Package com.quantum4j.core.gates

Class CZGate

java.lang.Object

com.quantum4j.core.gates.TwoQubitGate

com.quantum4j.core.gates.CZGate

All Implemented Interfaces:

Gate

public final class CZGate
extends TwoQubitGate

Controlled-Z (CZ) quantum gate.

A two-qubit gate that applies a phase flip (Z gate) to the target qubit if the control qubit is |1⟩. Equivalently, it applies a -1 phase if both qubits are |1⟩. The gate matrix is diagonal:

 [1  0  0   0 ]
 [0  1  0   0 ]
 [0  0  1   0 ]
 [0  0  0  -1 ]
 

Field Summary

Fields inherited from class com.quantum4j.core.gates.TwoQubitGate

matrix

Constructor Summary

Constructors

Constructor	Description
CZGate()

Method Summary

Modifier and Type	Method	Description
String	name()	Get the name of this gate (e.g., "H", "X", "CNOT").

Methods inherited from class com.quantum4j.core.gates.TwoQubitGate

apply, arity

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CZGate

public CZGate()

Method Details

name

public String name()

Description copied from interface: Gate

Get the name of this gate (e.g., "H", "X", "CNOT").

Returns:

the gate name