Computing real time correlation functions on a hybrid classical/quantum
computer
- URL: http://arxiv.org/abs/2001.11145v1
- Date: Thu, 30 Jan 2020 01:43:21 GMT
- Title: Computing real time correlation functions on a hybrid classical/quantum
computer
- Authors: Niklas Mueller, Andrey Tarasov, Raju Venugopalan
- Abstract summary: We discuss a worldline approach to compute nuclear structure functions in the high energy Regge limit of QCD using a hybrid quantum computer.
Our simplest example of computing the well-known dipole model result for the structure function $F$ in the high energy Regge limit is feasible with NISQ era technology using few qubits and shallow circuits.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Quantum devices may overcome limitations of classical computers in studies of
nuclear structure functions and parton Wigner distributions of protons and
nuclei. In this talk, we discuss a worldline approach to compute nuclear
structure functions in the high energy Regge limit of QCD using a hybrid
quantum computer, by expressing the fermion determinant in the QCD path
integral as a quantum mechanical path integral over $0+1$-dimensional fermionic
and bosonic world-lines in background gauge fields. Our simplest example of
computing the well-known dipole model result for the structure function $F_2$
in the high energy Regge limit is feasible with NISQ era technology using few
qubits and shallow circuits. This example can be scaled up in complexity and
extended in scope to compute structure functions, scattering amplitudes and
other real-time correlation functions in QCD, relevant for example to describe
non-equilibrium transport of quarks and gluons in a Quark-Gluon-Plasma.
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