Results 31 to 40 of about 120,147 (251)
Loop Quantum Cosmology, Modified Gravity and Extra Dimensions
Loop quantum cosmology (LQC) is a framework of quantum cosmology based on the quantization of symmetry reduced models following the quantization techniques of loop quantum gravity (LQG).
Xiangdong Zhang
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Perfect Quantum Cosmological Bounce [PDF]
5 pages, revtex, APS style, 1 figure.
Gielen, S., Turok, N.
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Quantum Gravity Effects in Cosmology
Within the geometrodynamic approach to quantum cosmology, we studied the quantum gravity effects in cosmology. The Gibbons-Hawking temperature is corrected by quantum gravity due to spacetime fluctuations and the power spectrum as well as any probe field
Gu Je-An, Pyo Kim Sang, Shen Che-Min
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Tachyon field in loop cosmology
The evolutionary pictures of tachyon field in modified loop cosmology have been investigated. We present the dynamical behavior of the tachyon field associated with an exponential potential and find that the pre-inflation dynamics are very similar in ...
Kui Xiao
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Effective Field Theory of Loop Quantum Cosmology
Quantum cosmology is traditionally formulated in a minisuperspace setting, implicitly averaging fields over space to obtain homogeneous models. For universal reasons related to the uncertainty principle, quantum corrections then depend on the size of the
Martin Bojowald
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Loop cosmological dynamics and dualities with Randall-Sundrum braneworlds [PDF]
The discrete quantum geometric effects play an important role in dynamical evolution in the loop quantum cosmology. These effects which are significant at the high energies lead to the quadratic energy density modifications to the Friedmann equation, as ...
A. Ashtekar +6 more
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On the holographic basis of loop quantum cosmology
In this work, we obtain the loop quantum cosmology dynamical equations, plus a positive cosmological constant, from the Bekenstein–Hawking entropy-area relation given by Loop Quantum Black Holes, by the use of the Jacobson formalism (Phys Rev Lett 75 ...
C. A. S. Silva
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Pytanie o jedność nauki na przykładzie kosmologii antropicznej
Given the ongoing process of the differentiation of sciences, it is worth posing a question about the possibility of them being integrated. This matter will be explored with reference to anthropic cosmology.
Sławomir Leciejewski
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A Brief Introduction to Loop Quantum Cosmology [PDF]
In recent years, Loop Quantum Gravity has emerged as a solid candidate for a nonperturbative quantum theory of General Relativity. It is a background independent theory based on a description of the gravitational field in terms of holonomies and fluxes ...
Marugan, Guillermo A. Mena
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Noncommutative quantum cosmology
Proceedings of DICE2008, Castiglioncello, 22nd-26th September 2008 ...
Bastos, C. +3 more
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