6 papers
Arrival times of an atomic Bose-Einstein condensate
Pascal Naidon, Lucas Happ, Denis Boiron
The times of flight of an atomic Bose-Einstein condensate are theoretically investigated in the experimentally unexplored regime corresponding to detection close to the trap of the…
Proposal of quantum arrival-time measurement with a Bose-Einstein condensate
Pascal Naidon, Lucas Happ, Denis Boiron
This work shows how a Bose-Einstein condensate of ultracold atoms could be used to address a long-standing question in quantum theory: how much time does it take for a particle to…
From three-body resonances to bound states in a continuum: pole trajectories
Lucas Happ
We investigate the formation of three-body bound states in the continuum by tracing pole trajectories in the complex energy plane under variation of system parameters. Using a one-…
FewBodyToolkit.jl: a Julia package for solving quantum few-body problems
Lucas Happ
Few-body physics explores quantum systems of a small number of particles, bridging the gap between single-particle and many-body regimes. To provide an accessible tool for such stu…
Probing three-body systems with the modern QCD interaction
Faisal Etminan, Lucas Happ
Newly, first-principles lattice QCD results at the physical pion mass, MeV, have been reported by the HAL QCD Collaboration for the S-wave interaction betw…
Stabilization of three-body resonances to bound states in a continuum
Lucas Happ, Pascal Naidon
Three-body resonances are ubiquitous in quantum few-body physics and are characterized by a finite lifetime before decaying into continuum states of their composing subsystems. In…