A Dipolar Chiral Spin Liquid on the Breathed Kagome Lattice

2026/03/26 by Francisco Machado, Sabrina Chern, Michael P. Zaletel +1 · 1 voice
Physics and Astronomy · #cond-mat.quant-gas #cond-mat.str-el #physics.atom-ph #quant-ph

paper · pdf

arxiv published 2026/03/26 · arxiv updated 2026/06/19

Abstract

Continuous control over lattice geometry, when combined with long-range interactions, offers a powerful yet underexplored tool to generate highly frustrated quantum spin systems. By considering long-range dipolar antiferromagnetic interactions on a breathed Kagome lattice, we demonstrate how these tools can be leveraged to stabilize a chiral spin liquid. We support this prediction with large-scale density-matrix renormalization group calculations and explore the surrounding phase diagram, identifying a route to adiabatic preparation via a locally varying magnetic field. At the same time, we identify the relevant low-energy degrees of freedom in each unit cell, providing a complementary language to study the chiral spin liquid. Finally, we carefully analyze its stability and signatures in finite-sized clusters, proposing direct, experimentally viable measurements of the chiral edge mode in both Rydberg atom and ultracold polar molecule arrays.

Citations

• Architectural mechanisms of a universal fault-tolerant quantum computer
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• Infinite size density matrix renormalization group, revisited
• Lieb-Robinson bounds and the generation of correlations and topological quantum order
• A toolbox for lattice spin models with polar molecules
• Anyons in an exactly solved model and beyond
• Quantum spin liquids
• Density-matrix algorithms for quantum renormalization groups
• Equivalence of the resonating-valence-bond and fractional quantum Hall states
• Observation of a single-beam gradient force optical trap for dielectric particles
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Discussions

• New paper Alert: A Dipolar Chiral Spin Liquid on the Breathed Kagome Lattice (arxiv.org/abs/2603.25784) In short: long-range dipolar interactions + lattice control = chiral spin liquid (CSL) (1/3) [bsky, 2 points, 1 comments]