63 citations · 517 across the 43 of their papers we have counts for
24 papers · 1 filter
Fragmentation Temperature of 1D and 3D Quantum Droplets in a BEC Mixture
Jeroen Van Loock, Denise Ahmed-Braun, Jacques Tempere
In a mixture of two Bose-Einstein condensates, the interactions can be tuned such that self-bound objects called quantum droplets appear. Whereas the ground states of such quantum…
Collective excitations of a charged Fermi superfluid in the BCS-BEC crossover
S. N. Klimin, J. Tempere, T. Repplinger +1
We consider collective excitations in the superfluid state of Fermi condensed charged gases. The dispersion and damping of collective excitations at nonzero temperatures are examin…
Quantum effective action for the bosonic Josephson junction
Koichiro Furutani, Jacques Tempere, Luca Salasnich
We investigate a bosonic Josephson junction by using the path-integral formalism with relative phase and population imbalance as dynamical variables. We derive an effective only-ph…
General memory kernels and further corrections to the variational path integral approach for the Bogoliubov-Fröhlich Hamiltonian
Timour Ichmoukhamedov, Jacques Tempere
The celebrated variational path integral approach to the polaron problem shows remarkable discrepancies with diagrammatic Monte Carlo for the Bogoliubov-Fröhlich Hamiltonian which…
Quasiparticle disintegration in fermionic superfluids
Senne Van Loon, Jacques Tempere, Hadrien Kurkjian
We study the fermionic quasiparticle spectrum in a zero-temperature superfluid Fermi gas, and in particular how it is modified by different disintegration processes. On top of the…
Path-integral approach to the thermodynamics of bosons with memory: Density and correlation functions
Timour Ichmoukhamedov, Jacques Tempere
Expanding upon previous work, using the path-integral formalism we derive expressions for the one-particle reduced density matrix and the two-point correlation function for a quadr…