158 citations · 3.2k across the 126 of their papers we have counts for
5 papers · 1 filter
Fuzzy Nambu-Goldstone Physics
A. P. Balachandran, G. Immirzi
In spacetime dimensions larger than 2, whenever a global symmetry G is spontaneously broken to a subgroup H, and G and H are Lie groups, there are Nambu-Goldstone modes described b…
Dirac Operators on Coset Spaces
A. P. Balachandran, Giorgio Immirzi, Joohan Lee +1
The Dirac operator for a manifold Q, and its chirality operator when Q is even dimensional, have a central role in noncommutative geometry. We systematically develop the theory of…
Obstruction to D-brane topology change
Garnik G. Alexanian, A. P. Balachandran, Pedro J. Silva
A study of the relation between topology change, energy and Lie algebra representations for fuzzy geometry in connection to -theory is presented. We encounter two different type…
The Star Product on the Fuzzy Supersphere
A. P. Balachandran, S. Kurkcuoglu, E. Rojas
The fuzzy supersphere is a finite-dimensional matrix approximation to the supersphere incorporating supersymmetry exactly. Here the star-product of functi…
Non-abelian Topological Strings and Metastable States in Linear Sigma Model
A. P. Balachandran, S. Digal
Non-abelian (NA) topological string defects exist in QCD with the spontaneous chiral symmetry breaking . Anomaly effects lead to domain walls…