Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-12-27
Class.Quant.Grav. 16 (1999) 1417-1433
Physics
High Energy Physics
High Energy Physics - Theory
18 pages, Latex, 2 ps figures
Scientific paper
10.1088/0264-9381/16/4/029
We study a model of free massless scalar fields on a two dimensional cylinder with metric that admits a change of signature between Lorentzian and Euclidean type (ET), across the two timelike hypersurfaces (with respect to Lorentzian region). Considering a long strip-shaped region of the cylinder, denoted by an angle \theta, as the signature changed region it is shown that the energy spectrum depends on the angle \theta and in a sense differs from ordinary one for low energies. Morever diffeomorphism algebra of corresponding infinite conserved charges is different from '' Virasoro'' algebra and approaches to it at higher energies. The central term is also modified but does not approach to the ordinary one at higher energies.
Darabi Farhad
Jafarizadeh Mohammad Ali
Rezaei-Aghdam A.
No associations
LandOfFree
Diffeomorphism algebra of two dimensional free massless scalar field with signature change does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Diffeomorphism algebra of two dimensional free massless scalar field with signature change, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diffeomorphism algebra of two dimensional free massless scalar field with signature change will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-145432