Neutrino mixing as a source for cosmological constant

Blasone, Massimo; Capolupo, Antonio; Capozziello, Salvatore; Carloni, Sante; Vitiello, Giuseppe

doi:10.1590/s0103-97332005000300015

Cited by 4 publications

(2 citation statements)

References 20 publications

(16 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Of course, this conclusion about the future dynamics of the universe is based on the assumption that there is no light field in beyond SM sector (say like light axion) with mass lighter than 10 −3 eV to contribute to the future dark energy. We comment that the relations between the zero point energy of neutrino and the observed dark energy (cosmological constant) have been studied in different contexts in the past in [29][30][31][32][33] An immediate corollary of our selection rule is that at early stage in cosmic history (i.e. for all time prior to the time of matter-radiation equality) only fields with the masses at the order of the FLRW photon temperature could contribute to dark energy at that epoch.…”

Section: Finally Heavy Fields With H (M)mentioning

confidence: 99%

Cosmological constant problem on the horizon

Firouzjahi¹

2022

Preprint

View full text Add to dashboard Cite

We revisit the quantum cosmological constant problem and highlight the important roles played by the dS horizon of zero point energy. We argue that fields which are light enough to have dS horizon of zero point energy comparable to the FLRW Hubble radius are the main contributor to dark energy. On the other hand, the zero point energy of heavy fields develop nonlinearities on sub-Hubble scales and can not contribute to dark energy. Our proposal provides a simple resolution for both the old and new cosmological constant problems by noting that there exits a field, the (lightest) neutrino, which happens to have a mass comparable to the present background photon temperature. The natures of dark energy and dark matter are unified in this proposal in which the zero point energy of light fields are the source of dark energy while dark matter is sourced by the zero point energy of heavy fields. The proposal predicts multiple transient periods of dark energy in early and late expansion history of the universe yielding to a higher value of the current Hubble expansion rate which can resolve the H 0 tension problem.

show abstract

Section: Finally Heavy Fields With H (M)mentioning

confidence: 99%

Cosmological constant problem on the horizon

Firouzjahi¹

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…We also stress that the local nature of the Casimir force prevents our calculations from being affected by the choice of a particular regularization scheme. Such a characteristic is not present in other contexts where effects of the flavor vacuum were studied [15].…”

Section: Introductionmentioning

confidence: 92%

Casimir effect for mixed fields

et al. 2018

Self Cite

View full text Add to dashboard Cite

We analyze the Casimir effect for a flavor doublet of mixed scalar fields confined inside a one-dimensional finite region. In the framework of the unitary inequivalence between mass and flavor representations in quantum field theory, we employ two alternative approaches to derive the Casimir force: in the first case, the zero-point energy is evaluated for the vacuum of fields with definite mass, then similar calculations are performed for the vacuum of fields with definite flavor. We find that signatures of mixing only appear in the latter context, showing the result to be independent of the mixing parameters in the former.

show abstract

Cosmological constant problem on the horizon

Firouzjahi

2022

Phys. Rev. D

View full text Add to dashboard Cite

Neutrino mixing as a source for cosmological constant

Cited by 4 publications

References 20 publications

Cosmological constant problem on the horizon

Cosmological constant problem on the horizon

Casimir effect for mixed fields

Cosmological constant problem on the horizon

Contact Info

Product

Resources

About