43 citations · 146 across the 8 of their papers we have counts for
6 papers · 1 filter
Spontaneous symmetry breaking in frustrated triangular atom arrays due to cooperative light scattering
C. D. Parmee, K. E. Ballantine, J. Ruostekoski
We demonstrate the presence of an optical phase transition with frustration-induced spontaneous symmetry breaking in a triangular planar atomic array due to cooperative light-media…
Optical excitations of Skyrmions, knotted solitons, and defects in atoms
C. D. Parmee, M. R. Dennis, J. Ruostekoski
Analogies between non-trivial topologies of matter and light have inspired numerous studies, including defect formation in structured light and topological photonic band-structures…
Steady states of a driven dissipative dipolar XXZ chain
C. D. Parmee, N. R. Cooper
We study theoretically a driven dissipative one-dimensional XXZ spin chain with dipole coupling and a tunable strength of the Ising and XY interaction. Within a mean-field ap…
Decay rates and energies of free magnons and bound states in dissipative XXZ chains
C. D. Parmee, N. R. Cooper
Chains of coupled two-level atoms behave as 1D quantum spin systems, exhibiting free magnons and magnon bound states. While these excitations are well studied for closed systems, l…
Phases of driven two-level systems with nonlocal dissipation
C. D. Parmee, N. R. Cooper
We study an array of two-level systems arranged on a lattice and illuminated by an external plane wave which drives a dipolar transition between the two energy levels. In this set…
Stable Collective Dynamics of Two-Level Systems Coupled by Dipole Interactions
C. D. Parmee, N. R. Cooper
We study the dynamics of a set of two-level systems coupled by dipolar interactions under a resonant external Rabi drive. The two-level systems are prepared initially in a coherent…