Static hole in a critical antiferromagnet: field-theoretic renormalization group

2000/11/14 by Subir Sachdev · 1 citation
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Theoretical and Computational Physics #cond-mat.str-el #cond-mat.supr-con #hep-th

paper · pdf · doi:10.1016/s0921-4534(01)00198-8

published as Physica C357 (2001) 78 · 6 pages, 2 figures; for field theory afficionados; all others see cond-mat/0011232; Proceedings of the 13th International Symposium on Superconductivity, October 2000, Tokyo

arxiv created 2000/11/14 · openalex publication_date 2001/09/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We consider the quantum field theory of a single, immobile, spin S hole coupled to a two-dimensional antiferromagnet at a bulk quantum critical point between phases with and without magnetic long-range order. We present an alternative derivation of its two-loop beta function; the results agree completely with earlier work (M. Vojta et al, cond-mat/9912020), and also determine a new anomalous dimension of the hole creation operator.

Citations

• Quantum impurity dynamics in two-dimensional antiferromagnets and superconductors
• Spin Orthogonality Catastrophe in Two-Dimensional Antiferromagnets and Superconductors

Cited by

• Strange metals and the AdS/CFT correspondence

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