3 papers
cond-mat.str-el2026
Emergence of a monopole phase in the Heisenberg model on the triangular lattice for small magnetic fields
Sasank Budaraju, Shi Feng, Josef Willsher +3
We investigate the ground-state phase diagram of the Heisenberg model on the triangular lattice under an external Zeeman field by using the variational Monte Carlo…
cond-mat.str-el2026
Tensor network study of deconfined quantum criticality in a one-dimensional spin-phonon model
Anton Romen, Josef Willsher, David Hofmeier +2
Deconfined quantum critical points (DQCPs) describe continuous transitions between ordered phases beyond the Landau paradigm. A simple example is the Néel antiferromagnet (AFM) to…
cond-mat.str-el2026
Electrical observation via spin Seebeck effect of fractionalized excitations in a magnetic insulator
Nan Tang, Josef Willsher, Stephan Glamsch +9
Fractionalized excitations are among the most striking signatures of emergence in quantum matter. While widely sought in frustrated magnets, their detection and characterization re…