743 citations · 3k across the 37 of their papers we have counts for
3 papers · 1 filter
Finite-Size Spectral Signatures of Order by Quantum Disorder: A Perspective from Anderson's Tower of States
Subhankar Khatua, Griffin C. Howson, Michel J. P. Gingras +1
In frustrated magnetic systems with a subextensive number of classical ground states, quantum zero-point fluctuations can select a unique long-range ordered state, a celebrated phe…
Anharmonic Collective Oscillations in Isotropic Spin Systems and their Spectroscopic Signatures
Anna Fancelli, Matías G. Gonzalez, Subhankar Khatua +4
Spin waves are the fundamental excitations in magnetically ordered spin systems and are ubiquitously observed in magnetic materials. However, the standard understanding of spin wav…
Universal temperature-dependent power law excitation gaps in frustrated quantum spin systems harboring order-by-disorder
Alexander Hickey, Jeffrey G. Rau, Subhankar Khatua +1
When magnetic moments are subject to competing or frustrated interactions, continuous degeneracies that are not protected by any symmetry of the parent Hamiltonian can emerge at th…