45 citations · 105 across the 4 of their papers we have counts for
5 papers
The imbalanced antiferromagnet in an optical lattice
Arnaud Koetsier, F. van Liere, H. T. C. Stoof
We study the rich properties of the imbalanced antiferromagnet in an optical lattice. We present its phase diagram, discuss spin waves and explore the emergence of topological exci…
A strongly interacting Bose gas: Nozières and Schmitt-Rink theory and beyond
Arnaud Koetsier, P. Massignan, R. A. Duine +1
We calculate the critical temperature for Bose-Einstein condensation in a gas of bosonic atoms across a Feshbach resonance, and show how medium effects at negative scattering lengt…
Achieving the Neel state in an optical lattice
Arnaud Koetsier, R. A. Duine, Immanuel Bloch +1
We theoretically study the possibility of reaching the antiferromagnetic phase of the Hubbard model by starting from a normal gas of trapped fermionic atoms and adiabatically rampi…
BEC-BCS crossover in an optical lattice
Arnaud Koetsier, D. B. M. Dickerscheid, H. T. C. Stoof
We present the microscopic theory for the BEC-BCS crossover of an atomic Fermi gas in an optical lattice, showing that the Feshbach resonance underlying the crossover in principle…
Matrix Models of 2D String Theory in Non--trivial Backgrounds
Arnaud Koetsier
After a brief review of critical string theory in trivial backgrounds we begin with introduction to strings in non--trivial backgrounds and noncritical string theory. In particular…