Degenerate and critical Bloch branes

Journal Article · Fri Aug 15 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.043526· OSTI ID:21250474

Souza Dutra, A de ^[1]; Amaro de Faria, Jr, A C; Hott, M ^[2]

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1. Abdus Salam ICTP, Strada Costiera 11, Trieste, I-34100 Italy (Italy)
2. UNESP-Campus de Guaratingueta-DFQ, Departmento de Fisica e Quimica, 12516-410 Guaratingueta SP Brasil (Brazil)

In the last few years a number of works reported the appearance of thick branes with internal structure, induced by the parameter which controls the interaction between two scalar fields coupled to gravity in (4,1) dimensions in warped space-time with one extra dimension. Here we show that one can implement the control over the brane thickness without needing to change the potential parameter. On the contrary, this is going to be done by means of the variation of a parameter associated with the domain wall degeneracy. We also report the existence of novel and qualitatively different solutions for a critical value of the degeneracy parameter, which could be called critical Bloch branes.

• OSTI ID: 21250474
• Journal Information: Physical Review. D, Particles Fields, Vol. 78, Issue 4; Other Information: DOI: 10.1103/PhysRevD.78.043526; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANES
GRAVITATION
MATHEMATICAL SOLUTIONS
POTENTIALS
QUANTUM MECHANICS
SCALAR FIELDS
SPACE-TIME
THICKNESS
VARIATIONS