103 citations · 379 across the 20 of their papers we have counts for
19 papers
Higgs gap modes in superconducting circuit quantisation
Yun-Chih Liao, Ben J. Powell, Thomas M. Stace
We extend a recently developed projective circuit quantisation approach to incorporate superconducting Higgs modes associated to gap dynamics. This approach starts from a microscop…
Nuclear Magnetic Resonance in Low-Symmetry Superconductors
D. C. Cavanagh, B. J. Powell
We consider the nuclear spin-lattice relaxation rate, in superconductors with accidental nodes. We show that a Hebel-Slichter-like peak occurs even in the absence of an is…
Dynamical reduction of the dimensionality of exchange interactions and the "spin-liquid" phase of -(BEDT-TTF)
B. J. Powell, E. P. Kenny, J. Merino
We show that the anisotropy of the effective spin model for the dimer Mott insulator phase of -(BEDT-TTF) salts is dramatically different from that of the underlying tight-…
Haldane insulator protected by reflection symmetry in the doped Hubbard model on the three-legged ladder
H. L. Nourse, I. P. McCulloch, C. Janani +1
We demonstrate the existence of an insulating phase in the three-legged Hubbard ladder at two-thirds filling. In this phase chargons are bound because the physics within a unit cel…
Phase Diagram of the Spin- Triangular - Heisenberg Model on a 3-leg Cylinder
S. N. Saadatmand, B. J. Powell, I. P. McCulloch
We study the phase diagram of the frustrated Heisenberg model on the triangular lattice with nearest and next-nearest neighbor spin exchange coupling, on 3-leg ladders. Using the d…
Low-energy effective theories of the two-thirds filled Hubbard model on the triangular necklace lattice
C. Janani, J. Merino, I. P. McCulloch +1
Motivated by MoS(dmit), we investigate the Hubbard model on the triangular necklace lattice at two-thirds filling. We show, using second order perturbation theory, that…