Pooja Siwach

Research interests

My research explores the use of quantum computing and quantum information science to tackle open problems in nuclear physics and astrophysics. I develop noise-resilient quantum simulation protocols, efficient encodings, and symmetry-projection methods to make realistic simulations of nuclear structure and neutrino many-body dynamics feasible on near-term and next-generation quantum devices. I also use quantum information tools, together with tensor network methods, to study collective neutrino oscillations in environments such as core-collapse supernovae and the early universe. Complementing these efforts, I investigate exotic nuclei at the limits of stability and quantum correlations in nuclear fission, connecting fundamental nuclear structure to astrophysical phenomena.

Selected publications

1. New proton emitter 188At implies an interaction unprecedented in heavy nuclei. H. Kokkonen, K. Auranen, P. Siwach et al., Nat. Comm. 16, 4985 (2025)

2. Entanglement in three-flavor collective neutrino oscillations. P. Siwach, A. M. Suliga, A. B. Balantekin 107, 023019 (2023)

3. Filtering states with total spin on a quantum computer. P. Siwach and D. Lacroix. Phys. Rev. A 104, 062435 (2021)

4. Quantum simulation of nuclear Hamiltonian with a generalized transformation for Gray code encoding. P. Siwach and P. Arumugam. Phys. Rev. C 104, 034301 (2021)