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Journal Article

Non-linear quantum-classical scheme to simulate non-equilibrium strongly correlated fermionic many-body dynamics

MPS-Authors
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Clark,  Stephen R.
Department of Physics, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom;
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

External Resource
Fulltext (public)

srep32940.pdf
(Publisher version), 713KB

1510.05703v3.pdf
(Preprint), 4MB

Supplementary Material (public)

srep32940-s1.pdf
(Supplementary material), 464KB

Citation

Kreula, J. M., Clark, S. R., & Jaksch, D. (2016). Non-linear quantum-classical scheme to simulate non-equilibrium strongly correlated fermionic many-body dynamics. Scientific Reports, 6: 32940. doi:10.1038/srep32940.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-4837-1
Abstract
We propose a non-linear, hybrid quantum-classical scheme for simulating non-equilibrium dynamics of strongly correlated fermions described by the Hubbard model in a Bethe lattice in the thermodynamic limit. Our scheme implements non-equilibrium dynamical mean field theory (DMFT) and uses a digital quantum simulator to solve a quantum impurity problem whose parameters are iterated to self-consistency via a classically computed feedback loop where quantum gate errors can be partly accounted for. We analyse the performance of the scheme in an example case.