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The Rydberg-Klein-Rees potentials for the ground states of alkali-metal diatomic molecules, recently obtained on the basis of new measurements employing modern techniques, have been analyzed with the use of the reduced-potential curve (RPC) method. It is shown that the behavior of this group of...
The parity-nonconserving electric-dipole-transition amplitudes for the 6 s 1 / 2 →7 s 1 / 2 transition in cesium and the 6 p 1 / 2 →7 p 1 / 2 transition in thallium have been calculated by the Dirac-Hartree-Fock method. The effects of using different Dirac-Hartree-Fock atomic core potentials...
We present here a study of the behavior of fluid systems under external constraints by molecular dynamics with stochastic boundary conditions. We investigate the validity of the local-equilibrium hypothesis. The agreement between measured local physical properties and those predicted by a...
We present the first study of fractal growth in a solid-solid phase transition. A highly ramified, randomly branched crystalline phase was obtained by heating thin amorphous GeSe 2 films. Our result for the fractal dimension of the above structure, D∼ 1.7, is in agreement with that of...
The evolution of periodic patterns of parallel convective rolls in a fluid heated from below that grow inwards from a sidewall after applying a lateral heat pulse is determined from numerical solutions of the Oberbeck-Boussinesq equations. Propagation speed and intensity profile of the front...
The Lyapunov dimension of chaotic attractors is found to be almost equal to the delay time divided by the correlation time of the feedback driving force for three dynamical systems: Mackey-Glass model for white-cell production, optical bistable hybrid system, and nonlinear ring cavity. This...
We outline a systematic scheme for the derivation of relativistic energy density functionals on the basis of the Hartree-Fock limit of quantum electrodynamics. In particular, a relativistic analog of the nonrelativistic Thomas-Fermi-Dirac-Weizsäcker model is presented.
It is shown that the system of parametrically excited surface waves falls into the class of ‘‘critical flows’’ whose dynamics and transition to chaos can be understood from first-return maps derived in the vicinity of one saddle point in phase space. The onset of chaos is via ‘‘gluing...
The first numerical tests, for a real system, of the quasiclassical description of redistribution of polarized radiation through atomic collisions are presented. Polarization results are reported for red-wing redistribution of Sr ( 1 S 0 → 1 P 1 ) in the presence of Ar colliders. They compare...
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