Carlo Gabriel G, Benenti Giuliano, Casati Giulio
Center for Nonlinear and Complex Systems, Università degli Studi dell'Insubria and Istituto Nazionale per la Fisica della Materia, Unità di Como, Via Valleggio 11, 22100 Como, Italy.
Phys Rev Lett. 2003 Dec 19;91(25):257903. doi: 10.1103/PhysRevLett.91.257903.
We study the fidelity of quantum teleportation for the situation in which quantum logic gates are used to provide the long distance entanglement required in the protocol, and where the effect of a noisy environment is modeled by means of a generalized amplitude damping channel. Our results demonstrate the effectiveness of the quantum trajectories approach, which allows the simulation of open systems with a large number of qubits (up to 24). This shows that the method is suitable for modeling quantum information protocols in realistic environments.
我们研究了量子隐形传态的保真度，该情形是利用量子逻辑门来提供协议中所需的长距离纠缠，且噪声环境的影响通过广义振幅阻尼信道来建模。我们的结果证明了量子轨迹方法的有效性，该方法能够模拟具有大量量子比特（多达24个）的开放系统。这表明该方法适用于对实际环境中的量子信息协议进行建模。
