ArticleNature communications2023
Entanglement asymmetry as a probe of symmetry breaking.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed.
- Giant Mpemba Effect via Weak Interactions in Open Quantum Systems.Entropy (Basel, Switzerland) · 2026Article
- Stark Many-Body Localization-Induced Quantum Mpemba Effect.Entropy (Basel, Switzerland) · 2026Article
- Study on quantum thermalization from thermal initial states in a superconducting quantum computer.Scientific reports · 2025Article
- Quantum Mpemba Effect from Non-Normal Dynamics.Entropy (Basel, Switzerland) · 2025Article
- Measurement-Induced Symmetry Restoration and Quantum Mpemba Effect.Entropy (Basel, Switzerland) · 2025Article
- Observation of quantum strong Mpemba effect.Nature communications · 2025Article
- Entropic Order Parameters for Categorical Symmetries in 2D-CFT.Entropy (Basel, Switzerland) · 2024Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
Symmetry and symmetry breaking are two pillars of modern quantum physics. Still, quantifying how much a symmetry is broken is an issue that has received little attention. In extended quantum systems, this problem is intrinsically bound to the subsystem of interest. Hence, in this work, we borrow methods from the theory of entanglement in many-body quantum systems to introduce a subsystem measure of symmetry breaking that we dub entanglement asymmetry. As a prototypical illustration, we study the entanglement asymmetry in a quantum quench of a spin chain in which an initially broken global U(1) symmetry is restored dynamically. We adapt the quasiparticle picture for entanglement evolution to the analytic determination of the entanglement asymmetry. We find, expectedly, that larger is the subsystem, slower is the restoration, but also the counterintuitive result that more the symmetry is initially broken, faster it is restored, a sort of quantum Mpemba effect, a phenomenon that we show to occur in a large variety of systems.
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Registered trials
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