University of Cambridge > Talks.cam > Wednesday HEP-GR Colloquium > Conformal bootstrap—a new way to compute in quantum field theory

Conformal bootstrap—a new way to compute in quantum field theory

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Mahdi Godazgar.

Most takes on quantum field theory start from microscopics, fundamental degrees of freedom, a Lagrangian. Conformal field theory is an exception—it focuses on the algebra of local operators and avoids any reference to the Lagrangian. This leads to a method for doing practical CFT calculations—the conformal bootstrap. The method is 40 years old, though it seemed limited to D=1+1 dimensions where the conformal group is infinite. Recent work shows how to set it up for any D. Applications are rapidly expanding, and the method will become a standard QFT tool next to the RG, the epsilon-expansion, and the 1/N expansion. We will highlight the world-record determination of the 3D Ising critical exponents obtained by the conformal bootstrap.

This talk is part of the Wednesday HEP-GR Colloquium series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2019 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity