattice soliton from gauss beam and the two modes of its stable propagation are obtained for the first time

    本文利用解析和數值方法研究了在具有橫向折射率周期性調制的克爾型非線性光學格子中孤子的傳輸和控制,做出了一些創新性的研究結果:首次得出了高斯光束形成格子孤子的條件和兩種穩定傳輸形式。
  14. This paper is to study harmonic maps into symplectic groups and local isometric immersions into space forms by means of the soliton theory. by realizing an action of the rational loop group on the spaces of corrsponding solutions, we get the backlund transformation and the darboux transformation, and thereby we give the explicit construction for harmonic maps into symplectic groups and local isometric immersions into space forms via purely algebraic algorithm

    主要用孤立子理論研究到辛群的調和映射和到空間形式的局部等距浸入,通過有理loop群在其解空間上的dressing作用,給出b icklund變換和darboux變換的顯式表示,從而獲得到辛群及其對稱空間的調和映射和到空間形式的局部等距浸入的純代數構造方法。
  15. Soliton dynamics is simulated for trans - polyacetylene single - chain systems using the su - schrieffer - heeger ( ssh ) model with an additional part to include an external electric field

    摘要對于有電場存在下的反式聚乙炔單鏈中的孤子運動,用ssh模型引入電場項,通過數值計算,對孤子在電場下的運動規律進行了模擬。
  16. Our results show that pmd induces pulse broadening randomly in high bit - rate optical fiber communications ; the synchronous amplitude modulation control may correct directly any position change of timing jitter and soliton interaction, so the transmission distance and pulse quality will increase further

    研究結果表明對于高速率傳輸系統, pmd對脈沖的影響在時域上表現為脈沖形狀的展寬,這種展寬是隨機的;而同步幅度調制是在時域上,將發生形變的脈沖通過振幅調制,恢復原形,從而提高脈沖的傳輸性能。
  17. Based on the guidemode characters of dark spatial soliton waveguides and the theory of coupling between two waveguides, a kind of steerable all - optical directional coupler using dark spatial soliton waveguides is suggested

    摘要基於空間暗光孤子誘導波導的模式特性以及光波在波導間耦合理論,提出了一種實現光控可變定向耦合器的方法。
  18. On the basis of the second and third chapters, we study the hyperradiation from soliton in chaotic state in the last chapter

    在第二章和第三章的基礎上,第四章主要研究混沌狀態下孤子的輻射功率問題。
  19. We find that a gate voltage on a gate capacitor will excite a potential distribution similar to that of a single charge soliton. we call it a static potential soliton. what " s important is that the profile of such a soliton can be changed proportionally and continuously

    我們發現給一個門電容加上門電壓將會在結鏈中激發一個類似於單電荷孤子的電勢分佈,並將其稱為靜電勢孤子,只是這種孤子的輪廓可以成任意比例地連續變化。
  20. For a warm dusty plasma with variable dust charge, the modulational instability of the dust - acoustic waves can be described by the nonlinear schrodinger equation ( iut 4 - auxx + b | u | 2u = 0 ). it shows that the dust - acoustic wave is modulational stable in this dusty plasma. only the dark soliton exists in warm dusty plasma with variable dust charge

    通過約化攝動法,得到了描述塵埃微粒電荷可變的熱塵埃等離子體中塵埃聲波的非線性薛定諤方程( iu _ t + u _ ( xx ) + | u | ~ 2u = 0 ) ,不論是單離子溫度情形,還是兩離子溫度情形,塵埃微粒電荷可變的熱塵埃等離子體中的塵埃聲波是調制穩定的,僅存在暗孤子(包絡穴)
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