Theoretical Physics

 

Recent Submissions

  • New Fermionic Soft Theorems for Supergravity Amplitudes 

    Chen, W-M; Huang, Y-T; Wen, C (American Physical Society, 2015-07)
    Soft limits of a massless S matrix are known to reflect the symmetries of the theory. In particular, for theories with Goldstone bosons, the double-soft limit of scalars reveals the coset structure of the vacuum manifold. ...

  • ABJM amplitudes and the positive orthogonal Grassmannian 

    Huang, YT; Wen, C (Springer, 2014-02-25)
    A remarkable connection between perturbative scattering amplitudes of four dimensional planar SYM, and the stratification of the positive Grassmannian, was revealed in the seminal work of Arkani-Hamed et al. Similar extension ...

  • Proof of a modular relation between 1-, 2- and 3-loop Feynman diagrams on a torus 

    D'Hoker, E; Green, MB; Vanhove, P (Elsevier, 2017-09)
    The coefficients of the higher-derivative terms in the low energy expansion of genus-one graviton Type II superstring scattering amplitudes are determined by integrating sums of non-holomorphic modular functions over the ...

  • Modular graph functions 

    D'Hoker, E; Green, MB; Gürdoğan, Ö; Vanhove, P (International Press of Boston, Inc, 2017)
    In earlier work we studied features of non-holomorphic modular functions associated with Feynman graphs for a conformal scalar field theory on a two-dimensional torus with zero external momenta at all vertices. Such ...

  • Generalized Wilson-Fisher Critical Points from the Conformal Operator Product Expansion 

    Gliozzi, F; Guerrieri, AL; Petkou, AC; Wen, C (American Physical Society, 2017-02)
    We study possible smooth deformations of the generalized free conformal field theory in arbitrary dimensions by exploiting the singularity structure of the conformal blocks dictated by the null states. We derive in this ...
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