It is sufficient to set the cosmological constant to zero or to a small number at aninitial time

Erdem, Recai

It is sufficient to set the cosmological constant to zero or to a small number at aninitial time

Recai ERDEM (İzmir Yüksek Teknoloji Enstitüsü, İzmir, Türkiye)

Turkish Journal of Physics

2 0

Yıl: 2016 Cilt: 40 Sayı: 2 Sayfa Aralığı: 175 - 179 Metin Dili: İngilizce İndeks Tarihi: 29-07-2022

It is sufficient to set the cosmological constant to zero or to a small number at aninitial time

Öz:

I point out a simple but usually overlooked fact about the cosmological constant problem: to solve thecosmological constant problem it is sufficient to nd a symmetry or mechanism that sets the cosmological constant tozero or to a tiny value at some time in the past, provided that general relativity is the relevant theory of gravity, andthe energy{momentum tensor (excluding the part of the form of a cosmological constant) is conserved. The relevantsymmetry or mechanism need not be applicable today. Any additional cosmological constant term induced by a phasetransition in the energy{momentum tensor in this case is compensated by a shift in the cosmological constant term ofgravitational origin.

Anahtar Kelime:

Konular: Fizik, Uygulamalı

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

[1]Zeldovich, Y. B.Sov. Phys. Usp.1968,11, 381-398.
[2]Weinberg, S.Rev. Mod. Phys.1989,61, 1-23.
[3]Nobbenhuis, S.Found. Phys.2006,36, 613-680.Preprint gr-qc/0411093.
[4]Tryon, E.P.Nature1973,246, 396-397.
[5]Vilenkin, A.Phys. Rev. D1985,32, 2511-2521.
[6]Gunzig, E.; Ghniau, J; Prigogine, I.Nature1987,330, 621-624.
[7]Prigogine, I;, Ghniau, J.; Gunzig, E.; Nardone, P.Proc. Natl. Acad. Sci. USA1988,85, 7428-7432.
[8]Bonelli, G.; Boyarsky, A.Phys. Lett. B2000,490, 147-153.Preprint hep-th/0004058.
[9]Erdem, R.Phys. Lett. B2006,639, 348{353.Preprint gr-qc/0603080.
[10]Duff, M. J.; Kalkkinen, J.Nucl. Phys. B2006,758, 161-184.Preprint hep-th/0605273.[11]Erdem, R.Phys. Lett. B2005,621, 1117.Preprint hep-th/0410063.
[12]'t Hooft, G.; Nobbenhuuis, S.Class. Quant. Grav.2006,23, 3819-3832.Preprint gr-qc/0602076.
[13]Erdem, R.J. Phys. A2007,40, 6945-6950.Preprint gr-qc/0611111.
[14]Erdem, R.J. Phys. A2008,41, 235401.Preprint arXiv:0712.2989.
[15]Sola, J.J. Phys. Conf. Ser.2015,453, 012015.Preprint arXiv:1306.1527.
[16]Shapiro, I. L.; Sola, J.;Stefancic, H.JCAP2005,01, 012.Preprint hep-ph/0410095.
[17]Sola, J.; Gomez-Valent, A.Int. J. Mod. Phys. D2015,24, 1541003.Preprint arXiv:1501.03832.
[18]Anderson, J.; Finkelstein, D.Am. J. Phys.1971,39, 901-904.
[19]Gao, C.; Brandenberger, R. H.; Cai, Y.; Chen, P.JCAP2014,1409, 021. and the references therein.PreprintarXiv:1405.1644.
[20]Jain, P.; Karmakar, P.; Mitra, S.; Panda, S.; Singh, N. K.JCAP2012,1205, 020.Preprint arXiv:1108.1856.
[21]Cristobal, J. M. F.Annals Phys.2014,350, 441-453.
[22]Padilla, A.; Saltas, I. D.2014,Preprint arXiv:1409.3573.
[23]Nojiri, S.; Odintsov, S. D.Phys. Rep.2011,505, 59-144.Preprint arXiv:1011.0544.
[24]Clifton, T.; Ferreira, P. G.; Padilla, A.; Skordis, C.Phys. Rep.2012,513, 1-189.Preprint arXiv:1106.2476.

APA	Erdem R (2016). It is sufficient to set the cosmological constant to zero or to a small number at aninitial time. , 175 - 179.
Chicago	Erdem Recai It is sufficient to set the cosmological constant to zero or to a small number at aninitial time. (2016): 175 - 179.
MLA	Erdem Recai It is sufficient to set the cosmological constant to zero or to a small number at aninitial time. , 2016, ss.175 - 179.
AMA	Erdem R It is sufficient to set the cosmological constant to zero or to a small number at aninitial time. . 2016; 175 - 179.
Vancouver	Erdem R It is sufficient to set the cosmological constant to zero or to a small number at aninitial time. . 2016; 175 - 179.
IEEE	Erdem R "It is sufficient to set the cosmological constant to zero or to a small number at aninitial time." , ss.175 - 179, 2016.
ISNAD	Erdem, Recai. "It is sufficient to set the cosmological constant to zero or to a small number at aninitial time". (2016), 175-179.

APA	Erdem R (2016). It is sufficient to set the cosmological constant to zero or to a small number at aninitial time. Turkish Journal of Physics, 40(2), 175 - 179.
Chicago	Erdem Recai It is sufficient to set the cosmological constant to zero or to a small number at aninitial time. Turkish Journal of Physics 40, no.2 (2016): 175 - 179.
MLA	Erdem Recai It is sufficient to set the cosmological constant to zero or to a small number at aninitial time. Turkish Journal of Physics, vol.40, no.2, 2016, ss.175 - 179.
AMA	Erdem R It is sufficient to set the cosmological constant to zero or to a small number at aninitial time. Turkish Journal of Physics. 2016; 40(2): 175 - 179.
Vancouver	Erdem R It is sufficient to set the cosmological constant to zero or to a small number at aninitial time. Turkish Journal of Physics. 2016; 40(2): 175 - 179.
IEEE	Erdem R "It is sufficient to set the cosmological constant to zero or to a small number at aninitial time." Turkish Journal of Physics, 40, ss.175 - 179, 2016.
ISNAD	Erdem, Recai. "It is sufficient to set the cosmological constant to zero or to a small number at aninitial time". Turkish Journal of Physics 40/2 (2016), 175-179.