3 papers
cond-mat.str-el2026
Hearing the light: stray-field noise from the emergent photon in quantum spin ice
Gautam K. Naik, Jonathan N. Hallén, Nishan C. Jayarama +2
Decisive experimental confirmation of the quantum spin liquid phase in quantum spin ice remains an outstanding challenge. In this work, we propose stray-field magnetometry a…
cond-mat.str-el2025
Theta electromagnetism in quantum spin ice: Microscopic analysis of improper symmetries
Gautam K. Naik, Jonathan N. Hallén, Chris R. Laumann
gauge theories, including conventional Maxwell electromagnetism, allow -terms when parity and time-reversal symmetry are broken. In condensed matter systems, the physics…
cond-mat.str-el2024
Synthetic magnetoelectric response of lattice bosonic insulators
Gautam K. Naik, Michael O. Flynn, Chris R. Laumann
In the absence of parity and time-reversal symmetries, insulators can exhibit magnetoelectric responses, in which applied magnetic fields induce charge polarization and, conversely…