Classical and Quantum Simulations of Nuclear Dynamics - Sofia Quaglioni

Intro
We need reliable theory to accurately evaluate S-factors at stellar energies
We combine nuclear forces derived within chiral effective field theory and ab initio methods
Structure, scattering and reactions obtained with unified treatment of bound and unbound states
combine it with experimental data to arrive at an improved evaluation of S..(0)
The ab initio structure and reactions team
Quantum computers perform calculations by manipulating quantum states
A physical realization of a qubit is a transmon
One can also work with registers of d-level quantum systems or qudits
Physically, quantum gates are realized by irradiation with resonant microwave pulses (found by optimization)
Quantum computing offers a natural framework for simulating time-dependent scattering theory
A challenge is to realize useful quantum simulations in this early vacuum tube era' of quanturn computing
In the near term, this is a self-inflicted problem! Can build custom gates for the problem of interest
We can extract the energy spectrum from the signal because we are able to run the simulation a long time
Custom gates enable major performance improvements for state preparation, broader class of problems
The APS Topical Group On Few-Body Systems
With minimal number of custom gates, we demonstrated 99% fidelity, 10-fold increase in quantum simulation time