scholarly journals Bianchi IX model: Reducing phase space

2013 ◽  
Vol 87 (8) ◽  
Author(s):  
Ewa Czuchry ◽  
Włodzimierz Piechocki
Keyword(s):  
Phase Space ◽  
Bianchi Ix

scholarly journals THE EXACT COSMOLOGICAL SOLUTION TO THE DYNAMICAL EQUATIONS FOR THE BIANCHI-IX MODEL

2000 ◽  
Vol 15 (20) ◽  
pp. 3207-3220 ◽  
Author(s):  
V. A. SAVCHENKO ◽  
T. P. SHESTAKOVA ◽  
G. M. VERESHKOV
Keyword(s):  
Phase Space ◽  
Schrödinger Equation ◽  
Schrodinger Equation ◽  
Cosmological Solution ◽  
Integrated System ◽  
Extended Phase Space ◽  
Vacuum Condensate ◽  
Extended Phase ◽  
Bianchi Ix ◽  
Gravitational Vacuum

Quantum geometrodynamics in extended phase space describes phenomenologically the integrated system "a physical object + observation means (a gravitational vacuum condensate)." The central place in this version of QGD belongs to the Schrödinger equation for a wave function of the Universe. An exact solution to the "conditionally-classical" set of equations in extended phase space for the Bianchi-IX model and the appropriate solution to the Schrödinger equation are considered. The physical adequacy of the obtained solutions to existing concepts about possible cosmological scenarios is demonstrated. The gravitational vacuum condensate is shown to be a cosmological evolution factor.

A one-dimensional self-gravitating stellar gas

1966 ◽  
Vol 25 ◽  
pp. 46-48 ◽  
Author(s):  
M. Lecar
Keyword(s):  
Gravitational Field ◽  
Phase Space ◽  
Motion Picture ◽  
Space Distribution ◽  
Two Dimensional ◽  
One Dimensional ◽  
Phase Space Distribution ◽  
Dimensional Phase Space ◽  
The Mean

“Dynamical mixing”, i.e. relaxation of a stellar phase space distribution through interaction with the mean gravitational field, is numerically investigated for a one-dimensional self-gravitating stellar gas. Qualitative results are presented in the form of a motion picture of the flow of phase points (representing homogeneous slabs of stars) in two-dimensional phase space.

Phase space of mechanical systems with a gauge group

1991 ◽  
Vol 161 (2) ◽  
pp. 13-75 ◽  
Author(s):  
Lev V. Prokhorov ◽  
Sergei V. Shabanov
Keyword(s):  
Phase Space ◽  
Gauge Group ◽  
Mechanical Systems

Void pattern fluctuation in p-AgBr interactions at 400 GeV/c

2016 ◽  
pp. 4115-4125
Author(s):  
Argha Deb
Keyword(s):  
Experimental Data ◽  
Phase Transition ◽  
Phase Space ◽  
Second Order ◽  
Hadron Phase

The event-by-event fluctuation of hadronic patterns is investigated by finding a measure of the non-hadronic regions, the voids, for the experimental data of p-AgBr interactions at 400 GeV/c considering the anisotropy of phase space. Two moments of the event-to-event fluctuation of voids, <Gq> and Sq have been calculated as defined by R. C. Hwa and Q. H. Zhang to quantify the dependence of the voids on the bin sizes. The results suggest that no quark-hadron phase transition of second order have taken place for p-AgBr interactions at 400 GeV/c. The result have been compared with the result of VENUS generated data.

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