25 citations · 66 across the 7 of their papers we have counts for
4 papers · 1 filter
Gauge potentials and vortices in the Fock space of a pair of periodically driven Bose-Einstein condensates
J. Mumford, D. Kamp, D. H. J. O'Dell
We perform a theoretical study of the coupled dynamics of two species of Bose-Einstein condensates (BECs) in a double well potential where both the tunneling and the interatomic in…
Quantum caustics and the hierarchy of light cones in quenched spin chains
W. Kirkby, J. Mumford, D. H. J. O'Dell
We show that the light cone-like structures that form in spin chains after a quench are quantum caustics. Their natural description is in terms of catastrophe theory and this impli…
Critical exponents for an impurity in a bosonic Josephson junction: Position measurement as a phase transition
J. Mumford, D. H. J. O'Dell
We use fidelity susceptibility to calculate quantum critical scaling exponents for a system consisting of identical bosons interacting with a single impurity atom in a double w…
Impurity in a bosonic Josephson junction: swallowtail loops, chaos, self-trapping and the poor man's Dicke model
Jesse Mumford, Jonas Larson, D. H. J. O'Dell
We study a model describing identical bosonic atoms trapped in a double-well potential together with a single impurity atom, comparing and contrasting it throughout with the Di…