scholarly journals Massless fermions localization on domain walls

2019 ◽  
Vol 66 (1) ◽  
pp. 77 ◽  
Author(s):  
R. Guerrero ◽  
R. O. Rodriguez ◽  
F. Carreras
Keyword(s):  
Domain Walls ◽  
Yukawa Interaction ◽  
De Sitter ◽  
Gravitational Repulsion ◽  
Yukawa Term ◽  
Matter Fields ◽  
Massless Fermions

Massless fermions on scalar domain walls are considered. Two walls are established, corresponding to 5-dimensional static spacetime asymptotically Anti de-Sitter, differentiated  by the symmetry around the wall, and in each case massless chiral fermions are coupled to the wall by a Yukawa term. We identify a normalizable state associated to the migration of fermions toward the edge of the wall. This effect is generated by the competition between the Yukawa interaction and the gravitational repulsion on the matter fields, and it is independent of the $Z_2$ symmetry of the wall.

scholarly journals NUMERICAL SOLUTIONS IN 5D STANDING WAVE BRANEWORLD

2013 ◽  
Vol 28 (20) ◽  
pp. 1350092 ◽  
Author(s):  
MERAB GOGBERASHVILI ◽  
OTARI SAKHELASHVILI ◽  
GIORGI TUKHASHVILI
Keyword(s):  
Standing Wave ◽  
Numerical Solutions ◽  
Braneworld Model ◽  
The Right ◽  
Matter Fields ◽  
Massless Fermions ◽  
Kaluza Klein

Within the 5D standing wave braneworld model numerical solutions of the equations for matter fields with various spins are found. It is shown that corresponding action integrals are factorizable and convergent over the extra coordinate, i.e. 4D fields are localized on the brane. We find that only left massless fermions are localized on the brane, while the right fermions are localized in the bulk. We demonstrate also quantization of Kaluza–Klein excited modes in our model.

scholarly journals p-ADIC AND ADELIC MINISUPERSPACE QUANTUM COSMOLOGY

2002 ◽  
Vol 17 (10) ◽  
pp. 1413-1433 ◽  
Author(s):  
GORAN S. DJORDJEVIĆ ◽  
BRANKO DRAGOVICH ◽  
LJUBIŠA D. NEŠIĆ ◽  
IGOR V. VOLOVICH
Keyword(s):  
Quantum Mechanics ◽  
Cosmological Constant ◽  
Quantum Cosmology ◽  
Quantum Effects ◽  
De Sitter Space ◽  
Cosmological Models ◽  
De Sitter ◽  
Adelic Quantum Mechanics ◽  
Matter Fields

We consider the formulation and some elaboration of p-adic and adelic quantum cosmology. The adelic generalization of the Hartle–Hawking proposal does not work in models with matter fields. p-adic and adelic minisuperspace quantum cosmology is well defined as an ordinary application of p-adic and adelic quantum mechanics. It is illustrated by a few cosmological models in one, two and three minisuperspace dimensions. As a result of p-adic quantum effects and the adelic approach, these models exhibit some discreteness of the minisuperspace and cosmological constant. In particular, discreteness of the de Sitter space and its cosmological constant is emphasized.

scholarly journals Evolution of thick domain walls in de Sitter universe

2016 ◽  
Vol 2016 (10) ◽  
pp. 026-026 ◽  
Author(s):  
A.D. Dolgov ◽  
S.I. Godunov ◽  
A.S. Rudenko
Keyword(s):  
Domain Walls ◽  
De Sitter ◽  
Sitter Universe ◽  
Thick Domain Walls ◽  
De Sitter Universe

scholarly journals Localization of bulk matter fields, the hierarchy problem and corrections to Coulomb’s law on a pure de Sitter thick braneworld

2013 ◽  
Vol 87 (9) ◽  
Author(s):  
Heng Guo ◽  
Alfredo Herrera-Aguilar ◽  
Yu-Xiao Liu ◽  
Dagoberto Malagón-Morejón ◽  
Refugio Rigel Mora-Luna
Keyword(s):  
De Sitter ◽  
Hierarchy Problem ◽  
Coulomb’S Law ◽  
Coulomb's Law ◽  
Matter Fields

scholarly journals De Sitter and double irregular domain walls

2006 ◽  
Vol 38 (5) ◽  
pp. 845-855 ◽  
Author(s):  
Rommel Guerrero ◽  
R. Omar Rodriguez ◽  
Rafael Torrealba ◽  
R. Ortiz
Keyword(s):  
Domain Walls ◽  
De Sitter ◽  
Irregular Domain

scholarly journals DE SITTER COSMOLOGY FROM GAUSS–BONNET DARK ENERGY WITH QUANTUM EFFECTS

