We discuss several aspects of the proposed correspondence between quantum gravity on de Sitter spaces and Euclidean conformal field theories. The central charge appearing in the asymptotic symmetry algebra of three-dimensional de Sitter space is derived both from the conformal anomaly and the transformation law of the CFT stress tensor when going from dS3 in planar coordinates to dS3 with cosmo...

Using results of the thermodynamic Bethe Ansatz approach and conformal perturbation theory we argue that the φ1,3-perturbation of a unitary minimal (1 + 1)-dimensional conformal field theory (CFT) in the D-series of modular invariant partition functions induces a renormalization group (RG) flow to the next-lower model in the D-series. An exception is the first model in the series, the 3-state P...

We investigate the recently proposed Kerr/CFT correspondence in the context of rotating spacetimes with a NUT twist. The Kerr/CFT correspondence states that the near-horizon states of an extremal four (or higher) dimensional black hole could be identified with a certain chiral conformal field theory. The corresponding Virasoro algebra is generated with a class of diffeomorphism which preserves ...

BACKGROUND AND OBJECTIVE Counterfactual thinking (CFT) refers to the generation of mental simulations of alternatives to past events, actions and outcomes. CFT is a pervasive cognitive feature in every-day life and is closely related to decision-making, planning and problem-solving - all of which are cognitive processes linked to unimpaired frontal lobe functioning. Huntington's Disease (HD) is...

The complement fixation test (CFT) and indirect hemolysis test (IHLT) were applied to sera collected from 60 cattle challenged with Brucella abortus 544. Of the 60 cattle, 48 were vaccinated with either B. abortus 19 or B. abortus 45/20 as calves or as adults. The remaining 12 cattle were not vaccinated. Of the 27 sera from cattle found to be infected, 9 showed aberrant reactions to the CFT. Th...

An S-matrix is defined for anti-de Sitter space by constructing “in” and “out” states that asymptote to the timelike boundary. An analog of the LSZ formula shows that this boundary S-matrix is given directly by correlation functions in the boundary conformal theory. This provides a key entry in the AdS to CFT dictionary. † Email address: [email protected] The conjectured AdS/CFT corresp...

The prescription of the AdS/CFT correspondence is refined by using a regularization procedure, which makes it possible to calculate the divergent local terms in the CFT two-point function. We present the procedure for the example of the scalar field. It has been stated in most papers on this subject that the correspondence between a fields theory on anti-de Sitter space (AdS) and a conformal fi...

We realize the two dimensional anti-de Sitter (AdS2) space as a KaluzaKlein reduction of the AdS3 space in the framework of the discrete light cone quantization (DLCQ). Introducing DLCQ coordinates which interpolate the original (unboosted) coordinates and the light cone coordinates, we discuss that AdS2/CFT correspondence can be deduced from the AdS3/CFT . In particular, we elaborate on the de...