22 citations · 72 across the 16 of their papers we have counts for
16 papers
Superconducting and correlated phases of an effective Hubbard model on the BCC lattice
Theja N. De Silva
We investigate the electronic phases of an effective Hubbard model on the body-centered-cubic lattice, motivated by alkali-doped fulleride molecular solids. The model incorporates…
Two-band atomic superfluidity in the presence of an orbital Feshbach resonance
Andrew Vincent, Theja N. De Silva
We study static superfluid properties of alkali-earth-like Fermi atomic systems in the presence of orbital Feshbach resonance. Using a two-band description of the ground state and…
Metal-Insulator-Superconductor transition of spin-3/2 atoms on optical lattices
Theja N. De Silva
We use a slave-rotor approach within a mean-field theory to study the competition of metallic, Mott-insulating, and superconducting phases of spin-3/2 fermions subjected to a perio…
An Effective Series Expansion to the Equation of State of Unitary Fermi Gases
Theja N. De Silva
Using universal properties and a basic statistical mechanical approach, we propose a general equation of state for unitary Fermi gases. The universal equation of state is written a…
An effective mean field theory for the coexistence of anti-ferromagnetism and superconductivity: Applications to iron-based superconductors and cold Bose-Fermi atomic mixtures
Jeremy Brackett, Joseph Newman, Theja N. De Silva
We study an effective fermion model on a square lattice to investigate the cooperation and competition of superconductivity and anti-ferromagnetism. In addition to particle tunneli…
Phase diagram of strongly attractive -orbital fermions on optical lattices
Theja N. De Silva
We examine a system of doubly degenerate -orbital polarized fermions on a two-dimensional square lattice with a strong on-site interaction. We consider the system density at the…
Evidence for the breakdown of momentum independent many-body t-matrix approximation in the normal phase of Bosons
Theja N. De Silva
We revisit the momentum independent many-body t-matrix approach for boson systems developed by Shi and Griffin~\cite{sg} and Bijlsma and Stoof~\cite{bs}. Despite its popularity, si…
Thermodynamic Properties of Universal Fermi Gases
Erik M. Weiler, Theja N. De Silva
We develop a simple, mean-field-like theory for the normal phase of a unitary Fermi gas by deriving a self-consistent equation for its self-energy via a momentum-dependent coupling…
Phase diagram of two-component dipolar fermions in one-dimensional optical lattices
Theja N. De Silva
We theoretically map out the ground state phase diagram of interacting dipolar fermions in one-dimensional lattice. Using a bosonization theory in the weak coupling limit at half f…
Spin diffusion of lattice fermions in one dimension
Andrew P. Snyder, Theja N. De Silva
We study long-time spin diffusion of harmonically trapped lattice fermions in one dimension. Combining thermodynamic Bethe ansatz approach and local density approximation, we calcu…
Tan's universal contact and collective oscillations of strongly interacting Fermi gases
Mark DelloStritto, Theja N. De Silva
We study strongly interacting two component Fermi gas near a Feshbach resonance. By using a ground state energy functional constructed based on asymptotic limits and Monte Carlo ca…
Compressibility and entropy of cold fermions in one dimensional optical lattices
Andrew Snyder, Iori Tanabe, Theja De Silva
We calculate several thermodynamic quantities for repulsively interacting one-dimensional fermions.We solve the Hubbard model at both zero and finite temperatures using the Bethe-a…
Low temperature thermodynamic properties of a polarized Fermi gas in a quartic trap
Mark DelloStritto, Theja N. De Silva
We study low temperature thermodynamic properties of a polarized Fermi gas trapped in a quartic anharmonic potential. We use a semi classical approximation and a low temperature se…
Density profiles and density oscillations of an interacting three-component normal Fermi gas
Theja N. De Silva
We use a semiclassical approximation to investigate density variations and dipole oscillations of an interacting three-component normal Fermi gas in a harmonic trap. We consider bo…
Theory of the Normal/Superfluid interface in population imbalanced Fermi gases
Stefan K. Baur, Sourish Basu, Theja N. De Silva +1
We present a series of theoretical studies of the boundary between a superfluid and normal region in a partially polarized gas of strongly interacting fermions. We present mean-fie…
Pathology of Schwinger boson mean field theory for Heisenberg spin models
Theja N. De Silva, Michael Ma, Fu Chun Zhang
We have re-analyze the Schwinger boson mean field theory (SBMFT) for Heisenberg spin models on the cubic lattice. We find that the second order phase transition point for magnetic…