23 research outputs found
Superradiance and quantum states on black hole space-times
We consider the definition of the Boulware and Hartle-Hawking states for quantum fields on black hole space-times. The properties of these states on a Schwarzschild black hole have been understood for many years, but neither of these states has a direct analogue on a Kerr black hole. We show how superradiant modes play an important role in the definition of quantum states on Kerr. Superradiance is also present on static black hole space-times, in particular for a charged scalar field on a Reissner-Nordström black hole. We explore whether analogues of the Boulware and Hartle-Hawking states exist in this situation
Short-read whole genome sequencing identifies causative variants in most individuals with previously unexplained aniridia
Amino acid transport systems of lysosomes: Possible substitute utility of a surviving transport system for one congenitally defective or absent
Ways in which other transport systems may compensate for one that is genetically defective are considered. Comparisons of the transport systems of organelles (here the lysosome) with the transport system at the plasma membrane has significant implications for chemotherapy.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/44194/1/10540_2005_Article_BF01116456.pd
Inequivalent quantization of the rational Calogero model with a Coulomb type interaction
We consider the inequivalent quantizations of a -body rational Calogero
model with a Coulomb type interaction. It is shown that for certain range of
the coupling constants, this system admits a one-parameter family of
self-adjoint extensions. We analyze both the bound and scattering state sectors
and find novel solutions of this model. We also find the ladder operators for
this system, with which the previously known solutions can be constructed.Comment: 15 pages, 3 figures, revtex4, typos corrected, to appear in EPJ
Student apathy for classroom learning and need of repositioning in present andragogy in Indian dental schools
25th Annual Computational Neuroscience Meeting: CNS-2016
Abstracts of the 25th Annual Computational Neuroscience
Meeting: CNS-2016
Seogwipo City, Jeju-do, South Korea. 2–7 July 201
Radiation emitted by a source orbiting a Schwarzschild--anti--de Sitter black hole
We study the scalar radiation emitted by a source orbiting a
Schwarzschild--anti--de Sitter black hole in circular geodesics. We obtain the
emitted power using quantum field theory in curved spacetimes at tree level
with reflective boundary conditions at infinity. We compare our results with
the ones obtained in Schwarzschild and Schwarzschild--de Sitter ()
spacetimes. In the Schwarzschild-de Sitter spacetime we observe an enhancement
of the emitted power associated to the lower multipole modes, when compared
with the Schwarzschild case. In contrast, for the Schwarzschild-anti-de Sitter
spacetime, the enhancement is rather of the higher multipole modes.Comment: 10 pages, 6 figure