Speaker
Description
The dynamical evolution of neutrino flavor in supernovae can be described through simulations of an all-to-all coupled Heisenberg model with random pair couplings. Simulating all-to-all coupled two-local Hamiltonian dynamics, which naturally describes interacting astrophysical neutrinos, presents significant challenges, particularly for medium- and long-time dynamics, where simulation protocols with controllable accuracies require circuit depths that are at least linear in the size of system and therefore probably out of reach on near term devices. Theoretical expectations are that in these systems flavor should thermalize, a prediction verified on small scale classical simulations of the model. In this paper, we study the physics of flavor thermalization on larger systems using random circuit sampling to circumvent the non-locality of interactions. We empirically show that we can reproduce thermal behavior using a depth of O(t), instead of O(Nt) expected from Trotterization.
Email Address of submitter
oriel.kiss@cern.ch
