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  • Asymptotic conservation laws for loop level soft photon theorems 
    BHATKAR, SAYALI ATUL (Dept. of Physics, 2021-03)
    In the thesis, we study new asymptotic conservation laws in electromagnetism that could reproduce the loop effects in the soft expansion of QED amplitudes. We also explore interesting properties of asymptotic expansions ...
  • Higher Spin Symmetries in Quantum Field Theories 
    GANDHI, YATHARTH (2021-06)
    Non-perturbative techniques are important for studying Quantum field theory and Conformal field theory. Symmetries provide us with a powerful tool to study the conformal field theories non-perturbatively. Higher spin ...
  • Momentum space correlators in parity-violating CFT3 
    ADITHYA, S. (2021-06)
    Conformal field theory in momentum space has a wide range of applications but has been studied much lesser compared to its position space counterpart. In this thesis, we calculate momentum space 3- point functions in a ...
  • Asymptotic symmetries and dual theories of (2+1) dimensional (super)gravity theories 
    BHATTACHARJEE, ARINDAM (Dept. of Physics, 2021-09)
    In this thesis we use the asymptotic symmetries of 3D (super)gravity theories to explore the dual theories. Using the Chern-Simons formulation of (2+1)D gravity we have constructed a two dimensional theory dual to 3D ...
  • Bosonization in Higher Dimensions 
    JAIN, PRABHAV (2022-05)
    Bosonization is a beautiful phenomena which maps fermions to bosons. In 2D the existence of bosonization is well studied. In 3D however existence of anyons provide us an indirect route to bosonization. A microscopic theory ...
  • Momentum Space Bootstrap of Conformal Correlation Functions 
    SAHOO, BIBHUT (2022-05)
    Correlation functions are one of the most important objects in CFTs. Momentum space CFT correlation functions have wide range of applicability in contexts of cosmology, con- densed matter etc. CFT correlators in momentum ...
  • CFT correlators from slightly broken higher spin symmetry 
    ZADE, AASHNA (2022-05)
    Conformal invariance completely fixes the form of 2- and 3-point functions in a conformal field theory (CFT). However, this does not extend to higher point functions where the correlator is only determined up to arbitrary ...
  • Quantum Field Theory at Strong Coupling 
    MEHTA, ABHISHEK (2023-05)
    Strongly-coupled Quantum Field Theories (QFT) do not admit a perturbative expansion in the coupling and a Lagrangian formulation is not suitable for such theories. This forces us to rely on non-perturbative techniques like ...

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