Fig. 6: Dynamics in limited-depth QNNs in the example of the XXZ model. | Nature Communications

Fig. 6: Dynamics in limited-depth QNNs in the example of the XXZ model.

From: Dynamical transition in controllable quantum neural networks with large depth

Fig. 6

All notations share the same meaning as in Fig. 2. The critical point \({O}_{\min }(L)\) for such QNNs depends on L and has sample fluctuations. Here random Pauli ansatz (RPA) consists of L = 6 variational parameters (D = L for RPA) on n = 6 qubits, and the parameter in XXZ model is J = 2.

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