[seminar] Tomislav Prokopec (Wed 31st May, 11:00, F-201)

[Ivica Smolic]

Dear colleagues,

I would like to invite you to the following seminar,

Dr. Tomislav Prokopec
(Institute for Theoretical Physics, Utrecht, The Netherlands)

"Weyl symmetry in the standard model and gravity"

Wednesday 31st May, 11:00h, F-201

Weyl symmetry is realized in Cartan-Einstein gravity both at the 
kinematical and dynamical level because of geometric torsion. The 
symmetry can be naturally extended to matter fields by a suitable 
generalization of covariant derivative and by supplementing a dilaton 
field. Fermionic matter sources skew symmetric torsion while scalar 
matter sources vectorial torsion trace (gauge fields do not trace 
torsion). This implies that, when matter fields are integrated out, 
vectorial torsion and skew symmetric torsion become dynamical. Next, I 
will discuss Ward identities and how trace anomaly can be reinterpreted 
in this theory. Finally, I will discuss some physical implications of 
our results, in particular how torsion can be seen by conventional 
gravitational wave detectors.


Best regards,
Ivica Smolić
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