52 citations · 313 across the 14 of their papers we have counts for
4 papers · 1 filter
Degeneracies in a nonintegrable pairing model
J. Okolowicz, M. Ploszajczak, J. Dukelsky
The evolution pattern of exceptional points is studied in a non-integrable limit of the complex-extended 3-level Richardson-Gaudin model. The appearance of a pseudo-diabolic point…
Density matrix renormalization group approach to two-fluid open many-fermion systems
J. Rotureau, N. Michel, W. Nazarewicz +2
We have extended the density matrix renormalization group (DMRG) approach to two-fluid open many-fermion systems governed by complex-symmetric Hamiltonians. The applications are ca…
Spectral signatures of the Fulde-Ferrell-Larkin-Ovchinnikov order parameter in one-dimensional optical lattices
M. Reza Bakhtiari, M. J. Leskinen, P. Torma
We address an imbalanced two-component atomic Fermi gas restricted by a one-dimensional (1D) optical lattice and an external harmonic potential, within the mean-field Bogoliubov-de…
The Cooper pair from radio-frequency excitations in ultracold gases
J. Dukelsky, G. Ortiz
We discuss the concept of Cooper pair in the context of recent experimental studies of radio-frequency excitations in ultracold atomic gases. We argue that the threshold energy det…