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arXiv · 1307.6860

Vector boson excitations near deconfined quantum critical points

Yejin Huh·Philipp Strack·Subir Sachdev
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Abstract

We show that the N\'eel states of two-dimensional antiferromagnets have low energy vector boson excitations in the vicinity of deconfined quantum critical points. We compute the universal damping of these excitations arising from spin-wave emission. Detection of such a vector boson will demonstrate the existence of emergent topological gauge excitations in a quantum spin system.

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Yejin Huh, Philipp Strack, Subir Sachdev. 2013-07-25. Vector boson excitations near deconfined quantum critical points. https://doi.org/10.1103/physrevlett.111.166401

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