7 papers
Charge glass from supercooling topological-ordered liquid
Kouki Kimata, Harukuni Ikeda, Masafumi Udagawa
Topological order characterizes a class of quantum and classical many-body liquid states that escape the conventional classification by spontaneous symmetry breaking. Many properti…
Spinon band flattening by its emergent gauge field in quantum kagome ice
Masafumi Udagawa, Roderich Moessner
Fractional excitations provide a key to identifying sought-after topological quantum spin liquid states in realistic materials. Their single-particle dynamics already presents a ch…
Hollow Lattice Tensor Gauge Theories with Bosonic Matter
José M. Cruz, Masafumi Udagawa, Pedro Bicudo +2
Higher rank gauge theories are generalizations of electromagnetism where, in addition to overall charge conservation, there is also conservation of higher rank multipoles such as t…
Spinor ice correlation in flat-band electronic states on kagome and pyrochlore lattices with spin-orbit coupling
Hiroki Nakai, Masafumi Udagawa, Chisa Hotta
We investigate the emergence and transformation of pinch-point singularities in the excitation spectrum of electronic flat band systems on kagome and pyrochlore lattices with spin-…
Sign-reversal and non-monotonicity of chirality-related anomalous Hall effect in highly conductive metals
Ryunosuke Terasawa, Masafumi Udagawa, Hiroaki Ishizuka
The non-monotonic temperature dependence and sign reversal of chirality-related anomalous Hall effect in highly conductive metals are studied. Through the analysis of scattering ra…
Dynamic orders of a Quantum Spin Liquid at Non-zero Temperatures
Minsu Park, Masafumi Udagawa, Eun-Gook Moon
A quantum spin liquid hosts massive quantum entanglement whose identification is one of the most significant problems in physics. Yet, its detection is known to be notoriously diff…