We simulate the time evolution of collective neutrino oscillations in two-flavor settings on a quantum computer. We explore the generalization of Trotter-Suzuki approximation to time-dependent Hamiltonian dynamics. The trotterization steps are further optimized using the Cartan decomposition of two-qubit unitary gates U ∈ SU (4) in the minimum number of controlled-NOT (CNOT) gates making the algorithm more resilient to the hardware noise. A more efficient hybrid quantum-classical algorithm is also explored to solve the problem on noisy intermediate-scale quantum (NISQ) devices.
@article{arxiv.2308.09123,
title = {Collective neutrino oscillations on a quantum computer with hybrid quantum-classical algorithm},
author = {Pooja Siwach and Kaytlin Harrison and A. Baha Balantekin},
journal= {arXiv preprint arXiv:2308.09123},
year = {2023}
}