Three-point correlations inf(R)models of gravity
نویسندگان
چکیده
منابع مشابه
Three-point Correlations in ƒ(R) Models of Gravity
Modifications of general relativity provide an alternative explanation to dark energy for the observed acceleration of the universe. We calculate quasilinear effects in the growth of structure in ƒ(R) models of gravity using perturbation theory. We find significant deviations in the bispectrum that depend on cosmic time, length scale and triangle shape. However the deviations in the reduced bis...
متن کاملThree-Point Function in Perturbed Liouville Gravity
Three-point correlation function in perturbed conformal field theory coupled to twodimensional quantum gravity (perturbed Liouville gravity) is explicitly computed by using the free field approach. The representation considered here is the one recently proposed in [1] to describe the string theory in AdS3 space. Consequently, this computation extends previous results which presented free field ...
متن کاملThree-point correlations for quantum star graphs
Abstract. We compute the three point correlation function for the eigenvalues of the Laplacian on quantum star graphs in the limit where the number of edges tends to infinity. This extends a work by Berkolaiko and Keating, where they get the 2point correlation function and show that it follows neither Poisson, nor random matrix statistics. It makes use of the trace formula and combinatorial ana...
متن کاملNoncommutative gravity in three dimensions coupled to point-like sources
Noncommutative gravity in three dimensions with no cosmological constant is reviewed. We find a solution which describes the presence of a torsional source. 1 What does ‘noncommutative’ mean? Please see [1] for a review of noncommutative field theory, if you want to study more. Consider noncommutative coordinates, for example [x, y ] = i θ , (1) where θ is a real constant. Then the ‘uncertainty...
متن کاملThree dimensional loop quantum gravity: coupling to point particles
We consider the coupling between three dimensional gravity with zero cosmological constant and massive spinning point particles. First, we study the classical canonical analysis of the coupled system. Then, we go to the Hamiltonian quantization generalizing loop quantum gravity techniques. We give a complete description of the kinematical Hilbert space of the coupled system. Finally, we define ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2009
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.79.103506