Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Zonetti, Simone"'
Autor:
Zonetti, Simone
Publikováno v:
Phys. Rev. D 90, 064046 (2014)
In this work we investigate the thermodynamical properties and modified dynamics of black hole solutions in the semiclassical regime of affine coherent state quantization. Using the weak correspondence principle we build a semiclassical effective act
Externí odkaz:
http://arxiv.org/abs/1409.1761
Autor:
Govaerts, Jan, Zonetti, Simone
Publikováno v:
Phys. Rev. D 87, 084016 (2013)
In the investigation and resolution of the cosmological constant problem the inclusion of the dynamics of quantum gravity can be a crucial step. In this work we suggest that the quantum constraints in a canonical theory of gravity can provide a way o
Externí odkaz:
http://arxiv.org/abs/1212.4538
Publikováno v:
Phys.Rev. D86 (2012) 124043
We consider black holes in an "unsuitable box": a finite cavity coupled to a thermal reservoir at a temperature different than the black hole's Hawking temperature. These black holes are described by metrics that are continuous but not differentiable
Externí odkaz:
http://arxiv.org/abs/1210.6904
Autor:
Zonetti, Simone
The cosmological constant problem is one of the long-standing issues of modern physics. While we can measure the value of the cosmological constant with great accuracy, we are not able to calculate it in a coherent theoretical framework. On the contr
Externí odkaz:
http://arxiv.org/abs/1209.4472
Autor:
Fanuel, Michaël, Zonetti, Simone
Publikováno v:
EPL 101 (2013) 10001
The Affine Coherent State Quantization procedure is applied to the case of a FRLW universe in the presence of a cosmological constant. The quantum corrections alter the dynamics of the system in the semiclassical regime, providing a potential barrier
Externí odkaz:
http://arxiv.org/abs/1203.4936
Autor:
Zonetti, Simone, Govaerts, Jan
Publikováno v:
J. Phys. A: Math. Theor. 45 (2012) 042001
We present an interesting reformulation of a collection of dilaton gravity models in two space-time dimensions into a field theory of two decoupled Liouville fields in flat space, in the presence of a Maxwell gauge field. An effective action is also
Externí odkaz:
http://arxiv.org/abs/1111.1612
Autor:
Govaerts, Jan, Zonetti, Simone
Publikováno v:
Class. Quantum Grav. 28 185001 (2011)
A two dimensional matter coupled model of quantum gravity is studied in the Dirac approach to constrained dynamics in the presence of a cosmological constant. It is shown that after partial fixing to the conformal gauge the requirement of a quantum r
Externí odkaz:
http://arxiv.org/abs/1102.4957
Publikováno v:
JCAP 1009:015,2010
We show the generic existence of metastable massive gravitons in the four-dimensional core of self-gravitating hypermonopoles in any number of infinite-volume extra-dimensions. Confinement is observed for Higgs and gauge bosons couplings of the order
Externí odkaz:
http://arxiv.org/abs/1002.5021