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4 papers · 2 filters
Radio frequency spectroscopy of the attractive Hubbard model in a trap
Sanjoy Datta, Viveka Nand Singh, Pinaki Majumdar
Attractive interaction between fermions can lead to pairing and superfluidity in an optical lattice. In contrast to the `continuum', on a lattice the trap induced density variation…
Hartree-Fock Ground State Phase Diagram of Jellium
Lucas Baguet, François Delyon, Bernard Bernu +1
We calculate the ground state phase diagram of the homogeneous electron gas in three dimensions within the Hartree-Fock approximation and show that broken symmetry states are energ…
Exchange-correlation energy for the 3D homogeneous electron gas at arbitrary temperature
Ethan W. Brown, Jonathan L. DuBois, Markus Holzmann +1
We fit finite-temperature path integral Monte Carlo calculations of the exchange-correlation energy of the 3D finite-temperature homogeneous electron gas in the warm-dense regime (…
The 1D Heisenberg antiferromagnet model by the variation after projection method
Aziz Rabhi, Marta Brajczewska, Peter Schuck +2
The 4 sites and 8 sites 1D anti-ferromagnetic Heisenberg chains in the Jordan-Wigner representation are investigated within the standard Hartree-Fock and RPA approaches, both in th…