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101.
G. Tonini F. Werner Y. Castin 《The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics》2006,39(2):283-294
We investigate theoretically the formation of a vortex lattice in
a superfluid two-spin component Fermi gas in a rotating harmonic trap, in a BCS-type
regime of condensed non-bosonic pairs.
Our analytical solution of the superfluid
hydrodynamic equations, both for the 2D BCS equation of state
and for the 3D unitary quantum gas, predicts that the vortex free gas is
subject to a dynamic instability for fast enough rotation.
With a numerical solution of the full
time dependent BCS equations in a 2D model, we confirm the existence of this dynamic
instability and we show that it leads to the formation of a regular pattern
of quantum vortices in the gas. 相似文献
102.
Leonard Gross 《Journal of statistical physics》1981,25(1):57-72
The Dobrushin uniqueness theorem assures that in a very large class of high-temperature classical statistical mechanical lattice models with short or long range, many-body interactions, and arbitrary compact spin space there are no first-order phase transitions. It will be shown that for the same class of interactions there are also no second-order phase transitions.Research partially supported by the National Science Foundation under Grant MCS 78-00688. 相似文献
103.
Enzymatic reactions in supercritical gases 总被引:10,自引:0,他引:10
D. A. Hammond M. Karel A. M. Klibanov V. J. Krukonis 《Applied biochemistry and biotechnology》1985,11(5):393-400
The enzyme polyphenol oxidase has been found to be catalytically active in supercritical carbon dioxide and fluoroform: it
readily oxidizesp-cresol andp-chlorophenol to their correspondingo-benzoquinones. 相似文献
104.
K. F. Canter P. G. Coleman T. C. Griffith G. R. Heyland 《Applied Physics A: Materials Science & Processing》1974,3(3):249
Experimentally determined values of the total scattering cross-sections for positrons in the energy range 2–400 eV on He,
Ne, Ar, Kr and Xe are presented.
Paper F 6 presented at 3rd Internal. Conf. Positron Annihilation, Otaniemi, Finland (August 1973). 相似文献
105.
James A. McLennan 《Journal of statistical physics》1982,28(3):521-537
The kinetic theory for dense gases is modified to take into account the existence of bound states. A molecular chaos condition is used which corresponds to the division of the two- and three-particle Hubert spaces into scattering and boundstate subspaces. A kinetic stage results from a long-time limit which converges to yield time-independent functionals for the two- and three-particle density matrices, as functionals of the density matrices for atoms and molecules. Coupled kinetic equations are obtained which describe the gas as a reacting mixture of atoms and diatomic molecules. These include the effects of scattering and rearrangement collisions between the atom and the molecule, and of molecular formation and dissociation. 相似文献
106.
高技术用混合气体节制冷循环吴沛宜,许名尧(西安交通大学动力系西安710049)关键词:技术,气体,制冷循环。THETHROTTLINGREFRIGERATIONCYCLESUSINGMIXINGGASESUSEDINHIGHTECHNIQUE¥WuP... 相似文献
107.
108.
Summary Detailed comparisons between Montecarlo and Boltzmann calculations of electron energy distributions in gases acted upon by
RF fields are presented. Attention is turned to model gases of special theoretical interest but various calculations have
also been made for real gases such as pure CO and He−CO mixtures. The analysis has shown that large discrepancies exist between
energy distributions obtained with the two mentioned techniques under conditions of particular physical interest. The discrepancies
are found to be the consequence of the two-term approximation and are expected to disappear if an appropriate multiterm solution
of the Boltzmann equation is adopted. 相似文献
109.
Dispersive two-beam Fourier interferograms of N2-gas in the visible wave number range are calculated numerically for nonabsorbing as well as absorbing gas and compared with experiment. Some problems of inverse Fourier transformation of dispersive interferograms are also discussed. 相似文献
110.
The revised Enskog equation for a dense gas of rough spheres is considered. TheH theorem and the conservation equations are discussed. 相似文献