This note is a short review of the way Hitchin systems appear in four-dimensional N = 2 supersymmetric field theory. The literature on the Hitchin system and its role in quantum field theory is a vast one. Restricting attention just to the role of Hitchin systems in N = 2 supersymmetric field theory (thus neglecting such fascinating topics as T-duality on the Hitchin fibration and its relation ...

Using Hartree-Fock Su-Sheriffer-Heeger (HF-SSH) model, we have studied the dependence of the energies of the ground (magnetic triplet state) and the first exited (nonmagnetic singlet state) states of the size-2 trigonal zigzag graphene nanoflake (size-2 NF) on the intensity of an external in plane static electric field at zero temperature. We identify a transition from the magnetic triplet stat...

We study the solutions to Klein–Gordon equation for massive scalar field in universal covering space of a two-dimensional anti-de Sitter space. For certain values mass parameter, we impose suitable set boundary conditions, which make spatial component operator self-adjoint. This makes time-evolution classical well defined. Then, use transformation properties under isometry group theory, namely,...