MCPhaseGate¶

class MCPhaseGate(lam, num_ctrl_qubits, label=None)[fuente]¶

Bases: ControlledGate

Multi-controlled-Phase gate.

This is a diagonal and symmetric gate that induces a phase on the state of the target qubit, depending on the state of the control qubits.

Can be applied to a QuantumCircuit with the mcp() method.

Circuit symbol:

    q_0: ───■────
            │
            .
            │
q_(n-1): ───■────
         ┌──┴───┐
    q_n: ┤ P(λ) ├
         └──────┘

Ver también

CPhaseGate: The singly-controlled-version of this gate.

Create new MCPhase gate.

Methods Defined Here

`control`	Controlled version of this gate.
`inverse`	Return inverted MCU1 gate (\(MCU1(\lambda)^{\dagger} = MCU1(-\lambda)\))

Attributes

condition_bits¶: Get Clbits in condition.

ctrl_state¶: Return the control state of the gate as a decimal integer.

decompositions¶: Get the decompositions of the instruction from the SessionEquivalenceLibrary.

definition¶: Return definition in terms of other basic gates. If the gate has open controls, as determined from self.ctrl_state, the returned definition is conjugated with X without changing the internal _definition.

duration¶: Get the duration.

label¶: Return instruction label

name¶

Get name of gate. If the gate has open controls the gate name will become:

<original_name_o<ctrl_state>

where <original_name> is the gate name for the default case of closed control qubits and <ctrl_state> is the integer value of the control state for the gate.

num_clbits¶: Return the number of clbits.

num_ctrl_qubits¶

Get number of control qubits.

Devuelve: The number of control qubits for the gate.
Tipo del valor devuelto: int

num_qubits¶: Return the number of qubits.

params¶

Get parameters from base_gate.

Devuelve: List of gate parameters.
Tipo del valor devuelto: list
Muestra: CircuitError – Controlled gate does not define a base gate

unit¶: Get the time unit of duration.