Comment: 28 pages, references added, to appear in Classical and Quantum Gravity, We have built and tested a 3.5 m high-finesse Fabry-Perot prototype inteferometer with a precision ellipsometer for the QED test and axion search (Q & A) experiment. universe. re-expressed in terms of $g_{\mu\nu}$, $\phi_{\mu\nu\rho}$ and the covariant Comment: 41 pages, 5 figures, standard LaTeX, uses epsf.tex. Elementary methods of calculating the 10j symbol require order(j^9) or more operations and order(j^2) or more space, where j is the average spin. This lays out a framework for studying possible canonical quantum gravity effects, such as those of loop quantum gravity, at an effective level. Binary pulsars also provided Comment: 18 pages REVTeX 4 and AMSLaTeX. In addition, we show that this extension is a high energy correction to the unextended dilaton theories that can affect the topology of space-time. Various vacuum solutions quantum grav, Journal / Magazine / Newspaper, Internet Resource. promising thermal noise reduction compared to presently used amorphous The remaining sum can be performed analytically and possesses a unique and well-defined double-scaling limit, a property which has eluded similar models of Euclidean quantum gravity in the past. static black holes and an (A)dS2 x S1 vacuum. We study the incorporation of gravity into the trace dynamics framework for classical matrix-valued fields, from which we have proposed that quantum field theory is the emergent thermodynamics, with state vector reduction arising from fluctuation corrections to this thermodynamics. which bounce smoothly from contraction to expansion. Moreover, we show that integrals that arise in Cherrington's work are finite. This article reviews the history of We give a short and simple proof that the Lorentzian 10j symbol, which forms a key part of the Barrett-Crane model of Lorentzian quantum gravity, is finite. they exhibit some interesting general patterns: the internal manifold is This tapestry of ideas serves as the motivation for the current paper. and the impact of simple priors. higher accuracy and we examine what this can tell us about spinning systems. We also compute the expectation value of an invariant observable designed to quantify the quantum gravitational back-reaction on inflation. approximately 70% of the laser light. Additionally, in a pedagogical appendix the mass definition in dilaton gravity is briefly reviewed and a unique prescription to fix scaling and shift ambiguity is presented. Finally, we prove that the extended dilaton theories can be formulated as Poisson-Sigma models based on a nonlinear deformation of the extended Poincare algebra. In contrast to scalar and tensor modes, vector modes of linear perturbations around an expanding Friedmann--Robertson--Walker universe decay. new insights into the role of quantum gravity in the observable universe. Quantization on boosted backgrounds is discussed; no anomalous trace of the energy momentum tensor arises and the 1-loop flux component can be adjusted to be equal to the classical flux of the shock wave. Using the holographic renormalization method, we compute the energy-momentum tensor and show that it can always be cast in the form of Cotton tensor for a dual boundary metric. This suggests the existence of a one-parameter generalization of the topological string amplitude, and provides a general framework for constructing automorphic partition functions for black hole degeneracies in theories with sufficient degree of symmetry. Compactification on a spacelike circle gives a IIA configuration with all 26 of the supercharges. Finally, we also show how to use these methods to prove finiteness of integrals based on other graphs and other homogeneous domains. the 1919 measurement and other eclipse measurements, describes modern We use the 2.5 PN spinning waveforms of Arun et al. with Di defined through the co-factor expansion of (4)g by (4)g/(3)g = g00 + g0iDi, and with A(x, y, z) a general function of its three arguments. this geometry. Although our dynamical assumption may not prove to be completely correct, it does have the right time dependence, it can naturally produce primordial perturbations of the right strength, and it illustrates how a rigorous application of the leading logarithm approximation might work in quantum gravity. Relations to the Aichelburg-Sexl spacetime and constant dilaton vacua are pointed out. We use X-pendulum-double-pendulum suspension designs and automatic control schemes developed by the gravitational-wave detection community. important tool for astronomy and cosmology. gravity over the discrete analogs of spacelike hypersurfaces. On the other hand, if a solution of ring horizon topology exists, we conclude that it must be labeled by three independent parameters only, since it has to satisfy two independent constraints that we explicitly find in terms of its chemical potentials. The fit to the acceleration data is consistent with all current satellite, laser ranging and observations for the inner planets. 1 January 1999 | Classical and Quantum Gravity, Vol. Our results provide Our results agree with the prior literature whenever a direct comparison is possible and provide the analysis of a much more diverse class of black hole models than previously considered. We study the dual description of the self-dual orbifold, a locally AdS_3


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