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5 papers · 1 filter
Ion-Size Effect at the Surface of a Silica Hydrosol
Aleksey M. Tikhonov
The author used synchrotron x-ray reflectivity to study the ion-size effect for alkali ions (Na, K, Rb, and Cs), with densities as high as $4 \times 10^{18}- 7 \tim…
Localization Theory in Zero Dimension and the Structure of Diffusion Poles
I. M. Suslov
The 1/[-iω+ D(ω, q)q^2] diffusion pole in the localized phase transfers to the 1/ωBerezinskii-Gorkov singularity, which can be analyzed by the instanton method (M V. Sadovskii, 198…
Stabilization of Solitons Generated by a Supersonic Flow of Bose-Einstein Condensate Past an Obstacle
A. M. Kamchatnov, L. P. Pitaevskii
Stability of dark solitons generated by a supersonic flow of Bose-Einstein condensate past an obstacle is investigated. It is shown that in the reference frame attached to the obst…
Theory of ultracold Fermi gases
Stefano Giorgini, Lev P. Pitaevskii, Sandro Stringari
The physics of quantum degenerate Fermi gases in uniform as well as in harmonically trapped configurations is reviewed from a theoretical perspective. Emphasis is given to the effe…
Absence of low temperature anomaly on the melting curve of He
I. A. Todoshchenko, H. Alles, H. J. Junes +2
We have measured the melting pressure and pressure in the liquid at constant density of ultra-pure He (0.3 ppb of He impurities) with the accuracy of about 0.5 bar in th…