2003/07/30 by R. González Felipe, Felipe, R. Gonzalez, Gonçalo M. Marques +3
Engineering · Physics and Astronomy · #Characterization and Applications of Magnetic Nanoparticles #Theoretical and Computational Physics #Statistical Mechanics and Entropy
paper · pdf · doi:10.48550/arxiv.hep-th/0307290
The physics of spontaneous chiral symmetry breaking in the case of the simultaneous presence of a magnetic field and a fermionic quartic interaction is discussed for both local and nonlocal kernels in 2+1 and 3+1 dimensions. The approach is based on the use of Valatin-Bogoliubov canonical transformations, which allow, in the absence of fermionic quartic terms, to completely diagonalize the Hamiltonian and construct the vacuum state.