Triangle Seminars
Monday, 11 Feb 2013
Convexity and Liberation at Large Spin
📍 London
Zohar Komargodski
(Weizmann and IAS Princeton)
The QCD Flux Tube
📍 London
Zohar Komargodski
(Weizmann and IAS Princeton)
Wednesday, 13 Feb 2013
Superconformal couplings of non-abelian tensor and hypermultiplets in six dimensions
📍 London
Robert Wimmer
(YITP Stony Brook)
Abstract:
We construct six-dimensional (1,0) superconformal models with non-abelian gauge couplings for multiple tensor and hypermultiplets. The non-abelian gauge invariance for the two-form potentials is achieved by the introduction of a hierarchy of forms up to degree four, where the three and four forms are non-dynamical. This circumvents certain no-go theorems and turns out to be essential also for the formulation of supersymmetry. The inclusion of the hypermultiplets completes the field content to that of superconformal (2,0) theories of multiple M5 branes, though only (1,0) supersymmetry is manifestly realized. The interacting tensor and hypermultiplets form together with the other (non-dynamical) forms a new on-shell representation of the (1,0) supersymmetry algebra. In general these models provide only equations of motions. For a subclass also a Lagrangian formulation exists which captures certain aspects of the first order dynamics.
We construct six-dimensional (1,0) superconformal models with non-abelian gauge couplings for multiple tensor and hypermultiplets. The non-abelian gauge invariance for the two-form potentials is achieved by the introduction of a hierarchy of forms up to degree four, where the three and four forms are non-dynamical. This circumvents certain no-go theorems and turns out to be essential also for the formulation of supersymmetry. The inclusion of the hypermultiplets completes the field content to that of superconformal (2,0) theories of multiple M5 branes, though only (1,0) supersymmetry is manifestly realized. The interacting tensor and hypermultiplets form together with the other (non-dynamical) forms a new on-shell representation of the (1,0) supersymmetry algebra. In general these models provide only equations of motions. For a subclass also a Lagrangian formulation exists which captures certain aspects of the first order dynamics.
Posted by: KCL
Supersymmetry invariants and UV divergences in N=4 supergravity
Guillaume Bossard
(CPHT, Ecole Polytechnique)
Abstract:
I shall discuss the structure of supersymmetry invariants in N=4 supergravity coupled to n vector multiplets, and in particular their transformation properties with respect to duality symmetry. This will permit to discuss the anomalous Ward identities for the duality symmetry, and their consequences on the logarithmic divergences of the theory.
I shall discuss the structure of supersymmetry invariants in N=4 supergravity coupled to n vector multiplets, and in particular their transformation properties with respect to duality symmetry. This will permit to discuss the anomalous Ward identities for the duality symmetry, and their consequences on the logarithmic divergences of the theory.
Posted by: IC
Instantons in Field Theory and String Theory – Leverhulme Lectures
Massimo Bianchi
Abstract:
QMUL Graduate Lectures
QMUL Graduate Lectures
Posted by: QMW
Holomorphic blocks in 3 dimensions
📍 London
Sara Pasquetti
(Surrey)
Abstract:
This is the first Polygon meeting, which is meant to be complementary to Triangles, with local speakers.
This is the first Polygon meeting, which is meant to be complementary to Triangles, with local speakers.
Posted by: KCL