2008 ◽  
Vol 17 (11) ◽  
pp. 2159-2170 ◽  
Author(s):  
EMILIO ELIZALDE ◽  
JOHN QUIROGA HURTADO ◽  
HÉCTOR IVÁN ARCOS
Keyword(s):  
Dark Energy ◽  
Correction Term ◽  
Quantum Effects ◽  
Classical Case ◽  
De Sitter ◽  
Quantum Anomaly ◽  
The Stability ◽  
M Theory ◽  
Friedmann Robertson Walker ◽  
Matter Fields

A Gauss–Bonnet dark energy model is considered. It is inspired by string/M-theory and also takes into account quantum contributions, which are introduced from a conformal quantum anomaly. The corresponding solutions for the Hubble rate, H, are studied starting from the Friedmann–Robertson–Walker equation. It is seen that, as a pure effect of the quantum contributions, a new solution for H exists in some region, which does not appear in the classical case. The behavior of all encountered solutions is studied with care, in particular the role played by the quantum correction term — which depends on the number of matter fields — in the stability of the solutions around its asymptotic value. It is argued that, contrary to what happens in the classical case, quantum effects remarkably lead to the realization of a de Sitter stage which corresponds to the inflation/dark energy stages, even for positive values of the f0 constant (coupling of the field with the Gauss–Bonnet invariant).

MACROSCOPICITY AND CLASSICALITY OF QUANTUM FLUCTUATIONS IN DE SITTER SPACE

1988 ◽  
Vol 03 (10) ◽  
pp. 929-940 ◽  
Author(s):  
SUMIO WADA
Keyword(s):  
Quantum Mechanics ◽  
Quantum Fluctuations ◽  
Quantum States ◽  
Wave Functions ◽  
Interpretation Of Quantum Mechanics ◽  
De Sitter Spacetime ◽  
Probabilistic Interpretation ◽  
De Sitter ◽  
Sitter Spacetime ◽  
Matter Fields

On the basis of the non-probabilistic interpretation of quantum mechanics, we define “macroscopicity” and “classicality” of quantum fluctuations as closely related but separate concepts. Then these properties are examined in quantum states (wave functions) of matter fields in de Sitter spacetime.

SCALAR KINK BRANEWORLDS AND COSMOLOGY

2007 ◽  
Vol 22 (25n28) ◽  
pp. 1959-1969
Author(s):  
RAYMOND R. VOLKAS
Keyword(s):  
Domain Wall ◽  
Standard Model ◽  
Domain Walls ◽  
Dimensional Space ◽  
De Sitter ◽  
Frw Metric ◽  
Fermion Localization

Our universe might be a domain wall or kink carrying localized standard model fields embedded in a 4 + 1-dimensional space. I report on some initial studies of the cosmology of such a model, focusing on the relatively simple de Sitter (dS) and Anti-de Sitter (AdS) cases for the effective 3 + 1-dimensional FRW metric. Fermion localization to the AdS4 and dS4 domain walls is briefly discussed.

Gravitational repulsion of spherical domain walls

1994 ◽  
Vol 100 (2) ◽  
pp. 1023-1029 ◽  
Author(s):  
A. Barnaveli ◽  
M. Gogberashvili
Keyword(s):  
Domain Walls ◽  
Spherical Domain ◽  
Gravitational Repulsion

scholarly journals Localization of matter fields and non-Abelian gauge fields on domain walls

2013 ◽  
Vol 411 ◽  
pp. 012001 ◽  
Author(s):  
Masato Arai ◽  
Filip Blaschke ◽  
Minoru Eto ◽  
Norisuke Sakai
Keyword(s):  
Domain Walls ◽  
Gauge Fields ◽  
Abelian Gauge ◽  
Matter Fields
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