This is a controlled version of the U gate (generic single qubit rotation), including a possible global phase e^ {i\gamma} eiγ of the U gate. Can be applied to a QuantumCircuit with the cu() method.

This is a controlled version of the U gate (generic single qubit rotation), including a possible global phase e^ {i\gamma} eiγ of the U gate. Circuit symbol: Matrix representation: In Qiskit’s convention, higher qubit indices are more significant (little endian convention).

This is a controlled version of the U3 gate (generic single qubit rotation). It is restricted to 3 parameters, and so cannot cover generic two-qubit controlled gates).

2024年5月24日 · For remote-controlled quantum gates, the experimental realization of controlled unitary (CU) gates between any quantum gates is an essential task. Here, we propose and experimentally demonstrate a scheme for implementing CU gates between arbitrary pairs of unitary gates using the polarization and time-bin degrees of freedom of single-photons.

CUGate class CUGate(theta, phi, lam, gamma, label=None, ctrl_state=None)[source] ¶ Bases: qiskit.circuit.controlledgate.ControlledGate Controlled-U gate (4-parameter two-qubit gate). This is a controlled version of the U gate (generic single qubit rotation), including a possible global phase eiγ e i γ of the U gate. Circuit symbol:

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的（或通用的）。 接下来，我们来尝试寻找这样的一组量子门。 只对态矢两个或更少部分作用的门称为two-level的。 这一部分我们将证明这样的 two-level矩阵 是普适的。 考虑一个作用于 d …

This is a controlled version of the U gate (generic single qubit rotation), including a possible global phase \ (e^ {i\gamma}\) of the U gate. Can be applied to a QuantumCircuit with the cu () method.

2024年11月4日 · For remote-controlled quantum gates, the experimental realization of controlled unitary (CU) gates between any quantum gates is an essential task. Here, we propose and experimentally demonstrate a scheme for implementing CU gates between any pair of unitary gates using the polarization and time-bin degrees of freedom of single photons.

2011年8月2日 · Controlled-unitary (CU) gates are a particularly important class of circuits, where one 'control' qubit turns on or off a unitary operation U acting on a register of 'target'...

This is a controlled version of the U gate (generic single qubit rotation), including a possible global phase e^ {i\gamma} eiγ of the U gate. Can be applied to a QuantumCircuit with the cu () method.