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6 papers · 1 filter
Generalized Galitskii approach for the vertex function of a Fermi gas with resonant interaction
A. Vagov, H. Schomerus, A. Shanenko
We present a generalized Galitskii approach for the Bethe-Salpeter equation for the two-particle vertex function of a Fermi system with resonant interaction by accounting for the r…
Spin dynamics in a one-dimensional ferromagnetic Bose gas
M. B. Zvonarev, V. V. Cheianov, T. Giamarchi
We investigate the propagation of spin excitations in a one-dimensional (1D) ferromagnetic Bose gas. While the spectrum of longitudinal spin waves in this system is sound-like, the…
Excitonic Mott transition in type-II quantum dots
Bhavtosh Bansal, M. Hayne, M. Geller +2
Photoluminescence spectra measured on a type-II GaSb/GaAs quantum dot ensemble at high excitation power indicate a Mott transition from the low density state comprising of spatiall…
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…
Stochastic Theory in the Strong Coupling Limit
N. Abedpour, M. D. Niry, A. Bahraminasab +4
The stochastic -theory in dimensions dynamically develops domain wall structures within which the order parameter is not continuous. We develop a statistical theory for th…
Three-body local correlation function in the Lieb-Liniger model: bosonization approach
Vadim V. Cheianov, H. Smith, M. B. Zvonarev
We develop a method for the calculation of vacuum expectation values of local operators in the Lieb-Liniger model. This method is based on a set of new identities obtained using in…