scholarly journals Quantum vacuum fluctuations and dark energy

2009 ◽  
Vol 326 (1) ◽  
pp. 7-10 ◽  
Author(s):  
Emilio Santos
Keyword(s):  
Dark Energy ◽  
Quantum Vacuum ◽  
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 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

scholarly journals A New Inflationary Universe Scenario with Inhomogeneous Quantum Vacuum

2018 ◽  
Vol 2018 ◽  
pp. 1-15
Author(s):  
Yilin Chen ◽  
Jin Wang
Keyword(s):  
Green’S Function ◽  
Potential Barrier ◽  
Green's Function ◽  
Inflationary Universe ◽  
Quantum Vacuum ◽  
Vacuum Fluctuations ◽  
Inflationary Scenario ◽  
Slowing Down ◽  
The Universe ◽  
Inhomogeneous Quantum

We investigate the quantum vacuum and find that the fluctuations can lead to the inhomogeneous quantum vacuum. We find that the vacuum fluctuations can significantly influence the cosmological inhomogeneity, which is different from what was previously expected. By introducing the modified Green’s function, we reach a new inflationary scenario which can explain why the Universe is still expanding without slowing down. We also calculate the tunneling amplitude of the Universe based on the inhomogeneous vacuum. We find that the inhomogeneity can lead to the penetration of the Universe over the potential barrier faster than previously thought.

scholarly journals Quantum vacuum fluctuations

2001 ◽  
Vol 2 (9) ◽  
pp. 1287-1298 ◽  
Author(s):  
Serge Reynaud ◽  
Astrid Lambrecht ◽  
Cyriaque Genet ◽  
Marc-Thierry Jaekel
Keyword(s):  
Quantum Vacuum ◽  
Vacuum Fluctuations
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