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Observation of bound state self-interaction in a nano-eV atom collider
Ryan Thomas, Matthew Chilcott, Eite Tiesinga +2
Quantum mechanical scattering resonances for colliding particles occur when a continuum scattering state couples to a discrete bound state between them. The coupling also causes th…
A spinor Bose-Einstein condensate phase-sensitive amplifier for SU(1,1) interferometry
J. P. Wrubel, A. Schwettmann, D. P. Fahey +6
The SU(1,1) interferometer was originally conceived as a Mach-Zehnder interferometer with the beam-splitters replaced by parametric amplifiers. The parametric amplifiers produce st…
A semiclassical theory of phase-space dynamics of interacting bosons
Ranchu Mathew, Eite Tiesinga
We study the phase-space representation of dynamics of bosons in the semiclassical regime where the occupation number of the modes is large. To this end, we employ the van Vleck-Gu…
Phase-space mixing in dynamically unstable, integrable few-mode quantum systems
Ranchu Mathew, Eite Tiesinga
Quenches in isolated quantum systems are currently a subject of intense study. Here, we consider quantum few-mode systems that are integrable in their classical mean-field limit an…
Above threshold scattering about a Feshbach resonance for ultracold atoms in an optical collider
Milena S. J. Horvath, Ryan Thomas, Eite Tiesinga +2
Ultracold atomic gases have realised numerous paradigms of condensed matter physics where control over interactions has crucially been afforded by tunable Feshbach resonances. So f…
Dispersive optical detection of magnetic Feshbach resonances in ultracold gases
Bianca J. Sawyer, Milena S. J. Horvath, Eite Tiesinga +2
Magnetically tunable Feshbach resonances in ultracold atomic systems are chiefly identified and characterized through time consuming atom loss spectroscopy. We describe an off-reso…