369 citations · 5k across the 80 of their papers we have counts for
4 papers · 1 filter
Lattice supersymmetry and order-disorder coexistence in the tricritical Ising model
Edward O'Brien, Paul Fendley
We introduce and analyze a quantum spin/Majorana chain with a tricritical Ising point separating a critical phase from a gapped phase with order-disorder coexistence. We show that…
Deconfinement transitions in a generalised XY model
Pablo Serna, J. T. Chalker, Paul Fendley
We find the complete phase diagram of a generalised XY model that includes half-vortices. The model possesses superfluid, pair-superfluid and disordered phases, separated by Koster…
Prethermal Strong Zero Modes and Topological Qubits
Dominic V. Else, Paul Fendley, Jack Kemp +1
We prove that quantum information encoded in some topological excitations, including certain Majorana zero modes, is protected in closed systems for a time scale exponentially long…
Long coherence times for edge spins
Jack Kemp, Norman Y. Yao, Christopher R. Laumann +1
We show that in certain one-dimensional spin chains with open boundary conditions, the edge spins retain memory of their initial state for very long times. The long coherence times…