15 citations · 22 across the 7 of their papers we have counts for
7 papers
Vestigial Nematic Order at Zero Temperature in Two-Dimensional Frustrated Quantum Antiferromagnets
Matthew C. O'Brien, Eduardo Fradkin
The phase diagram of the two-dimensional quantum - Heisenberg antiferromagnet on a square lattice is a long-standing open problem. Despite recent advances in numerical te…
Interplay of Quantum and Thermal Fluctuations in Two-Dimensional Randomly Pinned Charge Density Waves
Matthew C. O'Brien, Eduardo Fradkin
The interplay between quantum and thermal fluctuations in the presence of quenched random disorder is a long-standing open theoretical problem which has been made more urgent by ad…
An Exactly Solvable Model of Randomly Pinned Charge Density Waves in Two Dimensions
Matthew C. O'Brien, Eduardo Fradkin
The nature of the interplay between fluctuations and quenched random disorder is a long-standing open problem, particularly in systems with a continuous order parameter. This lack…
Spectral damping without quasiparticle decay: The dynamic structure factor of two-dimensional quantum Heisenberg antiferromagnets
Matthew C. O'Brien, Oleg P. Sushkov
Two-dimensional Heisenberg antiferromagnets play a central role in quantum magnetism, yet the nature of dynamic correlations in these systems at finite temperature has remained poo…
Colossal quasiparticle radiation in the Lifshitz spin liquid phase of a two-dimensional quantum antiferromagnet
Matthew C. O'Brien, Oleg P. Sushkov
Strong quantum fluctuations in magnetic systems can create disordered quantum spin liquid phases of matter which are not predicted by classical physics. The complexity of the exoti…
Anomalous thermal broadening from an infrared catastrophe in two-dimensional quantum antiferromagnets
Matthew C. O'Brien, Oleg P. Sushkov
The nature of quasiparticles in 2D quantum antiferromagnets at finite temperature remains an open question despite decades of theoretical work. In particular, it is not fully under…
ARRAW: Anti-resonant reflecting acoustic waveguides
Mikołaj K. Schmidt, Matthew C. O'Brien, Michael J. Steel +1
Development of acoustic and optoacoustic on-chip technologies calls for new solutions to guiding, storing and interfacing acoustic and optical waves in integrated silicon-on-insula…