Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session J46: Spin Liquids
3:00 PM–5:36 PM,
Tuesday, March 16, 2021
Sponsoring Unit: DCMP
Chair: Alexander Wietek, Simons Foundation
Abstract: J46.00005 : Cavity-induced quantum spin liquids
3:48 PM–4:00 PM
(Max Planck Institute for the Physics of Complex Systems)
In this talk, I will propose a novel mechanism to stabilise quantum spin liquid states by exploiting the coupling of quantum magnets to the quantised light of an optical cavity.
The interplay between the quantum fluctuations of the electromagnetic field and the strongly correlated electrons results in a tunable long-range interaction between localized spins. This cavity-induced frustration robustly stabilises spin liquid states, which occupy an extensive region in the phase diagram spanned by the range and strength of the tailored interaction. Remarkably, this occurs even in originally unfrustrated systems, as we showcase for the Heisenberg model on the square lattice.
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