Conformal Dimensions via Large Charge Expansion

Banerjee, Debasish; Chandrasekharan, Shailesh; Orlando, Domenico (2018). Conformal Dimensions via Large Charge Expansion. Physical review letters, 120(6) American Physical Society 10.1103/PhysRevLett.120.061603

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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 lowest operator with a fixed charge Q are almost entirely determined by the first few terms in the series.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Banerjee, Debasish; Chandrasekharan, Shailesh and Orlando, Domenico

Subjects:

500 Science > 530 Physics

ISSN:

0031-9007

Publisher:

American Physical Society

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

25 Mar 2019 17:32

Last Modified:

30 Oct 2019 05:29

Publisher DOI:

10.1103/PhysRevLett.120.061603

ArXiv ID:

1707.00711

BORIS DOI:

10.7892/boris.125067

URI:

https://boris.unibe.ch/id/eprint/125067

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