175 citations · 450 across the 8 of their papers we have counts for
10 papers
Renormalization group approach to interacting fermion systems in the two-particle-irreducible formalism
N. Dupuis
We describe a new formulation of the functional renormalization group (RG) for interacting fermions within a Wilsonian momentum-shell approach. We show that the Luttinger-Ward func…
Triplet superconducting pairing and density-wave instabilities in organic conductors
J. C. Nickel, R. Duprat, C. Bourbonnais +1
Using a renormalization group approach, we determine the phase diagram of an extended quasi-one-dimensional electron gas model that includes interchain hopping, nesting deviations…
Effective action for superfluid Fermi systems in the strong-coupling limit
N. Dupuis
We derive the low-energy effective action for three-dimensional superfluid Fermi systems in the strong-coupling limit, where superfluidity originates from Bose-Einstein condensatio…
Mott insulator to superfluid transition in the Bose-Hubbard model: a strong-coupling approach
K. Sengupta, N. Dupuis
We present a strong-coupling expansion of the Bose-Hubbard model which describes both the superfluid and the Mott phases of ultracold bosonic atoms in an optical lattice. By perfor…
Mott insulator to superfluid transition of ultracold bosons in an optical lattice near a Feshbach resonance
K. Sengupta, N. Dupuis
We study the phase diagram of ultracold bosons in an optical lattice near a Feshbach resonance. Depending on the boson density, the strength of the optical lattice potential and th…
Berezinskii-Kosterlitz-Thouless transition and BCS-Bose crossover in the two-dimensional attractive Hubbard model
N. Dupuis
We study the two-dimensional attractive Hubbard model using the mapping onto the half-filled repulsive Hubbard model in a uniform magnetic field coupled to the fermion spins. The l…