  Quantum computers have proven to be effective in simulating many quantum
systems. Simulating nuclear processes and state preparation poses significant
challenges, even for traditional supercomputers. This study demonstrates the
feasibility of a complete simulation of a nuclear transition, including the
preparation of both ground and first excited states. To tackle the complexity
of strong interactions between two and three nucleons, the states are modeled
on the tritium nucleus. Both the initial and final states are represented using
quantum circuits with variational quantum algorithms and inductive biases.
Describing the spin-isospin states requires four qubits, and a parameterized
quantum circuit that exploits a total of 16 parameters is initialized. The
estimated energy has a relative error of approximately 2% for the ground state
and about 10% for the first excited state of the system. The quantum computer
simulation estimates the transition probability between the two states as a
function of the dipole polarization angle. This work marks a first step towards
leveraging digital quantum computers to simulate nuclear physics.
