欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用解析与数值方法,对处于对称双势阱中的玻色爱因斯坦凝聚体中,势垒宽度对系统非线性耦合及其动力学的影响进行了研究.研究发现当势垒宽度较大时,系统的线性耦合强度可迅速减小;在势垒宽度大于0.3且非线性强度较大时,线性耦合强度远小于非线性耦合项,此时玻色约瑟夫森结模型的动力学特性由非线性耦合强度来决定.同时对势垒宽度对BEC约瑟夫森振荡的周期和发生宏观量子自俘获时的非线性临界值进行了详细的研究.
英文摘要：
By using analytical and numerical methods,the effects of barrier width on the strength of nonlinear coupling and the dynamics of Bose-Einstein Condensates with symmetrical double square well were investigated.The results show that the linear coupling could be very small once the barrier width is large.When the width is larger than 0.3 and nonlinear parameters larger,the linear coupling can be safely neglected.In this case,the dynamics character of Bose-Jsoephson model is determined only by nonlinear coupling strength.Furthermore,the effects of this width on the period of the nonlinear Josephson oscillation and the nonlinear threshold value in macroscopic quantum self-trapping were presented in details.
同期刊论文项目
同项目期刊论文
Modulation of the fluorescence intensity of single squaraine-derived rotaxane molecules by an electr
Line Shape Analysis of Ultracold Heteronuclear Molecular Photoassociation Spectroscopy by Resonance-
Simple, reliable, and nondestructive method for the measurement of vacuum pressure without specializ
Spin-orbit-induced bound state and molecular signature of the degenerate Fermi gas in a narrow Feshb
An efficient method to study highly excited states at the ab initio level and application to ultralo
Electric Field Induced Fluorescence Modulation of Single Molecules in PMMA Based on Electron Transfe
High resolution photoassociation spectra of an ultracold Cs-2 long-range 0(u)(+) (6S(1/2)+6P(1/2)) s
Nuclear fluxes in diatomic molecules deduced from pump-probe spectra with spatiotemporal resolutions
Experimental observation of the lowest levels in the photoassociation spectroscopy of the 0(g)(-) pu
High sensitive trap loss spectroscopic detection of the lowest vibrational levels of ultracold molec
Experimental Determination of the Rotational Constants of High-Lying Vibrational Levels of Ultracold
Determination of the rotational constant of the Cs-2 0(g)(-) (6s+6p(3/2)) state by trap loss spectro
Structural, electronic, mechanical, and thermodynamic properties of UN2: Systematic density function
Mechanics, Lattice Dynamics, and Chemical Bonding in ZrB2 and ZrB12 from First-Principles Calculatio
Electronic, mechanical and thermodynamic properties of alpha-UH3: A comparative study by using the L
First-principles calculations of phase transition, elasticity, and thermodynamic properties for TiZr
First-principles calculations of phase transition, elastic modulus, and superconductivity under pres
期刊信息
位置：