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- University of the Basque CountryES40 papers
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4 papers · 1 filter
Variational solution of the T-matrix integral equation
I. A. Nechaev, E. V. Chulkov
We present a variational solution of the T-matrix integral equation within a local approximation. This solution provides a simple form for the T matrix similar to Hubbard models bu…
Edge excitations and Topological orders in rotating Bose gases
M. A. Cazalilla, N. Barberan, N. R. Cooper
The edge excitations and related topological orders of correlated states of a fast rotating Bose gas are studied. Using exact diagonalization of small systems, we compute the energ…
Are the Tonks regimes in the continuum and on the lattice truly equivalent?
M. A. Cazalilla
Motivated by recent experiments, we compare the Tonks (i.e. hard-core boson gas) regime achieved in an optical lattice with the Tonks regime of a one-dimensional Bose gas in the co…
Strong spin-orbit splitting on Bi surfaces
Yu. M. Koroteev, G. Bihlmayer, J. E. Gayone +4
Using first-principles calculations and angle-resolved photoemission, we show that the spin-orbit interaction leads to a strong splitting of the surface state bands on low-index su…