Cold atomic gases have become a paradigmatic system for exploring fundamental physics,
which at the same time allows for applications in quantum technologies. The accelerating …

We measure the excitation spectrum of a stable dipolar Bose-Einstein condensate over a
wide momentum range via Bragg spectroscopy. We precisely control the relative strength ε …

Few-body physics has played a prominent role in atomic, molecular and nuclear physics
since the early days of quantum mechanics. It is now possible—thanks to tremendous …

Atomic high-precision measurements have become a competitive and essential technique
for tests of fundamental physics, the Standard Model, and our theory of gravity. It is therefore …

We consider a Bose-Einstein condensate of polar molecules in a harmonic trap, where the
effective dipole may be tuned by an external field. We demonstrate that taking into account …

We propose a comprehensive analysis of the modulational instability (MI) phenomenon in
one-dimensional Bose-Einstein condensate (BEC) in the context of mutually symmetric …

We address the issue of determining an effective two-body interaction for mean-field
calculations of the energies of many-body systems. We show that the effective interaction is …

The exploration of dimensional crossover carries profound fundamental significance,
serving as a crucial bridge in comprehending the remarkable disparities observed in …

We investigate the scattering theory of two particles in a generic D-dimensional space. For
the s-wave problem, by adopting an on-shell approximation for the T-matrix equation, we …

We study the three-body scattering hypervolume D of atoms whose scattering length a is on
the order of or smaller than the typical range r vdW of the van der Waals attraction. We find …