Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Soo, Chopin"'
Autor:
Soo, Chopin
Publikováno v:
Universe, 2023, Volume 9, Issue 12, 489
The exact solution of the Hamiltonian constraint in canonical gravity and the resultant reduction of Einstein's theory reveal the synergy between gravitation and the intrinsic cosmic clock of our expanding universe. Intrinsic Time Geometrodynamics ad
Externí odkaz:
http://arxiv.org/abs/2308.00371
A toy model (suggested by Klauder) is analyzed from the perspective of First Class and Second Class Dirac constrained systems. The comparison is made by turning a First Class into a Second Class system with the introduction of suitable auxiliary cond
Externí odkaz:
http://arxiv.org/abs/2108.13210
Autor:
Soo, Chopin
This thesis is a study of classical and quantum gravity with Ashtekar variables. The Ashtekar constraints are shown to capture the essence of the constraints and constraint algebra of General Relativity in four dimensions. A classification scheme of
Externí odkaz:
http://hdl.handle.net/10919/38626
http://scholar.lib.vt.edu/theses/available/etd-06192006-125720/
http://scholar.lib.vt.edu/theses/available/etd-06192006-125720/
Publikováno v:
Phys. Rev. D 97, 104021 (2018)
In an ever-expanding spatially closed universe, the fractional change of the volume is the preeminent intrinsic time interval to describe evolution in General Relativity. The expansion of the universe serves as a subsidiary condition which transforms
Externí odkaz:
http://arxiv.org/abs/1711.01394
Publikováno v:
Class. Quantum Grav. 38 035007 (2021)
The Hamiltonian of Intrinsic Time Gravity is elucidated. The theory describes Schrodinger evolution of our universe with respect to the fractional change of the total spatial volume. Gravitational interactions are introduced by extending Klauder's mo
Externí odkaz:
http://arxiv.org/abs/1707.02720
Publikováno v:
Eur. Phys. J. C (2018) 78: 723
Gravitational waves are investigated in Intrinsic Time Geometrodynamics. This theory has a non-vanishing physical Hamiltonian generating intrinsic time development in our expanding universe, and four-covariance is explicitly broken by higher spatial
Externí odkaz:
http://arxiv.org/abs/1704.00296
Autor:
Soo, Chopin
Publikováno v:
Int. J. Mod. Phys. D, 25 (2016) 1645008 (10pp)
Quantum geometrodynamics with intrinsic time development is presented. Paradigm shift from full space-time covariance to spatial diffeomorphism invariance yields a non-vanishing Hamiltonian, a resolution of the `problem of time', and gauge-invariant
Externí odkaz:
http://arxiv.org/abs/1603.02854
Autor:
Soo, Chopin, Yu, Hoi-Lai
Publikováno v:
Chin. J. Phys. 53, 110106 (2015)
A new set of fundamental commutation relations for quantum gravity is presented. The basic variables are the eight components of the unimodular part of the spatial dreibein and eight SU(3) generators which correspond to Klauder's momentric variables.
Externí odkaz:
http://arxiv.org/abs/1601.03824
Autor:
Lin, Huei-Chen, Soo, Chopin
Publikováno v:
Chin. J. Phys. 53, 110102 (2015)
Intrinsic time quantum geometrodynamics resolved `the problem of time' and bridged the deep divide between quantum mechanics and canonical quantum gravity with a Schrodinger equation which describes evolution in intrinsic time variable. In this forma
Externí odkaz:
http://arxiv.org/abs/1601.03823
Publikováno v:
Prog. Theor. Exp. Phys. (2015) 083E01
Quantum Geometrodynamics with intrinsic time development and momentric variables is presented. An underlying SU(3) group structure at each spatial point regulates the theory. The intrinsic time behavior of the theory is analyzed, together with its gr
Externí odkaz:
http://arxiv.org/abs/1501.06282