The quantum vacuum and the cosmological constant problem

Rugh, Svend Erik; Zinkernagel, Henrik

doi:10.1016/s1355-2198(02)00033-3

Cited by 172 publications

(189 citation statements)

References 63 publications

(207 reference statements)

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“…For now we shall ignore gravity loops, meaning that gravity is a purely (semi) classical field which merely serves the purpose of detecting vacuum energy. This suffices to provide a sharp formulation of the cosmological constant problem [4][5][6][7][8] in gravity as first noted by Pauli. 1 To see how the loop contributions to the vacuum energy cancel out, we can look at the field equations that follow from (1.1).…”

Section: Jhep09(2017)074mentioning

confidence: 99%

An étude on global vacuum energy sequester

D’Amico

Kaloper

Padilla

et al. 2017

J. High Energ. Phys.

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Recently two of the authors proposed a mechanism of vacuum energy sequester as a means of protecting the observable cosmological constant from quantum radiative corrections. The original proposal was based on using global Lagrange multipliers, but later a local formulation was provided. Subsequently other interesting claims of a different nonlocal approach to the cosmological constant problem were made, based again on global Lagrange multipliers. We examine some of these proposals and find their mutual relationship. We explain that the proposals which do not treat the cosmological constant counterterm as a dynamical variable require fine tunings to have acceptable solutions. Furthermore, the counterterm often needs to be retuned at every order in the loop expansion to cancel the radiative corrections to the cosmological constant, just like in standard GR. These observations are an important reminder of just how the proposal of vacuum energy sequester avoids such problems.

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Section: Jhep09(2017)074mentioning

confidence: 99%

An étude on global vacuum energy sequester

D’Amico

Kaloper

Padilla

et al. 2017

J. High Energ. Phys.

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“…It can be identified with gravitation (see later for more details), which indeed has a cosmological significance. The zero point energy has actually been related to the cosmological constant [15]. Information on matter (gravitation) appears to be the key for understanding the interrelation between (here deterministic) quantum uncertainty behavior and cosmological parameters.…”

Section: Are Uncertainty and Zero Point Energy Fundamental?mentioning

confidence: 99%

A Fundamentally Irreversible World as an Opportunity towards a Consistent Understanding of Quantum and Cosmological Contexts

Tributsch¹

2016

JMP

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In a preceding publication a fundamentally oriented and irreversible world was shown to be derivable from the important principle of least action. A consequence of such a paradigm change is avoidance of paradoxes within a "dynamic" quantum physics. This becomes essentially possible because fundamental irreversibility allows consideration of the "entropy" concept in elementary processes. For this reason, and for a compensation of entropy in the spread out energy of the wave, the duality of particle and wave has to be mediated via an information self-image of matter. In this publication considerations are extended to irreversible thermodynamics, to gravitation and cosmology with its dependence on quantum interpretations. The information self-image of matter around particles could be identified with gravitation. Because information can also impose an always constant light velocity there is no need any more to attribute such a property to empty space, as done in relativity theory. In addition, the possibility is recognized to consider entropy generation by expanding photon fields in the universe. Via a continuous activation of information on matter photons can generate entropy and release small energy packages without interacting with matter. This facilitates a new interpretation of galactic redshift, emphasizes an information link between quantum-and cosmological phenomena, and evidences an information-triggered origin of the universe. Self-organized processes approach maximum entropy production within their constraints. In a far from equilibrium world also information, with its energy content, can selforganize to a higher hierarchy of computation. It is here identified with consciousness. This appears to explain evolution of spirit and intelligence on a materialistic basis. Also gravitation, here identified as information on matter, could, under special conditions, self-organize to act as a super-gravitation, offering an alternative to dark matter. Time is not an illusion, but has to be un-H. Tributsch 1456 derstood as flux of action, which is the ultimate reality of change. The concept of an irreversible physical world opens a route towards a rational understanding of complex contexts in nature.

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“…This follows from experiments in which particles are diffracted by the walls of a narrow slit whose width is smaller than their de Broglie wavelength. Since neutrinos have a much smaller mass than W bosons, their de Broglie wavelengths will be at least 12 …”

Section: Planetary Heating Via Ippmentioning

confidence: 99%

“…The value of the cosmological constant  is at least 120 orders of magnitude smaller than theory can explain, a fact historically referred to as the cosmological constant problem [12]. Thus, dynamical dark energy caused by an exotic negative pressure fluid is the most theoretically plausible explanation for the accelerating expansion of the universe [13].…”

Section: Introductionmentioning

confidence: 99%

Planetary Heating by Neutrinos: Long-Term Habitats for Aquatic Life if Dark Energy Decays Favourably

Spivey¹

2013

JMP

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The potential cosmological and astrobiological implications of neutrinos are considered. Dark energy drives the current phase of accelerating cosmic expansion. Like inflation, it may decay in time to matter and radiation. However, since its energy density is minuscule in comparison, decay would be unlikely to inject such a rich variety of particles into the universe, and may instead be limited to the lowest energy fermions. Nonrelativistic neutrinos have the capacity to form stable, galaxy-engulfing haloes supported by degeneracy pressure, much like white dwarves and neutron stars. Conversely, bodies of mass 100M   can indefinitely rely on Coulomb forces for weight support. Opportunities for the mutual annihilation of electron neutrinos are largely confined to planets containing iron in the hcp phase. If dark energy decays primarily to neutrinos in 40 ~ 100 Gyr, then oceanic planets orbiting within the resulting haloes could provide long-term habitats for aquatic life with only lax constraints on the neutrino mass, 6 1 4 0m m  e V   . Various considerations now favour the possibility that neutrinos are Majorana particles with an inverted mass hierarchy and an electron neutrino mass in the vicinity of 50 meV. Sterile neutrinos of eV-mass may already be a significant component of dark matter, and could enhance planetary heating when active neutrino haloes become heavily depleted. An intriguing mechanism capable of regulating oceanic heat flux over a wide range of planetary masses is also described.

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The quantum vacuum and the cosmological constant problem

Cited by 172 publications

References 63 publications

An étude on global vacuum energy sequester

An étude on global vacuum energy sequester

A Fundamentally Irreversible World as an Opportunity towards a Consistent Understanding of Quantum and Cosmological Contexts

Planetary Heating by Neutrinos: Long-Term Habitats for Aquatic Life if Dark Energy Decays Favourably

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