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July 4, 2026Science

Observation of disorder-free localization using a (2+1)D lattice gauge theory on a quantum processor

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Authors

GCGoogle Quantum AI and CollaboratorsGGGaurav GyawaliSKShashwat Kumar

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Overview

Randomized trial observes disorder-free localization in quantum circuits, suggesting a method for improved disorder sampling.

Key Points

  • This research aims to explore disorder-free localization in quantum many-body systems using lattice gauge theories.
  • Investigated quantum circuits initialized in tunable superpositions over disorder configurations.
  • Utilized entropy measurements to compare superposition-prepared and directly sampled states.
  • Developed an algorithm for polynomial speedup in sampling disorder configurations.
  • Observed localization in the absence of disorder in one and two dimensions.
  • Perturbations did not diffuse during disorder-free evolution (p<0.05).
  • Superposition-prepared states exhibited fundamentally different entropy characteristics compared to direct disorder samples.

Cite This Study

Collaborators et al. (2026) studied this question.

synapsesocial.com/papers/6a48a36b89561a0c2d78d61chttps://doi.org/10.1126/science.adr9680
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