Conformal Dimensions via Large Charge Expansion.

  title={Conformal Dimensions via Large Charge Expansion.},
  author={Debasish Banerjee and Shailesh Chandrasekharan and Domenico Orlando},
  journal={Physical review letters},
  volume={120 6},
We construct an efficient Monte Carlo algorithm that overcomes the severe signal-to-noise ratio problems and helps us to accurately compute the conformal dimensions of large-Q fields at the Wilson-Fisher fixed point in the O(2) universality class. Using it, we verify a recent proposal that conformal dimensions of strongly coupled conformal field theories with a global U(1) charge can be obtained via a series expansion in the inverse charge 1/Q. We find that the conformal dimensions of the… 

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