Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session G56: Quantum Spin Liquids, Theory I
11:30 AM–2:30 PM,
Tuesday, March 7, 2023
Room: Room 304
Sponsoring
Unit:
GMAG
Chair: Radu Coldea, University of Oxford Physics Department
Abstract: G56.00006 : Magnetoelectric polarizability in bosonic insulators
12:30 PM–12:42 PM
Presenter:
Gautam K Naik
(Boston University)
Authors:
Gautam K Naik
(Boston University)
Michael Flynn
(Boston University)
Christopher R Laumann
(Boston University)
- Systems that break time reversal and inversion symmetries (PT) can have a magnetoelectric response. The magnetoelectric polarizibility of a system of noninteracting fermions in 3 dimensions has been studied in the context of the theta response of topological insulators. We show that an insulator of U(1) charged bosons can also exhibit a magnetoelectric response in the absence of P and T symmetries and compute the corresponding linear response tensor. Such a response may lead to effective axion electrodynamics in U(1) spin liquids coupled with appropriate symmetry breaking orders.
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