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A method of statistically characterizing an area-preserving, doubly periodic mapping is presented. This method allows one to calculate the characteristic functions, and the joint probabilities of the mapping.
The diffusion coefficient D and the Ostwald solubility α have been measured for Xe 133 atoms in water-sucrose solutions ranging in viscosity η from 1 to 289 cP, i.e., 0.68% sucrose by weight. In water D ( 20 ° C ) = ( 1.32 ± 0 . 0 5 ) × 10 - 5 cm 2 /sec, in agreement with the Stokes-Einstein...
The electron excitation cross section of the metastable 1 s 5 level of neon is measured by a new technique that involves laser excitation of the metastables to a fluorescing level. A method for obtaining an absolute calibration of the cross section is given. The value of the direct cross section...
Results of a previous work on the nonlinear scattering by electrostatic waves in a laser-produced plasma are reconsidered and corrected.
A perturbational method in the form of a power series in a "softness parameter" ξ has been developed for determining the thermodynamic properties and the pair-correlation function of a real fluid using the thermodynamic quantities and distribution functions of a reference system. The method...
The evolution of a light wave along an optical system, in paraxial approximation, can be described with the aid of a group of operators acting as canonical transformations in the framework of nonrelativistic quantum mechanics in two dimensions. This group is isomorphic to the ten-dimensional...
Owing to the large dipole associated with its nitrile bond, 8OCB (cyano-octyloxybiphenyl) tends to associate as antiparallel pairs. The number of pairs, N , increases with increasing mole fraction, x 6 OCB , of a shorter homolog, 6OCB (cyanohexyloxybiphenyl). The stability of the nematic and...
We propose a variational method for scattering in which the functional is of a fractional form as for the Schwinger variational principle. However, our functional does not involve the Green's function, but the Hamiltonian and the potential function. This method shows features of both the...
The energies and intensities of the 2 P 1 3 → 1 S 0 1 , and 2 P 1 1 → 1 S 0 1 transitions in He-like sulfur ions, and of the 2 P 2 → 1 S 2 transition in H-like sulfur ions have been studied as a function of the thickness and electron density of the solid through which the ions travel. The...
A quantum treatment of a coherently driven cavity with a medium of two-level atoms is given. The system displays both absorptive and dispersive bistability. Quantum fluctuations are included via a Fokker-Planck equation in a generalized P representation, after adiabatic elimination of the atomic...
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