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Quantum spin liquids

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arxiv 2310.19577 v1 pith:TQ6RQNAN submitted 2023-10-30 cond-mat.str-el

T. Lancaster This is my paper · ORCID
classification cond-mat.str-el
keywords quantumsomearticlesentanglementevidencematerialnatureneed
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A glance at recent research on magnetism turns up a curious set of articles discussing, or claiming evidence for, a state of matter called a quantum spin liquid (QSL). These articles are notable in their invocation of exotic notions of topological physics, quantum entanglement, fractional quantum numbers, anyon statistics and gauge field theories. So what is a QSL and why do we need this complicated technical vocabulary to describe it? Our aim in this article is to introduce some of these concepts and provide a discussion of what a QSL is, where it might occur in Nature and why it is of interest. As we'll see, this is a rich subject which is still in development, and unambiguous evidence for the realisation of the QSL state in a magnetic material remains hotly debated. However, the payoff in terms of the special nature of quantum entanglement in the QSL, and its diverse spectrum of unusual excitations and topological status will (at least to some extent) justify the need to engage with some powerful, occasionally abstract, technical material.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Pyrochlore NaYbO2: A potential Quantum Spin Liquid Candidate

    cond-mat.str-el 2025-01 conditional novelty 7.0 of 10

    A new pyrochlore polymorph of NaYbO2, beta-NaYbO2, was grown as single crystals and shows no magnetic order down to 0.4 K, making it a candidate quantum spin liquid.

  2. Stacking disorder in novel ABAC-stacked brochantite, Cu$_4$SO$_4$(OH)$_6$

    cond-mat.str-el 2025-01 conditional novelty 7.0 of 10

    First synthetic single crystals of brochantite display a tendency toward a new ABAC layer stacking and reveal a possible double magnetic transition near 7 K.

  3. Quench Spectroscopy of Magnetic Excitations on a Superconducting Quantum Processor

    quant-ph 2026-07 accept novelty 6.5 of 10

    Quench spectroscopy on a superconducting processor extracts magnon, bound-state and two-spinon spectra of L=101 XXZ chains, including from product states in the gapless regime without ground-state preparation.

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