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BEGIN:VEVENT
DTSTAMP:20260918T121009Z
LAST-MODIFIED:20130918T145008Z
DTSTART:20130925T194500Z
DTEND:20130925T204500Z
UID:event1152@bu.edu
URL:http://physics.bu.edu/internal/events/show/1152
SUMMARY:Weyl consistency conditions
DESCRIPTION:Featuring Andreas Stergiou\, Yale University\n\nPart of the HET
	 Seminar Series.\n\nAbstract: Applying the Wess-Zumino consistency conditio
	ns to the Weyl group leads to powerful constraints on the renormalization-g
	roup running of various parameters of quantum field theories (QFTs). Indeed
	\, both Zamolodchikov's c-theorem in 2d as well as the perturbative 4d a-th
	eorem can be obtained with the use of Weyl consistency conditions. In this 
	talk we will review these methods in detail\, and we will apply them to QFT
	s in any even d. We will find a condition that may serve as a generalizatio
	n of the c and a theorems to any even d\, and show that such a generalizati
	on hinges on proving positivity of a certain "metric" in the space of coupl
	ings. The recently-developed 6d case will be used repeatedly along the way 
	to illustrate various essential points.
LOCATION:PRB 595\, 3 Cummington Mall\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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