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SUMMARY:On the solution of the problem of the cosmological constant
DTSTART;VALUE=DATE-TIME:20240924T131000Z
DTEND;VALUE=DATE-TIME:20240924T131500Z
DTSTAMP;VALUE=DATE-TIME:20260316T204830Z
UID:indico-contribution-369@indico.bitp.kiev.ua
DESCRIPTION:Speakers: Oleksandr Bukalov (Centre for Physical and Space Res
 earch\, International Institute of Socionics)\nCalculation of the vacuum e
 nergy density in quantum field theory gives a value $10^{122}$ times highe
 r than the observed one\, and many proposed approaches have not solved thi
 s problem and have not calculated its real value. However\, the applicatio
 n of the microscopic theory of superconductivity to the description of the
  physical vacuum on the Planck scale made it possible to solve the problem
  of the cosmological constant and obtain a formula for the observed vacuum
  density or dark energy. Its numerical value is $6.09 \\cdot 10^{-30} g/cm
 ^3$\, and it is in complete agreement with observations\, since the experi
 mental value is $(6.03 ± 0.13) \\cdot 10^{-30} g/cm^3$ (J. Prat\, C. Hoga
 n\, C. Chang\, J. Frieman\, 2022).\nThe cosmological model with supercondu
 ctivity (CMS)\, proposed by the author\, also implies a description of the
  earliest stage of the Universe evolution preceding the inflation stage. I
 t describes the formation of the inflaton field as a special condensate of
  primordial fermions with the Planck mass\, followed by the inflationary e
 xpansion of the early Universe. The current expansion of the Universe and 
 its evolution are described as an ongoing second-order phase transition\, 
 and the flow of physical cosmological time is a consequence of processes o
 ccurring on Planck scales. The value of the Hubble parameter $H_0=69.76 \\
  km \\cdot s^{-1}Mpc^{-1}$ calculated in CMS corresponds to the average va
 lue for most values of this parameter obtained by different methods. CMS a
 lso describes black holes as a quantum condensate of primary fermions with
  Planck mass.\n\nReferences:\n\n 1. Weinberg\, S.\, “The cosmological co
 nstant problem”\, Reviews of Modern Physics\, vol. 61\, no. 1\, APS\, pp
 . 1–23\, 1989. doi:10.1103/RevModPhys.61.1.\n 2. Bukalov\, A. V.\, “Th
 e Solution of the Cosmological Constant Problem and the Formation of the S
 pace-Time Continuum”\, Odessa Astronomical Publications\, vol. 29\, p. 4
 2\, 2016. doi:10.18524/1810-4215.2016.29.84962.\n 3. Pitaevskii\, L. P.\, 
 Lifshitz\, E. M. Statistical Physics Part 2 (1980).\n 4. Fomin\, P. I.\, 
 “Zero cosmological constant and Planck scales phenomenology”\, Proc. o
 f the Fourth Seminar on Quantum Gravity\, May 25–29\, Moskow / Ed. by M.
 A.Markov. — Singapore: World Scientific\, 1988. — P. 813.\n 5. Fomin\,
  P. I.\, “On the crystal-like structure of physical vacuum at Planck dis
 tances”\, Problems of physical kinetics and solid state physics. Kyiv: N
 aukova dumka\, 1990. — P. 387–398.\n 6. Bukalov\, A. V.\, “On solvin
 g the problem of the cosmological constant”\, Proceedings of 12-th Odess
 a International Astronomical Gamow Conference-School “Astronomy and Beyo
 nd: Astrophysics\, Cosmology and Gravitation\, Cosmomicrophysics\, Radio-a
 stronomy and Astrobiology” 20-26 August\, 2012\, Odessa\, Ukraine. — P
 . 28.\n 7. Prat\, J.\, Hogan\, C.\, Chang\, C.\, and Frieman\, J.\, “Vac
 uum energy density measured from cosmological data”\, Journal of Cosmolo
 gy and Astroparticle Physics\, vol. 2022\, no. 6\, IOP\, 2022. doi:10.1088
 /1475-7516/2022/06/015. arXiv:2111.08151.\n\nhttps://indico.bitp.kiev.ua/e
 vent/13/contributions/369/
LOCATION:Bogolyubov Institute for Theoretical Physics (Section 1-4)\, Inst
 itute of Mathematics (Section 5) 322
URL:https://indico.bitp.kiev.ua/event/13/contributions/369/
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