19 citations · 100 across the 10 of their papers we have counts for
7 papers · 1 filter
Morphological false-vacuum decay in dipolar supersolids
Wyatt Kirkby, Lauriane Chomaz, Thomas Gasenzer
False-vacuum decay between two morphologically distinct supersolid phases via bubble nucleation is studied in a uniform dipolar gas confined to the plane. Starting from a metastabl…
Spin rotons and supersolids in binary antidipolar condensates
W. Kirkby, T. Bland, F. Ferlaino +1
We present a theoretical study of a mixture of antidipolar and nondipolar Bose-Einstein condensates confined to an infinite tube. We predict the presence of a spin roton and its as…
Caustics in quantum many-body dynamics
W. Kirkby, Y. Yee, K. Shi +1
We describe a new class of nonequilibrium quantum many-body phenomena in the form of networks of caustics that dominate the many-body wavefunction in the semiclassical regime follo…
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…
Catastrophes in non-equilibrium many-particle wave functions: universality and critical scaling
J Mumford, W Kirkby, D H J O'Dell
As part of the quest to uncover universal features of quantum dynamics, we study catastrophes that form in simple many-body wave functions after a quench, focusing on two-mode syst…
Testing the nonlocal kinetic energy functional of an inhomogeneous, two-dimensional degenerate Fermi gas within the average density approximation
J. Towers, B. P. van Zyl, W. Kirkby
In a recent paper [Phys.~Rev.~A {\bf 89}, 022503 (2014)], the average density approximation (ADA) was implemented to develop a parameter-free, nonlocal kinetic energy functional to…
Density-functional theory for the crystalline phases of a two-dimensional dipolar Fermi gas
B. P. van Zyl, W. Kirkby, W. Ferguson
Density-functional theory is utilized to investigate the zero-temperature transition from a Fermi liquid to an inhomogeneous stripe, or Wigner crystal phase, predicted to occur in…