Quantum-Classical Computation of Schwinger Model Dynamics using Quantum Computers

Autor:	Klco, N., Dumitrescu, E. F., McCaskey, A. J., Morris, T. D., Pooser, R. C., Sanz, M., Solano, E., Lougovski, P., Savage, M. J.
Rok vydání:	2018
Předmět:	Quantum Physics High Energy Physics - Lattice High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory
Zdroj:	Phys. Rev. A 98, 032331 (2018)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.98.032331
Popis:	We present a quantum-classical algorithm to study the dynamics of the two-spatial-site Schwinger model on IBM's quantum computers. Using rotational symmetries, total charge, and parity, the number of qubits needed to perform computation is reduced by a factor of $\sim 5$, removing exponentially-large unphysical sectors from the Hilbert space. Our work opens an avenue for exploration of other lattice quantum field theories, such as quantum chromodynamics, where classical computation is used to find symmetry sectors in which the quantum computer evaluates the dynamics of quantum fluctuations. Comment: 5 pages, 4 figures, 23 pages supplemental, 8 figures supplemental
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1803.03326 Zobrazit plný text záznamu View this record from Arxiv