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9 papers · 1 filter
Ground-state properties of unitary bosons: from clusters to matter
J. Carlson, S. Gandolfi, U. van Kolck +1
The properties of cold Bose gases at unitarity have been extensively investigated in the last few years both theoretically and experimentally. In this paper we use a family of inte…
Mass-imbalanced fermionic mixture in a harmonic trap
Betzalel Bazak
The mass-imbalanced fermionic mixture is studied, where identical fermions interact resonantly with an impurity, a distinguishable atom. The shell structure is explored, an…
Five-Body Efimov Effect and Universal Pentamer in Fermionic Mixtures
Betzalel Bazak, Dmitry S. Petrov
We show that four heavy fermions interacting resonantly with a lighter atom (4+1 system) become Efimovian at mass ratio 13.279(2), which is smaller than the corresponding 2+1 and 3…
Effective Field Theory for Few-Boson Systems
Betzalel Bazak, Moti Eliyahu, Ubirajara van Kolck
We study universal bosonic few-body systems within the framework of effective field theory at leading order (LO). We calculate binding energies of systems of up to six particles an…
Numerical solution of the Boltzmann equation for trapped Fermi gases with in-medium effects
Pierre-Alexandre Pantel, Dany Davesne, Michael Urban
Using the test-particle method, we solve numerically the Boltzmann equation for an ultra-cold gas of trapped fermions with realistic particle number and trap geometry in the normal…
Pairing correlations of cold fermionic gases at overflow from a narrow to a wide harmonic trap
A. Pastore, P. Schuck, M. Urban +2
Within the context of Hartree-Fock-Bogoliubov theory, we study the behavior of superfluid Fermi systems when they pass from a small to a large container. Such systems can be now re…