128 citations · 1.3k across the 64 of their papers we have counts for
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The Josephson relation for the superfluid density and the connection to the Goldstone theorem in dilute Bose atomic gasses
John F. Dawson, Bogdan Mihaila, Fred Cooper
We derive the Josephson relation for a dilute Bose gas in the framework of an auxiliary-field resummation of the theory in terms of the normal- and anomalous-density condensates. T…
Matrix elements of the Argonne v18 potential
Bogdan Mihaila
We discuss two approaches to the calculation of matrix elements of the Argonne v18 potential. The first approach is applicable in the case of a single-particle basis of harmonic-os…
Lindhard function of a d-dimensional Fermi gas
Bogdan Mihaila
We review in detail the derivation of the dielectric response function of a noninteracting system of spin-1/2 fermions in the random-phase approximation. Results for the response f…
Composite-Field Goldstone States and Higgs Mechanism in Dilute Bose Gases
Fred Cooper, Chih-Chun Chien, Bogdan Mihaila +2
We show that a composite-field (diatom) Goldstone state is expected in a dilute Bose gas for temperatures between the Bose gas critical temperature where the atom Bose-Einstein con…
Analytical limits for cold atom Bose gases with tunable interactions
Bogdan Mihaila, Fred Cooper, John F. Dawson +2
We discuss the equilibrium properties of dilute Bose gases using a non-perturbative formalism based on auxiliary fields related to the normal and anomalous densities. We show analy…
Auxiliary field formalism for dilute fermionic atom gases with tunable interactions
Bogdan Mihaila, John F. Dawson, Fred Cooper +2
We develop the auxiliary field formalism corresponding to a dilute system of spin-1/2 fermions. This theory represents the Fermi counterpart of the BEC theory developed recently by…