A quantum-computer algorithm is proposed for computing parton distribution functions and hadronic tensors, with a Thirring-model demonstration and QCD resource estimates that favor extracting PDFs by fitting the hadronic tensor.
Simulation of Nonequilibrium Dynamics on a Quantum Computer
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abstract
We present a hybrid quantum-classical algorithm for the time evolution of out-of-equilibrium thermal states. The method depends upon classically computing a sparse approximation to the density matrix, and then time-evolving each matrix element via the quantum computer. For this exploratory study, we investigate the time-dependent Heisenberg model with five spins on the Rigetti Forest quantum virtual machine and a one spin system on the Rigetti 8Q-Agave quantum processor.
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Parton Physics on a Quantum Computer
A quantum-computer algorithm is proposed for computing parton distribution functions and hadronic tensors, with a Thirring-model demonstration and QCD resource estimates that favor extracting PDFs by fitting the hadronic tensor.