Zobrazeno 1 - 10
of 24
pro vyhledávání: '"R. Di Criscienzo"'
Autor:
R. Di Criscienzo, Alessio Orlandi, Giovanni Acquaviva, Roberto Casadio, Luciano Vanzo, Stefano Chiodini
Publikováno v:
Modern Physics Letters A. 26:2149-2158
We give an interpretation of the temperature in de Sitter universe in terms of a dynamical Unruh effect associated with the Hubble sphere. As with the quantum noise perceived by a uniformly accelerated observer in static space-times, observers endowe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5538d3470346477f8e6840a441c7637
https://doi.org/10.1142/s0217732311036516
https://doi.org/10.1142/s0217732311036516
Publikováno v:
International Journal of Theoretical Physics. 51:1555-1571
In the present paper, Unruh--DeWitt detectors are used in order to investigate the issue of temperature associated with a spherically symmetric dynamical space-times. Firstly, we review the semi-classical tunneling method, then we introduce the Unruh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f413c6cd01defca0508065a2c62b57d
https://doi.org/10.1007/s10773-011-1033-2
https://doi.org/10.1007/s10773-011-1033-2
Autor:
Enrico Serra, R. Di Criscienzo, Antonio Borrielli, Massimo Gottardi, Michele Bonaldi, Jacopo Iannacci
Publikováno v:
SPIE Proceedings.
The aim of this contribution is to report and discuss a preliminary study and rough optimization of a novel concept of MEMS device for vibration energy harvesting, based on a multi-modal dynamic behavior. The circular-shaped device features Four-Leaf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e1b58c8aaee368310db43ec5274ede7
https://doi.org/10.1117/12.2016766
https://doi.org/10.1117/12.2016766
The aim of this work is to review the tunnelling method as an alternative description of the quantum radiation from black holes and cosmological horizons. The method is first formulated and discussed for the case of stationary black holes, then a fou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d32f937eb18c2d46fd71bf9d5299a77
Publikováno v:
Scopus-Elsevier
Previous work on dynamical black hole instability is further elucidated within the Hamilton-Jacobi method for horizon tunnelling and the reconstruction of the classical action by means of the null-expansion method and making use of a coordinate invar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d010b7d882f5f6565214b51d843e79c
Autor:
Sean A. Hayward, R. Di Criscienzo, M. Nadalini, L. Vanzo, S. Zerbini, Kerstin E. Kunze, Marc Mars, Miguel Angel Vázquez-Mozo
A local Hawking temperature was recently derived for any future outer trapping horizon in spherical symmetry, using a Hamilton-Jacobi tunneling method, and is given by a dynamical surface gravity as defined geometrically. Descriptions are given of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::481ed5dfcbd26bbb3f80c6acc3131497
The instability against emission of massless particles by the trapping horizon of an evolving black hole is analyzed with the use of the Hamilton-Jacobi method. The method automatically selects one special expression for the surface gravity of a chan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b867ce9cc2c3ef56c8259583e026fa4
Publikováno v:
Classical and Quantum Gravity. 30:235013
Much attention has been recently devoted to modified theories of gravity in the attempt to efficiently describe both early inflation and late-time acceleration of our universe without referring to the cosmological constant or other ad hoc kinds of fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03d4d93ad6c51a4b79184a177f300f90
https://doi.org/10.1088/0264-9381/30/23/235013
https://doi.org/10.1088/0264-9381/30/23/235013
Publikováno v:
Classical and Quantum Gravity. 26:062001
A local Hawking temperature is derived for any future outer trapping horizon in spherical symmetry, using a Hamilton-Jacobi variant of the Parikh-Wilczek tunneling method. It is given by a dynamical surface gravity as defined geometrically. The opera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5ba2e9f33fd8690270a40739818f0aa
https://doi.org/10.1088/0264-9381/26/6/062001
https://doi.org/10.1088/0264-9381/26/6/062001
Publikováno v:
Scopus-Elsevier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f42e14f622a797be8a4daf180786654d
http://www.scopus.com/inward/record.url?eid=2-s2.0-84885614653&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-84885614653&partnerID=MN8TOARS