scholarly journals Lorentz violation with an invariant minimum speed as foundation of the Gravitational Bose Einstein Condensate of a Dark Energy Star

2020 ◽  
Vol 27 ◽  
pp. 100454
Author(s):  
Cláudio Nassif Cruz ◽  
Rodrigo Francisco dos Santos ◽  
A.C. Amaro de Faria
Keyword(s):  
Dark Energy ◽  
Lorentz Violation ◽  
Einstein Condensate ◽  
Energy Star ◽  
Bose Einstein Condensate ◽  
Minimum Speed ◽  
Bose Einstein

scholarly journals Supplying dark energy from scalar field dark matter

2018 ◽  
Vol 27 (09) ◽  
pp. 1850100
Author(s):  
Merab Gogberashvili ◽  
Alexander Sakharov
Keyword(s):  
Dark Matter ◽  
Dark Energy ◽  
Gordon Equation ◽  
Einstein Condensate ◽  
Scalar Particles ◽  
Bose Einstein Condensate ◽  
Constant Solution ◽  
Klein Gordon ◽  
Free Parameters ◽  
Bose Einstein

We consider the hypothesis that dark matter (DM) and dark energy (DE) consist of ultra-light self-interacting scalar particles. It is found that the Klein–Gordon equation with only two free parameters (mass and self-coupling) on a Schwarzschild background, at the galactic length-scales has the solution which corresponds to Bose–Einstein Condensate (BEC), behaving as DM, while the constant solution at supra-galactic scales can explain DE.

scholarly journals Cold Dark Matter: A Gluonic Bose–Einstein Condensate in Anti-de Sitter Space Time

Universe ◽  
2021 ◽  
Vol 7 (11) ◽  
pp. 402
Author(s):  
Gilles Cohen-Tannoudji ◽  
Jean-Pierre Gazeau
Keyword(s):  
Dark Matter ◽  
Dark Energy ◽  
Standard Model ◽  
Cold Dark Matter ◽  
Hidden Variables ◽  
Einstein Condensate ◽  
De Sitter ◽  
Bose Einstein Condensate ◽  
Bose Einstein ◽  
The Universe

In the same way as the realization of some of the famous gedanken experiments imagined by the founding fathers of quantum mechanics has recently led to the current renewal of the interpretation of quantum physics, it seems that the most recent progress of observational astrophysics can be interpreted as the realization of some cosmological gedanken experiments such as the removal from the universe of the whole visible matter or the cosmic time travel leading to a new cosmological standard model. This standard model involves two dark components of the universe, dark energy and dark matter. Whereas dark energy is usually associated with the cosmological constant, we propose explaining dark matter as a pure QCD effect, namely a gluonic Bose–Einstein condensate, following the transition from the quark gluon plasma phase to the colorless hadronic phase. Our approach not only allows us to assume a Dark/Visible ratio equal to 11/2 but also provides gluons (and di-gluons, viewed as quasi-particles) with an extra mass of vibrational nature. Such an interpretation would support the idea that, apart from the violation of the matter/antimatter symmetry satisfying the Sakharov’s conditions, the reconciliation of particle physics and cosmology needs not the recourse to any ad hoc fields, particles or hidden variables.

scholarly journals There is no coincidence after all!

2020 ◽  
Vol 29 (14) ◽  
pp. 2043013
Author(s):  
Saurya Das
Keyword(s):  
Dark Matter ◽  
Dark Energy ◽  
Early Universe ◽  
Negative Pressure ◽  
Einstein Condensate ◽  
Coincidence Problem ◽  
Bose Einstein Condensate ◽  
Bose Einstein ◽  
Equal Density

We show that if Dark Matter is made up of light bosons, they form a Bose–Einstein condensate in the early Universe. This in turn naturally induces a Dark Energy of approximately equal density and exerting negative pressure. This explains the so-called coincidence problem.

STABILITY OF BOSE–EINSTEIN CONDENSATES IN A LORENTZ VIOLATING SCENARIO

2010 ◽  
Vol 25 (06) ◽  
pp. 459-469 ◽  
Author(s):  
E. CASTELLANOS ◽  
A. CAMACHO
Keyword(s):  
Nonlinear Term ◽  
Scattering Length ◽  
Lorentz Violation ◽  
Einstein Condensate ◽  
Pitaevskii Equation ◽  
Quantum Structure ◽  
Bose Einstein Condensate ◽  
The Stability ◽  
The One ◽  
Bose Einstein

We analyze the stability of a Bose–Einstein condensate in a Lorentz violating scenario, which is characterized by a deformation in the dispersion relation. The incorporation of a Lorentz violation within the bosonic statistics has, as a consequence, the emergence of a pseudo-interaction, the one can be associated to a characteristic scattering length. In addition, we calculate the relevant parameters associated to the stability of such condensate incorporating this pseudo-interaction in the nonlinear term of the Gross–Pitaevskii equation. We show that these parameters must be corrected, as a consequence of the quantum structure of spacetime.

scholarly journals The cold genesis–a new scenario of particles forming

2017 ◽  
Vol 1 (5) ◽  
pp. 146-149
Author(s):  
Marius Arghirescu
Keyword(s):  
Magnetic Field ◽  
Dark Energy ◽  
Strong Magnetic Field ◽  
Magnetic Moment ◽  
Nuclear Force ◽  
Einstein Condensate ◽  
Elementary Particles ◽  
Fifth Force ◽  
Bose Einstein Condensate ◽  
Bose Einstein

There are presented briefly the main theoretic models of the theory developed by author in the book: “The cold Genesis of Matter and Fields” (Ed. Science PG, 2015), which argues the cold genesis of elementary particles in a very strong magnetic field, comparable to those of a magnetar or a gravistar. The elementary particles are explained by a quasi-crystalline model of quark , resulted as Bose-Einstein condensate of gammons considered as N pairs of quasi-electrons with diminished me -mass, e∗ -charge and μe∗(Γ∗μ) -magnetic moment. The nuclear force is explained as attraction of the nucleon’s impenetrable volume in the field of 2N- superposed magnetic moment vortices Γ∗μ(r) of another nucleon. The theory predicted the existence of a preon z0≈34 me with quasi-crystalline kernel, experimentally evidenced in 2015 but considered as X- boson of a fifth force, and the field-like nature of the dark energy.

Sign in / Sign up

Export Citation Format

Share Document