Science· 2021Q1
Probing topological spin liquids on a programmable quantum simulator
- 822citations
- Q1SCImago
- 2021year
Short summary
A 219-atom programmable quantum simulator was used to create and detect a quantum spin liquid phase, a state of matter with topological order and long-range entanglement, by placing atoms on a kagome lattice and using Rydberg blockade to induce frustration.
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Key points
- A 219-atom programmable quantum simulator was employed to study quantum spin liquids.
- Atoms were placed on the links of a kagome lattice, and Rydberg blockade was used to create frustrated quantum states.
- Topological string operators were used to detect topological order and quantum correlations, confirming the onset of a quantum spin liquid phase.
- The findings enable controlled experimental exploration of topological matter and protected quantum information processing.
AI-generated from the title and abstract; the full text is not read.
Abstract
Quantum spin liquids, exotic phases of matter with topological order, have been a major focus in physics for the past several decades. Such phases feature long-range quantum entanglement that can potentially be exploited to realize robust quantum computation. We used a 219-atom programmable quantum simulator to probe quantum spin liquid states. In our approach, arrays of atoms were placed on the links of a kagome lattice, and evolution under Rydberg blockade created frustrated quantum states with no local order. The onset of a quantum spin liquid phase of the paradigmatic toric code type was detected by using topological string operators that provide direct signatures of topological order and quantum correlations. Our observations enable the controlled experimental exploration of topological matter and protected quantum information processing.
The authors' abstract, as published at the source. Science, 2021 · DOI ↗
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Field: Condensed Matter Physics
Condensed Matter PhysicsPhysics and Astronomy