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Pre-inflationary universe in loop quantum cosmology
The evolutions of the flat FLRW universe and its linear perturbations are studied systematically in the dressed metric approach of LQC. When it is dominated by the kinetic energy of the inflaton atExpand
Universal features of quantum bounce in loop quantum cosmology
Abstract In this Letter, we study analytically the evolutions of the flat Friedmann–Lemaitre–Robertson–Walker (FLRW) universe and its linear perturbations in the framework of the dressed metricExpand
The Inability of the White-Juday Warp Field Interferometer to Spectrally Resolve Spacetime Distortions
This paper contends that the spacetime distortions resulting from the experimentally obtainable electric field of a parallel plate capacitor configuration cannot be detected by the White-Juday WarpExpand
M-fluences on String Model Building
Common to many classes of three family SU(3)_C x SU(2)_L x U(1)_Y string models are an additional anomalous U(1)_A and numerous, often fractionally charged, exotic particles beyond the minimalExpand
Aspects of fractional superstrings
We investigate some issues relating to recently proposed fractional superstring theories withDcritical<10. Using the factorization approach of Gepner and Qiu, we systematically rederive the partitionExpand
String Cosmology: A Review
The second string revolution, which begin around 1995, has led to a drastic alteration in our perception of the universe, perhaps even more so then did the first string revolution of 1984. That is,Expand
String derived MSSM and M-theory Unification
Abstract The recent conjecture of possible equivalence between the string scale M S and the minimal supersymmetric standard model unification scale M U ≈2.5×10 16 GeV is considered in the context ofExpand
High-order primordial perturbations with quantum gravitational effects
In this paper, we provide a systematic investigation of high-order primordial perturbations with nonlinear dispersion relations due to quantum gravitational eects in the framework of uniformExpand
Left-Right Symmetric Heterotic-String Derived Models
Recently it was demonstrated that free fermionic heterotic strings can produce models with solely the minimal supersymmetric standard model states in the low energy spectrum. This unprecedentedExpand
NAHE-based string models with SU(4)×SU(2)×U(1) SO(10) subgroup
The orbifold GUT doublet–triplet splitting mechanism was discussed in 1994 in the framework of the NAHE-based free fermionic models in which the SO(10) GUT symmetry is broken to SO(6)×SO(4),Expand