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Updated: Jun 24, 2025

Setting Limits on Supersymmetry Using Simplified Models

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

Higher-Form Symmetries under Weak Measurement.

Kaixiang Su¹, Nayan Myerson-Jain¹, Chong Wang²

¹Department of Physics, University of California, Santa Barbara, California 93106, USA.

Physical Review Letters

|June 3, 2024

Summary

This summary is machine-generated.

Weak local quantum measurements can drive phase transitions in systems with spontaneously broken higher-form symmetries. These transitions suppress symmetry breaking and reduce charge fluctuations, with some exhibiting self-duality.

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Area of Science:

Quantum Information Science
Condensed Matter Physics

Background:

Symmetries play a crucial role in understanding quantum systems.
Higher-form symmetries are generalizations of familiar symmetries with unique properties.
The effect of local quantum measurements on symmetry breaking is an active area of research.

Purpose of the Study:

To investigate the fate of quantum states with spontaneously broken higher-form symmetries under weak local quantum measurements.
To determine if such measurements can induce phase transitions.
To analyze the properties of these transitions and their relation to symmetry breaking.

Main Methods:

Analysis of quantum states with spontaneously broken higher-form symmetries.
Application of weak local quantum measurements.
Utilizing duality tools to analyze phase transitions.
Investigating fixed points and self-duality properties.

Main Results:

Weak local quantum measurements can drive a phase transition in systems with spontaneously broken higher-form symmetries.
The phase transition suppresses the spontaneous breaking of the 1-form symmetry.
Symmetry charge fluctuations are weakened by these measurements.
Some transitions exhibit a line of fixed points with self-duality.

Conclusions:

Weak measurements can fundamentally alter the symmetry properties of quantum systems.
The study reveals a novel mechanism for inducing phase transitions via measurement.
The findings offer insights into the interplay between quantum measurement, symmetry, and phase transitions, with potential implications for quantum information and condensed matter physics.