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- University of Maryland, College ParkUS243 papers
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10 papers · 2 filters
Recursion Relations for Tree-level Amplitudes in the SU(N) Non-linear Sigma Model
Karol Kampf, Jiri Novotny, Jaroslav Trnka
It is well-known that the standard BCFW construction cannot be used for on-shell amplitudes in effective field theories due to bad behavior for large shifts. We show how to solve t…
Bases in coset conformal field theory from AGT correspondence and Macdonald polynomials at the roots of unity
A. A. Belavin, M. A. Bershtein, G. M. Tarnopolsky
We continue our study of the AGT correspondence between instanton counting on C^2/Z_p and Conformal field theories with the symmetry algebra A(r,p). In the cases r=1, p=2 and r=2,…
Exact ABJM Partition Function from TBA
Pavel Putrov, Masahito Yamazaki
We report on the exact computation of the S^3 partition function of U(N)_k\times U(N)_{-k} ABJM theory for k=1, N=1,...,19. The result is a polynomial in π^{-1} with rational coeff…
Deformed Lorentz symmetry and relative locality in a curved/expanding spacetime
Giovanni Amelino-Camelia, Antonino MarcianÒ, Marco Matassa +1
The interest of part of the quantum-gravity community in the possibility of Planck-scale-deformed Lorentz symmetry is also fueled by the opportunities for testing the relevant scen…
Exact and Numerical Results on Entanglement Entropy in (5+1)-Dimensional CFT
Benjamin R. Safdi
We calculate the shape dependence of entanglement entropy in (5+1)-dimensional conformal field theory in terms of the extrinsic curvature of the entangling surface, the opening ang…
Large N Free Energy of 3d N=4 SCFTs and AdS/CFT
Benjamin Assel, John Estes, Masahito Yamazaki
We provide a non-trivial check of the AdS_4/CFT_3 correspondence recently proposed in arXiv:1106.4253 by verifying the GKPW relation in the large N limit. The CFT free energy is ob…