1 citations · 2 across the 5 of their papers we have counts for
17 papers
Sea-Boson Analysis of the Infinite-U Hubbard Model
Girish S. Setlur
By expanding the projection operator in powers of the density fluctuations, we conjecture a hamiltonian purely quadratic in the sea-bosons that reproduces the right spin and charge…
Quantum Hydrodynamics of Fermi Fluids
Girish S. Setlur
It is shown that gauge theories with fermions are most naturally studied via a polar decomposition of the field variable. This is the fermionic analog of the preprint cond-mat/0210…
Momentum Distribution of a Weakly Coupled Fermi Gas
Girish S. Setlur
We apply the sea-boson method to compute the momentum distribution of a spinless continuum Fermi gas in two space dimensions with short-range repulsive interactions. We find that t…
Quenched Disorder From Sea-Bosons
Girish S. Setlur
The degenerate Fermi gas coupled to a random potential is used to study metal-insulator transitions in various dimensions. We first recast the problem in the sea-boson language tha…
A.C. Conductivity of a Disordered Metal
Girish S. Setlur
The degenerate free Fermi gas coupled to a random potential is used to compute a.c. conductivity in various dimensions. We first formally diagonalise the hamiltonian using an appro…
Xray-Edge Spectra From Sea-Bosons-I
Girish S. Setlur
The well-studied phenomenon of X-ray edge singularities is revisited using the sea-boson approach that has recently been placed on a rigorous footing. We are able to reproduce the…