搜索结果: 46-60 共查到“知识库 原子与分子理论”相关记录62条 . 查询时间(1.593 秒)
We present an adaptive multigrid Dirac solver developed forWilson clover fermions which offers
order-of-magnitude reductions in solution time compared to conventional Krylov solvers. The
solver inco...
Large enhancement in hole velocity and mobility in p-type [110] and [111] silicon nanowires by cross section scaling: An atomistic analysis
silicon nanowire mobility p-type holes atomistic bandstructure
2010/11/22
The mobility of p-type nanowires (NWs) of diameters of D=12nm down to D=3nm, in [100], [110], and [111] transport orientations is calculated. An atomistic tightbinding model is used to calculate the N...
Potential contributions of noncontact atomic force microscopy for the future Casimir force measurements
Potential contributions noncontact atomic force microscopy the future Casimir force measurements
2010/11/5
Surface electric noise, i.e., the non-uniform distribution of charges and potentials on a surface, poses a great experimental challenge in modern precision force measurements. Such a challenge is enc...
Study of the double non linear quantum resonances in diatomic molecules
Study double non linear quantum resonances diatomic molecules
2010/11/5
We study the quantum dynamics of diatomic molecule driven by a circularly polarized resonant electric field. We look for a quantum effect due to classical chaos appearing due to the overlapping of no...
In recent years, ultracold atoms have emerged as an exceptionally controllable experimental system to investigate fundamental physics, ranging from quantum information science to simulations of conde...
Triatomic and chained molecular phases of metallic hydrogen at ultra-high pressures
Triatomic chained molecular phases metallic hydrogen ultra-high pressures
2010/11/11
It is long believed that steadily compressed hydrogen beyond 400 GPa might undergo a transition from a proton-paired insulator to a monatomic metal, associating with dissociation of the molecules. A ...
Hydrogen atom in momentum space with a minimal length
Hydrogen atom momentum space minimal length
2010/10/18
A momentum representation treatment of the hydrogen atom problem with a generalized un-
certainty relation,which leads to a minimal length (Xi)min = ~√3 + ′, is presented. We show that the distanc...
Engineering two-mode squeezed states of cold atomic clouds with a superconducting stripline resonator
Two-mode squeezed state circuit QED cold atoms
2010/10/20
A scheme is proposed for engineering two-mode squeezed states of two separated cold atomic clouds positioned near the surface of a superconducting stripline resonator.Based on the coherent magnetic co...
相场法研究沉淀早期两相竞争随作用势的变化规律
相场法 L12 相和DO22 相 原子间作用势 两相竞争
2013/8/23
基于微观相场法, 利用Khachaturyan 所给原子间作用势与长程序参数关系方程得 出L12 相和DO22 相原子间作用势方程, 计算出Ni3Al(L12 相)、Ni3V(DO22 相)随温度和浓度 变化的原子间作用势值. 计算结果表明: 随Al 原子浓度增大, Ni-Al 间作用势近似呈线性 增大, Ni-V 间作用势近似呈线形减小. 将作用势代入微观相场方程中表明: 当Ni-V 间作 用势...
In this work, we examine a system for coherent transfer of atoms into a Bose-Einstein condensate. We utilize two spatially separate Bose-Einstein condensates in different hyperfine ground states held ...
We propose a new light source based on having alkaline-earth atoms in an optical lattice collectively emit photons on an ultra-narrow clock transition into the mode of a high Q-resonator. The resultan...
Birefringence lens effects of atom ensemble enhanced by electromagnetically induced transparency
Birefringence lens effects of atom electromagnetically induced transparency
2010/4/12
We study the optic control for birefringence of a polarized light by an atomic ensemble with a tripod configuration, which is mediated by the electromagnetically induced transparency with a spatially ...
Quantum optics with quantum gases represents a new field, where the quantum nature of both light and ultracold matter plays equally important role. Only very recently this ultimate quantum limit of li...
物质是不依赖于人类意识的客观实在，更是构成所有物体的最微小的基本粒子。物体只是物质粒子其中一种运动形式直观表现，可是即使是真空之处也存在大量的物质粒子，真空并不空！
μ-+Li6→He6+ν的俘获几率
2007/12/12
本文计算了μ-介子和原子核Li6在不同超精细结构状态上,μ-+Li6→He6+ν的跃迁几率。指出在5％的误差范围以内,在两种超精细结构状态上俘获几率的比值和原子核矩阵元无关。