University of Cambridge > Talks.cam > Quantum Fields and Strings Seminars > On Renormalization Group Flows in Four Dimensions

  Browse A-Z

Log in

Googledetails Microsoftdetails

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹī¸ Information

On Renormalization Group Flows in Four Dimensions

Download to your calendar using vCal

If you have a question about this talk, please contact Sungjay Lee .

We discuss some general aspects of renormalization group flows in four dimensions. Every such flow can be reinterpreted in terms of a spontaneously broken conformal symmetry. We analyze in detail the consequences of trace anomalies for the effective action of the Nambu-Goldstone boson of broken conformal symmetry. While the c-anomaly is algebraically trivial, the a-anomaly is “non-Abelian,” and leads to a positive-definite universal contribution to the S-matrix of 2->2 dilaton scattering. Unitarity of the S-matrix results in a monotonically decreasing function that interpolates between the Euler anomalies in the ultraviolet and the infrared, thereby establishing the a-theorem.

This talk is part of the Quantum Fields and Strings Seminars series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

Johnson Matthey Lecture Theatre, Department of Chemical Engineering & Biotechnology, Philippa Fawcett Drive, Cambridge CB3 0AS problogs Faculty of Education, 184 Hills Road, Cambridge, CB2 8PQ, GS1

Other talks

Toward affordable preventive healthcare Online Causal Inference Semina LMB Seminar - Mechanisms of mRNA packaging and export Gastroenterology and Acute Medicine Group Presentation 5 Morning Break
 

Š 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity