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  • Classification of all 3 particle S-matrices quadratic in photons or gravitons 
    Chakraborty, Soumangsu; Chowdhury, Subham Dutta; GOPALKA, TUSHAR; Kundu, Suman; Minwalla, Shiraz; Mishra, Amiya (Springer Nature, 2020-04)
    We explicitly construct every kinematically allowed three particle graviton- graviton-P and photon-photon-P S-matrix in every dimension and for every choice of the little group representation of the massive particle P. We ...
  • A CFT interpretation of cosmological correlation functions in α−vacua in de-Sitter space 
    JAIN, SACHIN; Kundu, Nilay; Kundu, Suman; MEHTA, ABHISHEK; Sake, Sunil Kumar (Springer Nature, 2023-05)
    De-Sitter(dS) space allows for a generalized class of vacua, known as α–vacua, described by some parameters. The Bunch-Davies (BD) vacuum is a point in this parameter space. The cosmological correlation function in BD ...

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