Daemon decay and inflation

Prodanov, Emil M.

doi:10.1016/j.physletb.2009.10.029

Cited by 3 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An outgoing particle starting just inside the initial position of the horizon at r = 2M − δ (where δ is a small positive number) experiences a classically forbidden region and materializes just outside of the final position of the horizon at r = 2(M − ω) + δ. Tunneling of massless and massive particles through a smeared quantum horizon has also been examined in the case of black holes in non-commutative geometry by considering the effect of smearing of the particle's mass as a Gaussian profile in a flat space-time [3] or by extending the Parikh-Wilczek scheme to higher dimensional non-commutative geometry [4]. Quantum tunneling in a naked singularity setting in Reissner-Nordström geometry in the context of daemon decay has also been studied [5]. In Schwarzschild geometry and in Reissner-Nordström geometry (and, more generally, in Kerr-Newman geometry), the effective one-dimensional radial motion of massive (charged or not) particles (with non-zero angular momentum) has turning points which bound classically forbidden regions (in which the kinetic energy is negative).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaporation screening, scattering, and quantum tunnelling near the horizons of Schwarzschild and Reissner–Nordström black holes

Prodanov¹

2014

Class. Quantum Grav.

View full text Add to dashboard Cite

For the radial motion of massive particles with large angular momenta in Schwarzschild geometry and that of massive charged particles with large angular momenta or energy in a particular range in Reissner-Nordström geometry, there exist classically forbidden regions on the outside of the respective event horizons which scatter certain infalling geodesics or screen some of the black holes' evaporation by reflecting the emitted particles back into the black holes. Quantum tunneling across this forbidden regions is studied.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Quantum tunnelling in a naked singularity setting in Reissner-Nordström geometry in the context of daemon decay has also been studied [5].…”

Section: Introductionmentioning

confidence: 99%

Evaporation screening, scattering, and quantum tunnelling near the horizons of Schwarzschild and Reissner–Nordström black holes

Prodanov¹

2014

Class. Quantum Grav.

View full text Add to dashboard Cite

show abstract

Daemon Decay and Cosmic Inflation

Prodanov¹

2011

Physics Beyond the Standard Models of Particles, Cosmology and Astrophysics

Self Cite

View full text Add to dashboard Cite

show abstract

Now the Dark Electron Multiplier Does Sense Direction of the Daemon Motion

Drobyshevski

Pikulin

2010

Mod. Phys. Lett. A

View full text Add to dashboard Cite

Detection of the September maximum in the primary near-Earth daemon flux at high (~60 o ) Northern latitudes by our set-up with a plane horizontal scintillator is plagued by purely geometric factors; indeed, because of the Earth's rotation axis being tilted, the daemons catching up with the Earth in outer Near-Earth, Almost Circular Heliocentric Orbits (NEACHOs) strike the Earth along close-tohorizontal paths. Nevertheless, application of only two oppositely oriented, specially designed "dark electron multipliers" of the type TEU-167d (only their ø125-mm front disc is coated on the inside by a thick, ~0.5 µm Al layer, which permits such multipliers to detect primarily daemons flying inside them from the base to the disc) has made it possible for us to detect in one experiment, at a confidence level of >3σ, a flux of daemons captured from NEACHOs into Geocentric Earth-Surface-Crossing Orbits, as well as to record a decrease in the velocity of these objects from ~10 to ~7 km/s in a characteristic time of ~1 month resulting from their being slowed down in transits through the Earth's body. Keywords: DM detection; Planck black holes; DM objects' interaction with matter PACS Nos.: 95.35.+d Introduction. On the Interaction of the Daemon with MatterAny object can be detected only through its interaction with matter. The fairly strong interaction with matter of daemons, these negative, multiply electrically charged objects of tentatively Planck nature [1-5], makes the task facing a researcher a far from trivial, manyfaceted problem. We are going to consider (and use) here only some of its aspects.Electromagnetic capture by a negative daemon, say, of a Zn nucleus in the ZnS(Ag) scintillator gives rise to excitation of the nucleus, with the ensuing ejection of a host of particles (electrons, nucleons, γ's) and generation of scintillations similar in shape to the ones caused by α-particles (Heavy Particle Scintillations -HPSs) [6]. Such capture of a nucleus in a fairly thick internal metallic (e.g., Al) coating of a PM tube also initiates emission of electrons. These electrons, similar to the photoelectrons, undergo in a PM tube trivial multiplication, which gives rise to formation of an electric signal at the instrument output [7].In our previous publication [8], we have reported on a successful detection of daemons with a TEU-167 (Dark Electron Multiplier, DEM), a modified FEU-167 photoelectron multiplier, in which not only the rear (conical) and side (cylindrical) surfaces of the cathode section of the bulb, but the front disc (ø125 mm) as well, were coated on the inside with a fairly thick (~0.5 µm) aluminum film.The results obtained in the experiment were very promising for the first attempt. These DEM experiments not only have corroborated the existence of a diurnal variation in the daemon flux from NEACHOs [8,9], which followed from celestial mechanics considerations, but offered also a lower estimate of its maximum morning level f ≥ 3.4×10 -7 cm -2 s -1 . The measurements were conducted in March 2009. The response o...

show abstract

Daemon decay and inflation

Abstract: Quantum tunneling in Reissner-Nordström geometry is studied and the tunneling rate is determined. A possible scenario for cosmic inflation, followed by reheating phases and subsequent radiation-domination expansion, is proposed.

Cited by 3 publications

References 17 publications

Evaporation screening, scattering, and quantum tunnelling near the horizons of Schwarzschild and Reissner–Nordström black holes

Evaporation screening, scattering, and quantum tunnelling near the horizons of Schwarzschild and Reissner–Nordström black holes

Daemon Decay and Cosmic Inflation

Now the Dark Electron Multiplier Does Sense Direction of the Daemon Motion

Contact Info

Product

Resources

About