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Quantum percolation of monopole paths and the response of quantum spin ice
Matthew Stern, Claudio Castelnovo, Roderich Moessner +2
We consider quantum spin ice in a temperature regime in which its response is dominated by the coherent motion of a dilute gas of monopoles. The hopping amplitude of a monopole is…
Analytical theory of pyrochlore cooperative paramagnets
Akshat Pandey, Roderich Moessner, Claudio Castelnovo
The pyrochlore lattice is associated with several potential and actual spin liquid phases as a result of its strong geometric frustration. At finite temperature, these can exhibit…
Coherent propagation of quasiparticles in topological spin liquids at finite temperature
Oliver Hart, Yuan Wan, Claudio Castelnovo
The appearance of quasiparticle excitations with fractional statistics is a remarkable defining trait of topologically ordered systems. In this work, we investigate the experimenta…
Long-range Coulomb interactions and nonhydrodynamic behavior in thermal quenches in spin ice
Oliver Hart, Marianne Haroche, Claudio Castelnovo
When spin ice systems undergo a sudden thermal quench, they have been shown to enter long-lived metastable states where the monopole excitations form so-called noncontractible pair…
Generalised route to effective field theories for quantum systems with local constraints
Attila Szabó, Garry Goldstein, Claudio Castelnovo +1
Some of the exciting phenomena uncovered in strongly correlated systems in recent years - for instance quantum topological order, deconfined quantum criticality, and emergent gauge…
Role of defects in determining the magnetic ground state of ytterbium titanate
D. F. Bowman, E. Cemal, T. Lehner +11
Pyrochlore systems are ideally suited to the exploration of geometrical frustration in three dimensions, and their rich phenomenology encompasses topological order and fractional e…