28 May 2017 to 2 June 2017
Queen's University
America/Toronto timezone
Welcome to the 2017 CAP Congress! / Bienvenue au congrès de l'ACP 2017!

Coleman-Weinberg mechanism in a gravitational Weyl invariant theory

29 May 2017, 12:00
Botterell B143 (Queen's University)

Botterell B143

Queen's University

CLOSED - Oral (Non-Student) / orale (non-étudiant) Theoretical Physics / Physique théorique (DTP-DPT) M2-4 General Relativity I (DTP) | Relativité générale I (DPT)


Prof. Ariel Edery (Bishop's University)


We consider a massless conformally (Weyl) invariant classical action consisting
of a magnetic monopole coupled to gravity in an anti-de Sitter background spacetime. We implement quantum corrections and this breaks the conformal (Weyl) symmetry, introduces a length scale via the process of renormalization and leads to the trace anomaly. We calculate the one-loop effective potential and determine from it the vacuum expectation value (VEV). Spontaneous symmetry breaking is radiatively induced à la Coleman-Weinberg and the scalar
coupling constant is exchanged for the dimensionful VEV via dimensional transmutation. An important result is that the Ricci scalar of the AdS background spacetime is determined entirely by the value of the VEV.

Primary author

Prof. Ariel Edery (Bishop's University)


Dr Noah Graham (Middlebury College)

Presentation Materials