Fig. 8: Step scaling variational quantum results (electric basis and low truncation) as a function of physical distances. | Communications Physics

Fig. 8: Step scaling variational quantum results (electric basis and low truncation) as a function of physical distances.

From: Towards determining the (2+1)-dimensional quantum electrodynamics running coupling with Monte Carlo and quantum computing methods

Fig. 8

l = 1 data for set of static forces F(r1 = 1, g) (\(F({r}_{2}=\sqrt{5},g)\)) found with the VQE, displayed as full squares (full upward-pointing triangles) and for \(F({r}_{1}=\sqrt{2},g)\) (\(F({r}_{2}=\sqrt{5},g)\)) displayed as empty squares (empty upward-pointing triangles). The error bars (standard deviation) are computed with the combination of the variances of the Pauli terms in the Hamiltonian. They are defined by the finite number of shots and are smaller than the markers.

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