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Updated: Apr 30, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Entanglement monotonicity and the stability of gauge theories in three spacetime dimensions
1Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106, USA.
Abstract:
We employ the recent results on the generalization of the central charge theorem to three spacetime dimensions to derive nonperturbative results for several strongly interacting quantum field theories, including quantum electrodynamics (QED-3), and the theory corresponding to certain quantum phase transitions in condensed matter systems. In particular, by demanding that the universal constant part of the entanglement entropy decreases along the renormalization group flow (F theorem), we find sufficient conditions for the stability of QED-3 against chiral symmetry breaking and confinement. Using similar ideas, we derive strong constraints on the nature of quantum critical points in condensed matter systems with topological order.
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