scholarly journals Particle propagation and effective space-time in gravity’s rainbow

2012 ◽  
Vol 85 (2) ◽  
Author(s):  
Remo Garattini ◽  
Gianluca Mandanici
Keyword(s):  
Space Time ◽  
Gravity’S Rainbow ◽  
Gravity's Rainbow ◽  
Particle Propagation

Complex geometry of space–time motivated by gravity’s rainbow

2019 ◽  
Vol 97 (5) ◽  
pp. 558-561
Author(s):  
Faizan Bhat ◽  
Mussadiq H. Qureshi ◽  
Manzoor A. Malik ◽  
Asif Iqbal
Keyword(s):  
Imaginary Part ◽  
Complex Space ◽  
Complex Geometry ◽  
Planck Scale ◽  
Space Time ◽  
Low Energy ◽  
Gravity’S Rainbow ◽  
Gravity's Rainbow ◽  
Energy Approximation ◽  
Planck Energy

In this paper, we generalize the formalism of gravity’s rainbow to complex space–time. The resulting geometry depends on the energy of the probe in such a way that the usual real manifold is the low energy approximation of the Planck scale geometry of space–time. So, our formalism agrees with all the observational data about our space–time being real, as at the scale these experiments are preformed, the imaginary part of the geometry is suppressed by Planck energy. However, the imaginary part of the geometry becomes important near the Planck energy, and so it cannot be neglected near the Planck scale. So, the Planck scale geometry of space–time is described by a complex manifold.

scholarly journals Quantum dynamics of scalar particles in the space–time of a cosmic string in the context of gravity’s rainbow

2020 ◽  
Vol 421 ◽  
pp. 168276
Author(s):  
L.C.N. Santos ◽  
C.E. Mota ◽  
C.C. Barros ◽  
L.B. Castro ◽  
V.B. Bezerra
Keyword(s):  
Cosmic String ◽  
Quantum Dynamics ◽  
Space Time ◽  
Scalar Particles ◽  
Gravity’S Rainbow ◽  
Gravity's Rainbow

HAWKING RADIATION VIA TUNNELING OF MASSIVE PARTICLES FROM A GRAVITY'S RAINBOW

2010 ◽  
Vol 25 (38) ◽  
pp. 3229-3240 ◽  
Author(s):  
CHENG-ZHOU LIU
Keyword(s):  
Black Holes ◽  
Hawking Radiation ◽  
Quantum Effect ◽  
Massive Particle ◽  
Planck Scale ◽  
Gravity’S Rainbow ◽  
Gravity's Rainbow ◽  
Corrected Entropy ◽  
Massive Particles ◽  
Massive Particle Tunneling

In the tunneling framework of Hawking radiation, the quantum tunneling of massive particles in the modified Schwarzschild black holes from gravity's rainbow is investigated. While the massive particle tunneling from the event horizon, the metric fluctuation is taken into account, not only due to energy conservation but also to the Planck scale effect of spacetime. The obtained results show that, the emission rate is related to changes of the black hole's quantum corrected entropies before and after the emission. This implies that, considering the quantum effect of spacetime, information conservation of black holes is probable. Meanwhile, the quantum corrected entropy of the modified black hole is obtained and the leading correction behave as log-area type. And that, the emission spectrum with Planck scale correction is obtained and it deviates from the thermal spectrum.

De Nostalgia

2015 ◽  
Vol 11 (3) ◽  
pp. 395-406
Author(s):  
Friedrich Kittler
Keyword(s):  
Technology Transfer ◽  
Second World War ◽  
Discursive Construction ◽  
World War ◽  
Gravity’S Rainbow ◽  
Gravity's Rainbow ◽  
Complete Destruction ◽  
Second World ◽  
Home Territory

The essay presents a reading of three war-related texts: Friedrich Schiller’s Wilhelm Tell, Heinrich von Kleist’s The Battle of Hermann, and Thomas Pynchon’s Gravity’s Rainbow. Written against the background of the Revolutionary Wars and the Prussian Wars of Liberation, respectively, the plays by Schiller and Kleist engage in the discursive construction of an emphatic sense of heimat (home), either by way of creating the new sentiment of homesickness (originally called nostalgia) or by advocating the complete destruction of the very home territory you are trying to defend. Gravity’s Rainbow, in turn, decodes the Second World War as a massive exercise in technology transfer. It effectively presents a deconstruction of heimat in an age in which the imperative to merge technologies supersedes all national agendas.

scholarly journals AdS4 dyonic black holes in gravity's rainbow

2019 ◽  
Vol 938 ◽  
pp. 388-415 ◽  
Author(s):  
S. Panahiyan ◽  
S.H. Hendi ◽  
N. Riazi
Keyword(s):  
Black Holes ◽  
Gravity’S Rainbow ◽  
Gravity's Rainbow
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