Conformal invariance in the long-range Ising model

By M. Paulos, S. Rychkov, B. C. Rees, Bernardo Zan. 2015

132 citations recorded by the source corpus.

We consider the question of conformal invariance of the long-range Ising model at the critical point. The continuum description is given in terms of a nonlocal field theory, and the absence of a stress tensor invalidates all of the standard arguments for the enhancement of scale invariance to conformal invariance. We however show that several correlation functions, computed to second order in the epsilon expansion, are nontrivially consistent with conformal invariance. We proceed to give a proof of conformal invariance to all orders in the epsilon expansion, based on the description of the long-range Ising model as a defect theory in an auxiliary higher-dimensional space. A detailed review of conformal invariance in the d-dimensional short-range Ising model is also included and may be of independent interest.

Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/2c627df1ab86cd932b7f11e3e4362e21b761c2af

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In Atomic and Molecular Physics, and Optics

  1. S. Rychkov
  2. Bernardo Zan
  3. L. Rastelli
  4. David Simmons-Duffin

In Condensed Matter Physics

  1. S. Rychkov
  2. Bernardo Zan
  3. L. Rastelli
  4. David Simmons-Duffin
  5. David Poland

In Nuclear and High Energy Physics

  1. L. Rastelli
  2. Bernardo Zan
  3. S. Rychkov
  4. C. Behan
  5. David Simmons-Duffin
  6. David Poland
  7. A. Vichi
  8. D. Gaiotto

Citations in the corpus