Results 61 to 70 of about 1,530,241 (273)
Thermodynamics in Loop Quantum Cosmology
Advances in High Energy Physics, 2009 Loop quantum cosmology (LQC) is very powerful to deal with the behavior of early universe. Moreover, the effective loop quantum cosmology gives a successful description of the universe in the semiclassical region.
Li-Fang Li, Jian-Yang Zhu
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Hořava-Lifshitz Scalar Field Cosmology: Classical and Quantum Viewpoints
Advances in High Energy Physics, 2021 In this paper, we study a projectable Hořava-Lifshitz cosmology without the detailed balance condition minimally coupled to a nonlinear self-coupling scalar field.
Fatimah Tavakoli +2 more
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Quantum Cosmology from Group Field Theory Condensates: a Review [PDF]
, 2016 We give, in some detail, a critical overview over recent work towards deriving a cosmological phenomenology from the fundamental quantum dynamics of group field the- ory (GFT), based on the picture of a macroscopic universe as a \condensate" of a large ...
Steffen Gielen, L. Sindoni
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Nonlinear quantum cosmology [PDF]
General Relativity and Gravitation, 2009 Final Journal version: Further clarification in Introduction and Conclusion. references added.
Nguyen, L.-H., Parwani, R.R.
openaire +3 more sources
Effective loop quantum cosmology as a higher-derivative scalar-tensor theory [PDF]
, 2017 Recently, Chamseddine and Mukhanov introduced a higher-derivative scalar-tensor theory which leads to a modified Friedmann equation allowing for bouncing solutions.
D. Langlois +3 more
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Quantum Cosmology of f(R, T) gravity [PDF]
Gravity, 2016 Modified gravity theories have the potential of explaining the recent acceleration of the Universe without resorting to the mysterious concept of dark energy. In particular, it has been pointed out that matter–geometry coupling may be responsible for the
Min-Xing Xu, T. Harko, S. Liang
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WKB-type Approximation to Noncommutative Quantum Cosmology [PDF]
, 2007 In this work, we develop and apply the WKB approximation to several examples of noncommutative quantum cosmology, obtaining the time evolution of the noncommutative universe, this is done starting from a noncommutative quantum formulation of cosmology ...
Connes A. +10 more
core +2 more sources
No rescue for the no boundary proposal: Pointers to the future of quantum cosmology [PDF]
, 2017 In recent work, we introduced Picard-Lefschetz theory as a tool for defining the Lorentzian path integral for quantum gravity in a systematic semiclassical expansion. This formulation avoids several pitfalls occurring in the Euclidean approach.
Job Leon Feldbrugge +2 more
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Hybrid loop quantum cosmology and predictions for the cosmic microwave background [PDF]
, 2017 We investigate the consequences of the hybrid quantization approach for primordial perturbations in loop quantum cosmology, obtaining predictions for the cosmic microwave background and comparing them with data collected by the Planck mission.
Laura Castell'o Gomar +3 more
semanticscholar +1 more source