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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Particle production between isometric frames on a Poincare patch of AdS(2)

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Author(s):
Pitelli, Joao Paulo M. [1, 2] ; Barroso, Vitor S. [3]
Total Authors: 2
Affiliation:
[1] Univ Estadual Campinas, Dept Matemat Aplicada, BR-13083859 Sao Paulo - Brazil
[2] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 - USA
[3] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Journal of Mathematical Physics; v. 60, n. 9 SEP 2019.
Web of Science Citations: 0
Abstract

In a recent paper {[}J. P. M. Pitelli, Phys. Rev. D 99, 108701 (2019)], one of us showed that the vacuum state associated with conformal fields on a Poincare patch of anti-de Sitter spacetime is not AdS invariant for fields satisfying nontrivial boundary conditions (by nontrivial, we mean neither Dirichlet nor Neumann) at the conformal boundary. In this way, two isometrically related observers in anti-de Sitter space have different notions of no particle content. Therefore, an observer who is suddenly transported to a different (but isometrically related) frame will feel a bath of particles. This process contradicts our intuitive notion based on our experience in Minkowski spacetime, where the vacuum is Lorentz invariant, and no particle is produced between boosted frames. We show that the total number of produced particles is finite but grows without limit when we approach (via isometric transformation) Dirichlet or Neumann boundary conditions since in these cases the vacuum is invariant. Published under license by AIP Publishing. (AU)

FAPESP's process: 18/01558-9 - Quantum Field Theory on Non-Globally-Hyperbolic Spacetimes: The Physical Effects of the Boundary Conditions
Grantee:João Paulo Pitelli Manoel
Support Opportunities: Scholarships abroad - Research
FAPESP's process: 16/25963-4 - Quantum Fluctuations and the Global Monopole
Grantee:Vitor Barroso Silveira
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 13/09357-9 - Physics and geometry of spacetime
Grantee:Alberto Vazquez Saa
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 18/09575-0 - Vacuum Fluctuations in non-globally hyperbolic spacetimes
Grantee:Vitor Barroso Silveira
Support Opportunities: Scholarships abroad - Research Internship - Master's degree