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SUMMARY:Christian Jepsen (Stony Brook)
DTSTART:20210309T150000Z
DTEND:20210309T160000Z
DTSTAMP:20260513T204334Z
UID:CCTP_HEP/38
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CCTP_HEP/38/
 ">Tensor Models and Limit Cycles</a>\nby Christian Jepsen (Stony Brook) as
  part of CCTP HEP Seminars\n\n\nAbstract\nMatrix and tensor models with U(
 N) or O(N) symmetry offer a surprise on analytic continuation in N: the ex
 istence of fixed points of the beta functions where the the coupling const
 ants gi are real but the scaling dimensions\, as determined by the eigenva
 lues of the Jacobian matrix ∂βi/∂gj\, are complex. When these complex
  eigenvalues cross the imaginary axis\, a Hopf bifurcation takes place and
  gives rise to a limit cycle in the RG flow. In this talk\, I will present
  an overview of this phenomenon and present a number of examples.\n
LOCATION:https://researchseminars.org/talk/CCTP_HEP/38/
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