scholarly journals Wormholes Created by Vacuum Fluctuations

Proceedings ◽  
2018 ◽  
Vol 2 (1) ◽  
pp. 20
Author(s):  
Arkadiy Alexandrovich Popov
Keyword(s):  
Vacuum Fluctuations

Cosmological constant

2018 ◽  
Author(s):  
Michael Kachelriess
Keyword(s):  
Dark Energy ◽  
Cosmological Constant ◽  
Accelerated Expansion ◽  
Vacuum Fluctuations ◽  
Present Epoch ◽  
Modify Gravity ◽  
Expansion Of The Universe ◽  
The Universe

The contribution of vacuum fluctuations to the cosmological constant is reconsidered studying the dependence on the used regularisation scheme. Then alternative explanations for the observed accelerated expansion of the universe in the present epoch are introduced which either modify gravity or add a new component of matter, dubbed dark energy. The chapter closes with some comments on attempts to quantise gravity.

scholarly journals Fast Vacuum Fluctuations and the Emergence of Quantum Mechanics

2021 ◽  
Vol 51 (3) ◽  
Author(s):  
Gerard ’t Hooft
Keyword(s):  
Quantum Mechanics ◽  
Ground State ◽  
Quantum Interference ◽  
Direct Detection ◽  
Energy Levels ◽  
Vacuum Fluctuations ◽  
Heavy Particles ◽  
Evolving Systems ◽  
Gedanken Experiment ◽  
Classical Computer

AbstractFast moving classical variables can generate quantum mechanical behavior. We demonstrate how this can happen in a model. The key point is that in classically (ontologically) evolving systems one can still define a conserved quantum energy. For the fast variables, the energy levels are far separated, such that one may assume these variables to stay in their ground state. This forces them to be entangled, so that, consequently, the slow variables are entangled as well. The fast variables could be the vacuum fluctuations caused by unknown super heavy particles. The emerging quantum effects in the light particles are expressed by a Hamiltonian that can have almost any form. The entire system is ontological, and yet allows one to generate interference effects in computer models. This seemed to lead to an inexplicable paradox, which is now resolved: exactly what happens in our models if we run a quantum interference experiment in a classical computer is explained. The restriction that very fast variables stay predominantly in their ground state appears to be due to smearing of the physical states in the time direction, preventing their direct detection. Discussions are added of the emergence of quantum mechanics, and the ontology of an EPR/Bell Gedanken experiment.

scholarly journals TEMPERATURE OF ELECTRON FLUCTUATIONS IN AN ACCELERATED VACUUM

2013 ◽  
Vol 28 (03) ◽  
pp. 1340015 ◽  
Author(s):  
LANCE LABUN ◽  
JOHANN RAFELSKI
Keyword(s):  
Electric Field ◽  
Applied Electric Field ◽  
State Density ◽  
Gyromagnetic Ratio ◽  
Constant Field ◽  
Vacuum Fluctuations ◽  
Spectral State

The electron vacuum fluctuations measured by [Formula: see text] do not vanish in an externally applied electric field ℰ. For an exactly constant field, that is for vacuum fluctuations in presence of a constant accelerating force, we show that [Formula: see text] has a Boson-like structure with spectral state density tanh -1(E/m) and temperature T M = eℰ/mπ = av/π. Considering the vacuum fluctuations of 'classical' gyromagnetic ratio g = 1 particles we find Fermi-like structure with the same spectral state density at a smaller temperature T1 = av/2π which corresponds to the Unruh temperature of an accelerated observer.

scholarly journals Focusing vacuum fluctuations. II

2002 ◽  
Vol 66 (6) ◽  
Author(s):  
L. H. Ford ◽  
N. F. Svaiter
Keyword(s):  
Vacuum Fluctuations

Physical properties of particles obeying generalized statistics

1955 ◽  
Vol 51 (1) ◽  
pp. 131-140 ◽  
Author(s):  
I. E. McCarthy
Keyword(s):  
Scattering Amplitudes ◽  
Physical Properties ◽  
Bound States ◽  
Statistical Thermodynamics ◽  
Vacuum Fluctuations ◽  
Thermodynamical Equilibrium ◽  
Spin Fields ◽  
Integral Spin ◽  
Number Of Particles

ABSTRACTThe Feynman probability amplitudes for interactions between spin ½ fields and fields of integral spin quantized according to the generalized method of Green are investigated. It is shown that the scattering amplitudes are independent of the method of quantization though the amplitudes of the vacuum fluctuations are not. The question of distinguishing particles satisfying the generalized statistics, if they exist in nature, from Fermi or Bose particles is considered. It is shown that the statistical thermodynamics of the particles depends on the statistics, but as this requires a large number of particles in thermodynamical equilibrium, it offers no means of distinction for particles with short lifetimes. In practice, an examination of particles in bound states would identify particles obeying generalized statistics.

scholarly journals Classical enhancement of quantum vacuum fluctuations

2017 ◽  
Vol 95 (1) ◽  
Author(s):  
V. A. De Lorenci ◽  
L. H. Ford
Keyword(s):  
Quantum Vacuum ◽  
Vacuum Fluctuations

scholarly journals Quantum Vacuum Fluctuations in a Chromomagnetic-Like Background

2018 ◽  
Vol 48 (6) ◽  
pp. 645-651
Author(s):  
V. B. Bezerra ◽  
M. S. Cunha ◽  
C. R. Muniz ◽  
M. O. Tahim
Keyword(s):  
Quantum Vacuum ◽  
Vacuum Fluctuations

EFFECTS OF A BOUNDARY ON SPONTANEOUS EXCITATION OF AN ACCELERATED MULTILEVEL ATOM COUPLED WITH THE DERIVATIVE OF SCALAR FIELDS

2007 ◽  
Vol 22 (20) ◽  
pp. 3447-3461
Author(s):  
YUNFENG ZHU ◽  
HONGWEI YU
Keyword(s):  
Radiation Reaction ◽  
Scalar Fields ◽  
Normal Direction ◽  
Coupling Scheme ◽  
Quantum Fields ◽  
Vacuum Fluctuations ◽  
Direction Parallel ◽  
Excitation Rate ◽  
Derivative Coupling ◽  
Multilevel Atom

The presence of boundaries modifies the modes of quantum fields, which may in turn modifies the spontaneous excitation rate of accelerated atoms in interaction with these fields. In this paper, we study the effect of the presence of a reflecting boundary on the spontaneous excitation of a uniformly accelerated polarized multilevel atom interacting with quantum scalar fields in a dipole-derivative coupling scheme. We separately calculate the contributions of modified vacuum fluctuations and the radiation reaction to the spontaneous excitation rate of the atom. Our results show that the presence of the boundary modulates the excitation rate and makes it a function of the atom's distance from the boundary. When the atom is placed closer and closer to the boundary, the influence of the boundary becomes more and more drastic, with the contribution of the atom's polarization in the direction parallel to the boundary to the spontaneous excitation rate dramatically suppressed while that in the normal direction greatly enhanced.

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