Results 281 to 290 of about 129,163 (322)
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Quantum CTC's in General Relativity
General Relativity and Gravitation, 2001Closed timelike curves and their importance in theories of quantum gravity are discussed at the example of tunneling spacetimes constructed from generalized Misner spacetimes. These models are quantum mechanically stable and show negative energy densities and closed timelike curves at the Planck scale.
Garay, Luis J. +1 more
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GENERAL RELATIVITY AND QUANTUM MECHANICS
International Journal of Modern Physics A, 2001Usual quantum mechanics requires a fixed background spacetime geometry and its associated causal structure. A generalization of the usual theory may therefore be needed at the Planck scale for quantum theories of gravity in which spacetime geometry is a quantum variable.
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Quantum Gauge General Relativity
Communications in Theoretical Physics, 2004Based on gauge principle, a new model on quantum gravity is proposed in the frame work of quantum gauge theory of gravity. The model has local gravitational gauge symmetry, and the field equation of the gravitational gauge field is just the famous Einstein's field equation.
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Quantum Structures in Einstein General Relativity
Letters in Mathematical Physics, 2000The author presents a generalization of the geometric covariant formulation of the Galilei classical mechanics and quantum mechanics on a curved spacetime. This generalization is related to the geometric quantization. He defines an Einstein general relativistic quantum structure in analogy to the known Galilean.
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Quantum and non-quantum anomalies in general relativity
Nuclear Physics B - Proceedings Supplements, 1991zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Modern Canonical Quantum General Relativity
Classical and Quantum Gravity, 2008The open problem of constructing a consistent and experimentally tested quantum theory of the gravitational field has its place at the heart of fundamental physics. The main approaches can be roughly divided into two classes: either one seeks a unified quantum framework of all interactions or one starts with a direct quantization of general relativity.
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Quantum Clocks in General Relativity
2017This chapter derives and discusses quantisation of the relativistic “clock” Hamiltonian, providing dynamics of low energy quantum systems with internal degrees of freedom in a fixed background.
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Connections, loops and quantum general relativity
Classical and Quantum Gravity, 1992Summary: The current status of a programme for non-perturbative canonical quantization of general relativity is briefly summarized.
Ashtekar, Abhay, Rovelli, Carlo
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Quantum Mechanics from General Relativity
1986Discussion is given to the conceptual and mathematical change from the probability calculus of quantum mechanics to a weighting formalism, when the paradigm change takes place from linear quantum mechanics to the nonlinear, holistic field theory that accompanies general relativity, as a fundamental theory of matter.
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