74 citations · 201 across the 10 of their papers we have counts for
10 papers
Towards the Parametric Renormalization of the S-matrix -- I
Pinaki Banerjee, Harsh, Alok Laddha
Zimmermann's forest formula is the corner stone of perturbative renormalization in QFT. By renormalizing individual Feynman graphs, it generates the UV finite S-matrix. This approa…
Phase Thermalization: from Fermi Liquid to Incoherent Metal
Pinaki Banerjee, Bidisha Chakrabarty, Swapnamay Mondal
When a system consists of a large subsystem (bath) and a small one (probe), thermalization implies induction of temperature of the bath onto the probe. If both the bath and the pro…
On Positive Geometries of Quartic Interactions II : Stokes polytopes, Lower Forms on Associahedra and Worldsheet Forms
P B Aneesh, Pinaki Banerjee, Mrunmay Jagadale +3
In [1], two of the present authors along with P. Raman attempted to extend the Amplituhedron program for scalar field theories [2] to quartic scalar interactions. In this paper we…
Analytic Bootstrap for Logarithmic CFT
Pinaki Banerjee, Parijat Dey
We study logarithmic conformal field theory (LogCFT) in four dimensions using conformal bootstrap techniques in the large spin limit. We focus on the constraints imposed by conform…
Stokes Polytopes : The positive geometry for interactions
Pinaki Banerjee, Alok Laddha, Prashanth Raman
In a remarkable recent work [arXiv : 1711.09102] by Arkani-Hamed et al, the amplituhedron program was extended to the realm of non-supersymmetric scattering amplitudes. In particul…
Sine-Gordon Theory : Entanglement entropy and holography
Pinaki Banerjee, Atanu Bhatta, B. Sathiapalan
We compute change in entanglement entropy for a single interval in dimensional sine-Gordon model perturbatively in the coupling. The sine-Gordon perturbation can be thought o…
Higher-point conformal blocks and entanglement entropy in heavy states
Pinaki Banerjee, Shouvik Datta, Ritam Sinha
We consider conformal blocks of two heavy operators and an arbitrary number of light operators in a (1+1)-d CFT with large central charge. Using the monodromy method, these higher-…
Zero Temperature Dissipation and Holography
Pinaki Banerjee, B. Sathiapalan
We use holographic techniques to study the zero-temperature limit of dissipation for a Brownian particle moving in a strongly coupled CFT at finite temperature in various space-tim…
Holographic Brownian motion at finite density
Pinaki Banerjee
Brownian motion of a heavy charged particle at zero and small (but finite) temperature is studied in presence of finite density. We are primarily interested in the dynamics at (nea…
Holographic Brownian Motion in 1+1 Dimensions
Pinaki Banerjee, B. Sathiapalan
We study the motion of a stochastic string in the background of a BTZ black hole. In the 1+1 dimensional boundary theory this corresponds to a very heavy external particle (e.g, a…