Masafumi Udagawa, Ludovic D. C. Jaubert, Claudio Castelnovo, Roderich Moessner
Mar 2016
We study the interplay of topological bottlenecks and energetic barriers to
equilibration in a Coulomb spin liquid where a short-range energetic coupling
between defects charged under an emergent gauge field supplements their
entropic long-range C...
Finite-temperature () properties of a Kitaev model defined on a honeycomb
lattice are investigated by a quantum Monte Carlo simulation, from the
viewpoint of fractionalization of quantum spins into two types of
Majorana fermions, itiner...
Effects of an open surface on a magnetic Chern insulator are investigated in
comparison with those of an interface to a capping magnetic layer. In magnets,
an open surface often perturbs the magnetic order by a reconstruction of the
magnetic momen...
A three-dimensional Kitaev model on a hyperhoneycomb lattice is investigated
numerically at finite temperature. The Kitaev model is one of the solvable
quantum spin models, where the ground state is given by gapped and gapless spin
liquids, depend...
We study the collective behavior of Majorana modes in the vortex state of
chiral -wave superconductors. Away from the isolated vortex limit, the
zero-energy Majorana states communicate with each other on a vortex lattice,
and form a coherent ba...
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