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66 papers · 1 filter
Probing the energy bands of a Bose-Einstein condensate in an optical lattice
M. L. Chiofalo, S. Succi, M. P. Tosi
We simulate three experimental methods which could be realized in the laboratory to probe the band excitation energies and the momentum distribution of a Bose-Einstein condensate i…
Standard Model Neutrinos as Warm Dark Matter
Gian F. Giudice, Edward W. Kolb, Antonio Riotto +2
Standard Model neutrinos are not usually considered plausible dark matter candidates because the usual treatment of their decoupling in the early universe implies that their mass m…
The Non-commutative Brane World
Luigi Pilo, Antonio Riotto
We propose a new higher-dimensional mechanism to localize scalar fields as well as fermionic and gauge fields. The underlying theory is a six-dimensional non-commutative field theo…
First Measurement of the Ratio B(t-->Wb)/B(t-->Wq) and Associated Limit on the CKM Element Vtb
CDF Collaboration
We present the first measurement of the ratio of branching fraction R= B(t-->wb)/B(t-->Wq) from ppbar collisions at sqrt(s)=1.8 TeV. The data set corresponds to 109 pb-1 of data re…
Time-Dependent Density-Functional Theory for Superfluids
M. L. Chiofalo, M. P. Tosi
A density-functional theory is established for inhomogeneous superfluids at finite temperature, subject to time-dependent external fields in isothermal conditions. After outlining…
Quasicondensate and superfluid fraction in the 2D charged-boson gas at finite temperature
E. Strepparola, A. Minguzzi, M. P. Tosi
The Bogoliubov - de Gennes equations are solved for the Coulomb Bose gas describing a fluid of charged bosons at finite temperature. The approach is applicable in the weak coupling…