Noncommutative gravitational quantum well

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

bertolami, o (Autor) Outra; rosa, jg (Autor) Outra; de aragao, cml (Autor) Outra; castorina, p (Autor) Outra; zappala, d (Autor) Outra

Revista

Título: Physical Review D - Particles, Fields, Gravitation and Cosmology

Vol. 72 Nº 9

Páginas: 1-9

ISSN: 1550-7998

Editora: American Physical Society

Indexação

ISI Web of Knowledge - 249 Citações

Scopus - 262 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-000-2QJ

DOI: 10.1103/physrevd.72.025010

Abstract (EN): We study noncommutative geometry at the quantum mechanics level by means of a model where noncommutativity of both configuration and momentum spaces is considered. We analyze how this model affects the problem of the two-dimensional gravitational quantum well and use the latest experimental results for the two lowest energy states of neutrons in the Earth's gravitational field to establish an upper bound on the fundamental momentum scale introduced by noncommutativity, namely, root eta less than or similar to 1 meV/c, a value that can be improved in the future by up to 3 orders of magnitude. We show that the configuration space noncommutativity has, in leading order, no effect on the problem. We also analyze some features introduced by the model, especially a correction to the presently accepted value of Planck's constant to 1 part in 10(24).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9