7.16两量子比特门(Binary Gate) 两量子比特门作用在两个量子比特上,表示为一个4*4的矩阵。能将一个四维矢量转变为另一个四维矢量。接下来讲一些比较特别两量子比特门。 7.17控制非门/CNOT门(Controlled NOT Gate,CNOT Gate) CNOT门的作用是,当第一个量子比特(称为控制比特)处在在1初态时,翻转第二个量子比特(...
完成最基本的幺正操作的量子装置称为量子逻辑门,简称量子门(Quantum Gate)。量子门按照它作用的量子位即qubit的数目可 …www.lwfree.cn|基于4个网页 2. 旋转量子门 单电子... ... ) single-qubit rotation gate 单量子比特旋转门 ) Quantum gate 旋转量子门 ) quantum rotation gate 量子旋转门 ... www....
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4.4 通用量子门(Universal quantum gate) 在经典的计算中,仅需与、或、非三种运算就可完成所有的逻辑操作,我们说这三种运算对于经典计算是普适的或者通用的(universal)。 对于量子计算来说,也有类似的说法,如果任意的酉操作都可以通过某几个基本的门的组合来实现或者以任意精度来逼近的话,我们就称这组量子门是普适...
rxGate x-axis rotation gate 1 ⎡⎢⎢⎢⎣cos(θ2)−isin(θ2)−isin(θ2)cos(θ2)⎤⎥⎥⎥⎦ Special unitary (determinant is 1) Continuous parameter θ with period 4π ryGate y-axis rotation gate 1 ⎡⎢⎢⎢⎣cos(θ2)sin(θ2)−sin(θ2)cos(θ2)⎤⎥...
A quantum gate contains elementary operations on one, two, or a small number of qubits. From: Advances in Imaging and Electron Physics, 2016 About this pageSet alert Also in subject area: EngineeringDiscover other topics On this page Definition Chapters and Articles Related Terms Recommended Public...
The gate-learning procedure corresponds to a global maximisation of the fidelity (3). However, because of the many parameters in the Hamiltonian (1), F ¯ can have many local maxima, making the global optimisation extremely complicated. As most global optimisation algorithms introduce stochastic ...
gate. To overcome these limitations, we propose channel spectrum benchmarking (CSB), a method to infer the noise properties of the target gate, including process fidelity, stochastic fidelity, and some unitary parameters, from the eigenvalues of its noisy channel. Our CSB method is insensitive to...
而量子计算则有完全不同的一套逻辑运算,它们被称为量子门 (quantum gate)。我们并不能在一个量子计算机上编译现有的C++程序。因为经典计算机和量子计算机有不同的逻辑门构造,所以量子算法是需要利用这些量子门的特殊性来构造的。量子门在数学上可以被表示成酉矩阵(unitary matrix)。酉矩阵操作可以保证向量的长度不变...
If the gate requires the control qubit to be in the |1〉 state, this is denoted by a filled-in circle on the control qubit’s wire. If the condition is set on the control qubit being in the |0〉 state instead, we denote this with an empty circle, as seen below:...