11 citations · 17 across the 10 of their papers we have counts for
10 papers
Cosmological Correlators Using Tensor Networks
Ujjwal Basumatary, Aninda Sinha, Xinan Zhou
We develop a nonperturbative tensor-network framework for computing cosmological correlators in de Sitter space and use it to test the proposal that suitably defined in-in correlat…
Five-point partial waves, splitting constraints and hidden zeros
Arnab Priya Saha, Aninda Sinha
We introduce a partial-wave basis for the double residues of five-point tree amplitudes involving identical external scalar particles, decomposing them into exchanges of definite s…
Lectures on Quantum Field Theory on a Quantum Computer
Aninda Sinha, Ujjwal Basumatary
The lecture notes cover the basics of quantum computing methods for quantum field theory applications. No detailed knowledge of either quantum computing or quantum field theory is…
Fermionic S-matrix and cosmological correlators: T-violation at O(H)
Aman Goyal, Aneek Jana, Swapnanil Mandal +1
We study the Bunch-Davies (BD) and Unruh-de Witt (UdW) de Sitter S-matrices in the presence of spin- fermions. Building on recent work, this enables us to correlate the de Sit…
A stringy dispersion relation for field theory
Faizan Bhat, Arnab Priya Saha, Aninda Sinha
We derive a local, crossing symmetric dispersion relation (CSDR) for 2-2 scattering amplitudes with a parametric ambiguity motivated by string theory. Various limits of the paramet…
Ramanujan's series and conformal field theories
Faizan Bhat, Aninda Sinha
In 1914, Ramanujan unveiled 17 extraordinary infinite series for . In this work, we uncover their physics origin by relating them to 2D logarithmic conformal field theories (L…
Certified Random Number Generation using Quantum Computers
Pingal Pratyush Nath, Aninda Sinha, Urbasi Sinha
In recent decades, quantum technologies have made significant strides toward achieving quantum utility. However, practical applications are hindered by challenges related to scalin…
Bootstrapping string models with entanglement minimization and Machine-Learning
Faizan Bhat, Debapriyo Chowdhury, Arnab Priya Saha +1
We present a new approach to bootstrapping string-like theories by exploiting a local crossing symmetric dispersion relation and field redefinition ambiguities. This approach enabl…
Field theory expansions of string theory amplitudes
Arnab Priya Saha, Aninda Sinha
Motivated by quantum field theory (QFT) considerations, we present new representations of the Euler-Beta function and tree-level string theory amplitudes using a new two-channel, l…
Bootstrapping High-Energy Observables
Faizan Bhat, Debapriyo Chowdhury, Aninda Sinha +2
In this paper, we set up the numerical S-matrix bootstrap by using the crossing symmetric dispersion relation (CSDR) to write down Roy equations for the partial waves. As a motivat…