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162 papers · 1 filter
Longitudinal spin waves in a dilute Bose gas
J. E. Williams, T. Nikuni, Charles W. Clark
We present a kinetic theory for a dilute noncondensed Bose gas of two-level atoms that predicts the transient spin segregation observed in a recent experiment. The underlying mecha…
Entanglement in the Dicke model
S. Schneider, G. J. Milburn
We show how an ion trap, configured for the coherent manipulation of external and internal quantum states, can be used to simulate the irreversible dynamics of a collective angular…
Search for Leptoquarks in Electron-Photon Scattering at sqrt(s_ee) up to 209 GeV at LEP
The OPAL collaboration, G. Abbiendi
Searches for first generation scalar and vector leptoquarks, and for squarks in R-parity violating SUSY models with the direct decay of the squark into Standard Model particles, ha…
Breakdown of Fermi-liquid theory in a cuprate superconductor
R. W. Hill, Cyril Proust, Louis Taillefer +2
The behaviour of electrons in solids is remarkably well described by Landau's Fermi-liquid theory, which says that even though electrons in a metal interact they can still be treat…
Hot Accretion onto White Dwarfs in Quiescent Dwarf Novae
Mikhail V. Medvedev, Kristen Menou
We present dynamically consistent solutions for hot accretion onto unmagnetized, rotating white dwarfs (WDs) in five quiescent dwarf novae. The measured WD rotation rates (and othe…
Morse theory and Euler characteristic of sections of spherical varieties
Kiumars Kaveh
A theorem due to D. Bernstein states that Euler characteristic of a hypersurface defined by a polynomial f in (C\{0})^n is equal (upto a sign) to n! times volume of the Newton poly…