000			02307nab a2200337 c 4500
001			vtls000620182
003			RU-ToGU
005			20230319212102.0
007			cr |
008			180125|2017 xxu s a eng d
024	7		_a10.1016/j.physletb.2017.09.045 _2doi
035			_ato000620182
040			_aRU-ToGU _brus _cRU-ToGU
100	1		_aBarvinsky, Andrei O. _9104505
245	1	0	_aDarkness without dark matter and energy - generalized unimodular gravity _cA. O. Barvinsky, A. Y. Kamenshchik
504			_aБиблиогр.: 26 назв.
520	3		_aWe suggest a Lorentz non-invariant generalization of the unimodular gravity theory, which is classically equivalent to general relativity with a locally inert (devoid of local degrees of freedom) perfect fluid having an equation of state with a constant parameter w. For the range of w near −1 this dark fluid can play the role of dark energy, while for w=0 this dark dust admits spatial inhomogeneities and can be interpreted as dark matter. We discuss possible implications of this model in the cosmological initial conditions problem. In particular, this is the extension of known microcanonical density matrix predictions for the initial quantum state of the closed cosmology to the case of spatially open Universe, based on the imitation of the spatial curvature by the dark fluid density. We also briefly discuss quantization of this model necessarily involving the method of gauge systems with reducible constraints and the effect of this method on the treatment of recently suggested mechanism of vacuum energy sequestering.
653			_aунимодулярная гравитация
653			_aтемная материя
653			_aкосмология
653			_aВселенная
653			_aквантовое состояние
653			_aвакуумная энергия
655		4	_aстатьи в журналах _9879358
700	1		_aKamenshchik, A. Yu. _9480103
773	0		_tPhysics Letters B _d2017 _gVol. 774. P. 59-63 _x0370-2693
852	4		_aRU-ToGU
856	7		_uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000620182
908			_aстатья
999			_c431023