كوانتومي در سامانه هاي باز الكترونانواپتومكانيكي CNOT پياده سازي درگاه

The realization of a quantum CNOT gate in electro-nano-optomechanical systems is not only technologically significant but also holds importance for fundamental research in understan‎ding the workings of nature. Achieving such technology can place us among the few leading countries in quantum technology. In this research, we investigate the implementation of a universal gate set, on of Divincenzo’s criteria for realizing quantum computers, in a system consisting of coupled mechanical nano-oscillators subjected to electric fields an‎d interacting optomechanically with a microtoroid. The desired universal set includes single-qubit Pauli gates an‎d a two-qubit CNOT gate. The implementation of this universal gate set is investigated through both analytical an‎d numerical approaches. In the analytical method, after deriving the necessary conditions for implementing single-qubit Pauli gates, it is shown that the CNOT gate is achieved with a fidelity of 1 for all initial states. This is further pursued in the numerical method by numerically solving the master equation. In this approach, the fidelity of the CNOT gate is extracted for different initial states, an‎d the times at which the fidelity is maximized are determined.

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