Experimental Model of Pancreonecrosis Induced by Auto-bile Injection

AIM: The aim of the study is to create an easily reproducible experimental model of pancreonecrosis with the least aggressive technique of the operation. METHODS: Twenty-two outbred rabbits of comparable weight and age were included in the study. The animals were removed from the experiment 12, 24, and 48 h after the injection of auto-bile into the parenchyma of the pancreas. RESULTS: After completion of the experiment, rabbit pancreas was extracted, macroscopic and microscopic description was given. CONCLUSION: According to the results of the study, the proposed model is considered as consistent for reproducing pancreonecrosis in an experiment with less aggressive surgical technique

Coupler Microwave-Activated Controlled-Phase Gate on Fluxonium Qubits

Tunable couplers have recently become one of the most powerful tools for implementing two-qubit gates between superconducting qubits. A tunable coupler typically includes a nonlinear element, such as a superconducting quantum interference device, which is used to tune the resonance frequency of an LC circuit connecting two qubits. Here we propose a complimentary approach where instead of tuning the resonance frequency of the tunable coupler by applying a quasistatic control signal, we excite by microwave the degree of freedom associated with the coupler itself. Because of strong effective longitudinal coupling between the coupler and the qubits, the frequency of this transition strongly depends on the computational state, leading to different phase accumulations in different states. Using this method, we experimentally demonstrate a controlled-Z gate of 44-ns duration on a fluxonium-based quantum processor, obtaining a fidelity of 97.6%±0.4% characterized by cross-entropy benchmarking