scholarly journals Quantum evaporation of classical breathers

2019 ◽  
Vol 100 (4) ◽  
Author(s):  
Jan Ollé ◽  
Oriol Pujolàs ◽  
Tanmay Vachaspati ◽  
George Zahariade
Keyword(s):  
Quantum Evaporation

scholarly journals Cosmological model favored by the holographic principle

2016 ◽  
Vol 41 ◽  
pp. 1660127
Author(s):  
Irina Dymnikova ◽  
Anna Dobosz ◽  
Bożena Sołtysek
Keyword(s):  
Cosmological Model ◽  
Cosmological Constant ◽  
Space Time ◽  
Holographic Principle ◽  
Einstein Equations ◽  
Energy Tensor ◽  
De Sitter ◽  
Quantum Evaporation ◽  
Stress Energy ◽  
De Sitter Vacua

We present a regular spherically symmetric cosmological model of the Lemaitre class distinguished by the holographic principle as the thermodynamically stable end-point of quantum evaporation of the cosmological horizon. A source term in the Einstein equations connects smoothly two de Sitter vacua with different values of cosmological constant and corresponds to anisotropic vacuum dark fluid defined by symmetry of its stress-energy tensor which is invariant under the radial boosts. Global structure of space-time is the same as for the de Sitter space-time. Cosmological evolution goes from a big initial value of the cosmological constant towards its presently observed value.

scholarly journals Horst Meyer and Quantum Evaporation

2016 ◽  
Vol 185 (3-4) ◽  
pp. 209-219 ◽  
Author(s):  
S. Balibar
Keyword(s):  
Quantum Evaporation

The role of roton backflow in Quantum Evaporation from helium II

1996 ◽  
Vol 46 (S1) ◽  
pp. 387-388
Author(s):  
J. R. Matthias ◽  
J. C. Inkson ◽  
M. B. Sobnack
Keyword(s):  
Helium Ii ◽  
Quantum Evaporation

scholarly journals The Influence of Quarks and Gluons Jets Coming from Primordial Black Holes on the Reionization of the Universe

1997 ◽  
Vol 12 (23) ◽  
pp. 4167-4198 ◽  
Author(s):  
Marina Gibilisco
Keyword(s):  
Black Holes ◽  
Plasma Heating ◽  
Critical Mass ◽  
Photon Emission ◽  
Plasma Temperature ◽  
Primordial Black Holes ◽  
Quantum Evaporation ◽  
Cooling Effects ◽  
Age Of The Universe ◽  
The Universe

In a previous work, I discussed the effect of the primordial black holes (PBH's) quantum evaporation on the reionization of the Universe at small redshifts (z ≤ 60): in principle, the photons emitted during the evaporation of such objects could drive a new ionization for the Universe after the recombination epoch; this reionization process should happen during the last stages of the PBH's life, when they totally evaporate and emit a lot of massive and massless particles. The critical mass of a black hole whose lifetime is equal to the present age of the Universe is ~ 4.4 × 1014 h-0.3 g: thus, PBH's having a mass M ~ 1014 g are the ideal candidates to induce a reionization at small redshifts. While in my previous study, I considered an exact blackbody photon emission spectrum, here I will adopt a more realistic one, taking into account the quarks and gluons jets emission through the contribution of a known fragmentation function. When the BH temperature rises above the QCD confinement scale, ΛQCD, one should expect an important contribution from quarks and gluons emission in the form of jets. In this paper I also improved my analysis by considering without any approximation the cooling effects in the plasma temperature evolution; as a result, I obtained a satisfactory "late and sudden" reionization process, characterized by a very well controlled rise of the plasma temperature: the plasma heating is not so high to induce a strong distortion of the CBR spectrum, in agreement with the recent FIRAS upper limit on the comptonization parameter, yc < 2.5 × 10-5.

scholarly journals Quantized conductance through the quantum evaporation of bosonic atoms

2016 ◽  
Vol 94 (2) ◽  
Author(s):  
D. J. Papoular ◽  
L. P. Pitaevskii ◽  
S. Stringari
Keyword(s):  
Quantum Evaporation ◽  
Bosonic Atoms

scholarly journals Quantum Evaporation of a Naked Singularity

2006 ◽  
Vol 96 (3) ◽  
Author(s):  
Rituparno Goswami ◽  
Pankaj S. Joshi ◽  
Parampreet Singh
Keyword(s):  
Naked Singularity ◽  
Quantum Evaporation

Time of flight of phonon — atom quantum evaporation signals

1990 ◽  
Vol 165-166 ◽  
pp. 493-494
Author(s):  
M.A.H. Tucker ◽  
A.F.G. Wyatt
Keyword(s):  
Time Of Flight ◽  
Quantum Evaporation

Unitarity, time reversal and quantum evaporation from liquid helium

1996 ◽  
Vol 46 (S1) ◽  
pp. 391-392 ◽  
Author(s):  
F. Dalfovo ◽  
L. Pitaevskii ◽  
S. Stringari
Keyword(s):  
Liquid Helium ◽  
Time Reversal ◽  
Quantum Evaporation
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