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Magic-zero wavelengths of alkali-metal atoms and their applications
Magic-zero wavelengths alkali-metal atoms application Quantum Gases
2011/8/4
Abstract: Using first-principles calculations, we identify "magic-zero" optical wavelengths, \lambda_zero, for which the ground-state frequency-dependent polarizabilities of alkali-metal atoms vanish....
An analytical model of Faraday rotation in hot alkali metal vapours
analytical model Faraday rotation hot alkali metal vapours Atomic Physics
2011/8/3
Abstract: We report a thorough investigation into the absorptive and dispersive properties of hot caesium vapour, culminating in the development of a simple analytical model for off-resonant Faraday r...
We show that dipolar interactions between ultracold polar alkali dimers in optical lattices can be used to realize a highly tunable generalization of the t-J model, which we refer to as the t-J-V -W m...
Stroboscopic back-action evasion in a dense alkali-metal vapor
Stroboscopic alkali-metal vapor
2010/11/17
We explore experimentally quantum non-demolition (QND) measurements of atomic spin in a hot potassium vapor in the presence of spin-exchange relaxation. We demonstrate a new technique for back-action...
Calculated Pressure Induced BCC-FCC Phase Transitions in Alkali Metals
Pressure Phase Transformations Alkali Metals Electronic Structure Calculations LMTO Method
2010/4/8
The partial occupation numbers and density of states (DOS), and the total DOS at the Fermi level are calculated as a function of reduced atomic volume for bcc and fcc alkali metals employing the linea...
Electrical Resistivity of Liquid Alkali Na-based Binary Alloys
Pseudopotential Electrical Resistivity Alkali Na-based liquid binaries
2010/4/9
The study of the electrical resistivity rL of alkali Na-based binary alloys Na1-xLix, Na1-xKx, Na1-xRbx and Na1-xCsx have been made by well-recognized model potential of Gajjar et al. The most recent ...
A Study of the Electronic Properties of Liquid Alkali Metals. A Self-Consistent Approach
the Electronic Properties Liquid Alkali Metals A Self-Consistent Approach
2010/10/28
We study the electronic properties (density of states, conductivity and thermopower) of some nearly-freeelectron systems: the liquid alkali metals and two liquid alloys, Li-Na and Na-K. The study has ...
High-Pressure Phase Transition in Some Alkali Halides Using Interatomic Potential Model
Alkali halide phase transition interatomic potential
2010/4/13
We have predicted the phase transition pressure in some alkali halides NaCl and KCl using an interatomic potential approach based on a rigid ion model. We have obtained phase transition pressures 28.6...
Studies on the Opto-Electronic Constants of Alkali-Halide Crystals
Refractive index energy gap electronegativity electronic polarizability alkali-halides
2010/4/12
In this presentation, the correlation between refractive index n of alkali-halide crystals and both energy band gap Eg and Pauling's electronegativity difference D x have been studied. The following r...
The Single Step VMHNC Calculations for Liquid Alkali Metals in the Inverse Problem
liquid metals inverse potentials VMHNC theory
2010/4/13
An effective pair potential f (r) for liquid alkali metals close totheir melting points is extracted from an experimental structure factor using the inverse method based on the variational modified hy...
Second Order Elastic Constants and Some Thermoelastic Properties of Alkali Halides Using WOODCOCK Potential
Second order elastic constant NaCl-type crystal Anderson-Grüneisen
2010/4/15
Second Order Elastic Constants (S.O.E.C) of NaCl-type crystals have been calculated using the Woodcock potential. Short-range repulsive interactions have been included up to second-nearest neighbors. ...
The Structure of Liquid Alkali Metals Calculated by the Thermodynamic Perturbation Theory
hypernetted-chain Percus-Yevick empty-core optimized random-phase approximation
2010/4/16
The structure of a hard sphere fluid has been calculated numerically via the Percus-Yevick (PY) and hypernetted-chain (HNC) closure relations and used as a reference system to calculate the structure ...
Bulk Modulus Calculations of Liquid Alkali Metal Alloys
Liquid Alkali Metal Alloys Bulk Modulus Calculations
2010/4/19
In this work, the bulk modulus values for liquid alkali metal alloys near melting point are studied in the framework of the Gibbs-Bogoliubov method. We use the local Heine-Abarenkov pseudopotential an...