phase space density 中文意思是什麼
phase space density
解釋
相空間密度-
On the one hand, we deduce the off - diagonal term of reduced density matrix is inner - product of two coherent states and we carry out decoherence in macroscopic limits in two special case, on the other hand, we delay decoherent time by controlling the interaction coefficient. in other part, we define two kind independent phase operators by improving two - mode squeezing coherent states in two - mode phase space and resolve their eigenstates
在第二部分中，我們在雙模相位空間里利用雙模壓縮相干態所對應的算符定義二類獨立的相位算符並相應求出本徵態，而它的產生算符和湮滅算符是通過簡諧振子的產生算符和湮滅算符經過正則變換得到的。 -
The isospin effect and k production in intermediate and high energy heavy ion collisions ( hics ) are hot topics in the nuclear physics. based on the isospin - dependent quantum molecular dyanmics ( iqmd ) model and self - consistent relativistic boltzmann - uehling - uhlenbeck ( rbuu ) model, we have studied them and obtained some interesting results. as for the study of isospin in intermediate energy hics, we ' ve investigated how both stength ( q ) and density dependence of symmetry potential ( sp ) affect many measurable observables, such as the yield, phase - space, and isospin distributions of fragments, as well as the correlations between intermediate - mass - fragment ( imf ) multiplicity n and charged - particle multiplicity n, light - charged - particle ( lcp ) multiplicity n, and neutron multiplicity n,
在中能重離子碰撞的同位旋研究方面，分別研究了對稱勢的強度（ c _ s ）和其密度依賴形式對中能重離子核反應各類碎片產物產額、相空間、及其同位旋的分佈，中等質量碎片多重數（ n _ （ imf ） ）與帶電粒子多重數（ n _ c ） 、輕帶電粒子多重數（ n _ k ） 、中子多重數（ n _ n ）的關聯等多種實驗觀測量的影響，以獲取對稱勢中該兩方面的信息，尤其著重於研究如何分別獲取有關該兩方面的信息的途徑。 -
At the same time, it states the dominant industry for each district, and defines growth pole of beijing suburbs on the basis of density of dominant industry and economical level for each district. finally, the paper demonstrates that it is necessary to build economy growth pole model of beijing suburbs on the beginning of 21s1 century on analysis of relations among dominant industry, growth pole and economic growth point, discusses evolvement rules about pole - core space structure phase. point - axis space structure phase and network space structure phase, analyses which space structure phase beijing suburbs is in, and brings forward point - axis developing model, then explains definition of point - axis developing model and important meanings for economy development of beijing suburbs, referring to principle of point - axis developing model, the paper proposes economy growth point model, and offer the policy and suggestion for government corresponding to the problems of application of economy growth point model
最後，通過論述主導產業、增長極與經濟增長點的相互關系，闡述了從產業和地區角度對主導產業和增長極進行綜合分析以構建21世紀初北京郊區的經濟增長點模式的必要性，探討了極核式空間結構階段、點軸式空間結構階段、網路空間結構階段這三種空間結構的演變規律，分析了21世紀初北京郊區所處的空間結構階段，提出了點軸開發模式，從點? ?軸開發的定義、對北京郊區經濟發展的意義進行了論述，進一步通過對點? ?軸空間結構系統的形成機理分析，借鑒點? ?軸開發的原理，提出21世紀初北京郊區的經濟增長點的構建模式，並針對這種模式構建中存在的問題，對政府工作提出了可行性建議。 -
Secondly, this paper analyses dynamically the dynamic behavior of several typical chaotic attractor in its phase space, and move specialty of chaotic attractor. the complicated degree is described using the density of phase space in the chaotic attractor. its method is better than the method of probability statistic
對幾種典型的混沌吸引子在相空間的動力行為進行動態模擬分析；利用混沌吸引子在相空間的密度刻畫混沌吸引子的復雜程度，同用概率統計的方法作比較，其結果較好地反應了混沌吸引子的復雜程度。 -
An equivalent condition of the density of poisson - stable points in the locally compact phase space
穩定點在局部緊相空間中稠的等價條件 -
According to the different require of the phase mask, the holographic recording method for the design of linearly chirped phase mask is studied in this paper. the fringe formed by the interference of two spherical waves, whose density varies linearly with space, is used to record the chirped phase mask. the two design schemes proposed in this paper are analyzed and compared, and the experimental results are given
根據光纖光柵掩模的不同要求，研究討論了用全息干涉方法製作線性啁啾位相掩模的設計方法，提出用兩球面波干涉產生條紋密度隨空間距離線性變化的干涉條紋記錄啁啾位相光柵，分析比較了文中給出的兩種設計方案，給出了實驗驗證結果，並且製作了線性啁啾光刻膠掩模。
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