Lectures on the renormalisation group

2009 ◽  
pp. 7-94 ◽  
Author(s):  
David Brydges
Keyword(s):  
Renormalisation Group

scholarly journals Renormalisation group aspects of η′ → γγ

1992 ◽  
Vol 381 (1-2) ◽  
pp. 3-22 ◽  
Author(s):  
G.M. Shore ◽  
G. Veneziano
Keyword(s):  
Renormalisation Group

scholarly journals ANEC in λϕ4 theory

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Teresa Bautista ◽  
Lorenzo Casarin ◽  
Hadi Godazgar
Keyword(s):  
Critical Points ◽  
Energy Condition ◽  
Null Energy Condition ◽  
Renormalisation Group ◽  
Quartic Coupling ◽  
Third Order ◽  
Expectation Value ◽  
Scalar State

Abstract Motivated by the goal of applying the average null energy condition (ANEC) to renormalisation group flows, we calculate in λϕ4 theory the expectation value of the ANEC operator in a particular scalar state perturbatively up to third order in the quartic coupling and verify the expected CFT answer. The work provides the technical tools for studying the expectation value of the ANEC operator in more interesting states, for example tensorial states relevant to the Hofman-Maldacena collider bounds, away from critical points.

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