21 citations · 91 across the 13 of their papers we have counts for
6 papers · 1 filter
Observing S-Matrix Pole Flow in Resonance Interplay: Cold Collisions of Ultracold Atoms in a Miniature Laser-based Accelerator
Matthew Chilcott, Samyajit Gayen, James Croft +2
We provide an overview of experiments exploring resonances in the collision of ultracold clouds of atoms. Using a laser-based accelerator that capitalizes on the energy resolution…
Microscopy of an ultranarrow Feshbach resonance using a laser-based atom collider: A quantum defect theory analysis
Matthew Chilcott, James F. E. Croft, Ryan Thomas +1
We employ a quantum defect theory framework to provide a detailed analysis of the interplay between a magnetic Feshbach resonance and a shape resonance in cold collisions of ultrac…
Experimental observation of the avoided crossing of two -matrix resonance poles in an ultracold atom collider
Matthew Chilcott, Ryan Thomas, Niels Kjærgaard
In quantum mechanics, collisions between two particles are captured by a scattering matrix which describes the transfer from an initial entrance state to an outgoing final state. A…
Reducing number fluctuations in an ultracold atomic sample using Faraday rotation and iterative feedback
R. Thomas, J. S. Otto, M. Chilcott +2
We demonstrate a method to reduce number fluctuations in an ultracold atomic sample using real-time feedback. By measuring the Faraday rotation of an off-resonant probe laser beam…
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…
Quantum Scattering in an Optical Collider for Ultracold Atoms
Ryan Thomas, Matthew Chilcott, Craig Chisholm +4
We report on experiments investigating the collisional properties of atoms at ultralow collision energies using an all-optical atom collider. By using a pair of optical tweezers, w…