125 citations · 499 across the 11 of their papers we have counts for
11 papers
Mesonic excited states of magnetic monopoles in quantum spin ice
Olga Petrova
Spin ice magnetic monopoles are fractionalized emergent excitations in a class of frustrated magnets called spin ices. The classical spin ice model has an extensive number of groun…
A simple anisotropic three-dimensional quantum spin liquid with fracton topological order
Olga Petrova, Nicolas Regnault
We present a three-dimensional cubic lattice spin model, anisotropic in the direction, that exhibits fracton topological order. The latter is a novel type of topological…
The Coulomb potential V(r)=1/r and other radial problems on the Bethe lattice
Olga Petrova, Roderich Moessner
We study the problem of a particle hopping on the Bethe lattice in the presence of a Coulomb potential. We obtain an exact solution to the particle's Green's function along with th…
Hydrogenic states of monopoles in diluted quantum spin ice
Olga Petrova, Roderich Moessner, S. L. Sondhi
We consider the effect of adding quantum dynamics to a classical topological spin liquid, with particular view to how best to detect its presence in experiment. For the Coulomb pha…
Projective symmetry of partons in Kitaev's honeycomb model
Paula Mellado, Olga Petrova, Oleg Tchernyshyov
Low-energy states of quantum spin liquids are thought to involve partons living in a gauge-field background. We study the spectrum of Majorana fermions of Kitaev's honeycomb model…
Unpaired Majorana modes on dislocations and string defects in Kitaev's honeycomb model
Olga Petrova, Paula Mellado, Oleg Tchernyshyov
We study the gapped phase of Kitaev's honeycomb model (a spin liquid) on a lattice with topological defects. We find that some dislocations and string defects carry unpaired…
Unpaired Majorana modes in the gapped phase of Kitaev's honeycomb model
Olga Petrova, Paula Mellado, Oleg Tchernyshyov
We study the gapped phase of Kitaev's honeycomb model (a Z_2 spin liquid) in the presence of lattice defects. We find that some dislocations and bond defects carry unpaired Majoran…
Dynamics of artificial spin ice: continuous honeycomb network
Yichen Shen, Olga Petrova, Paula Mellado +3
We model the dynamics of magnetization in an artificial analog of spin ice specializing to the case of a honeycomb network of connected magnetic nanowires. The inherently dissipati…
Spin waves in a skyrmion crystal
Olga Petrova, Oleg Tchernyshyov
We derive the spectrum of low-frequency spin waves in skyrmion crystals observed recently in noncentrosymmetric ferromagnets. We treat the skyrmion crystal as a superposition of th…
Reducing Disorder in Artificial Kagome Ice
Stephen A. Daunheimer, Olga Petrova, Oleg Tchernyshyov +1
Artificial spin ice has become a valuable tool for understanding magnetic interactions on a microscopic level. The strength in the approach lies in the ability of a synthetic array…
Dynamics of magnetic charges in artificial spin ice
Paula Mellado, Olga Petrova, Yichen Shen +1
Artificial spin ice has been recently implemented in two-dimensional arrays of mesoscopic magnetic wires. We propose a theoretical model of magnetization dynamics in artificial spi…