Publicação: Scalar quantum field theory in disordered media
Carregando...
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Resumo
A free massive scalar field in inhomogeneous random media is investigated. The coefficients of the Klein-Gordon equation are taken to be random functions of the spatial coordinates. The case of a disordered medium modeled by centered stationary and Gaussian processes is analyzed. After performing the averages over the random functions, we obtain the two-point and the four-point Green's functions of the model up to one loop. The disordered scalar quantum field theory becomes qualitatively similar to a λφ4 self-interacting theory with a frequency-dependent coupling. © 2011 American Physical Society.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 83, n. 12, 2011.
