mindquantum.core.circuit.DepolarizingChannelAdder

class mindquantum.core.circuit.DepolarizingChannelAdder(p: float, n_qubits: int, add_after: bool = True)[source]

Add DepolarizingChannel.

Parameters

p (float) – probability of occurred depolarizing error.
n_qubits (int) – the qubit number of depolarizing channel.
add_after (bool) – Whether add this channel after quantum gate or not. If False, the channel will add before quantum gate. Default: True.

Examples

>>> from mindquantum.core.circuit import MixerAdder, DepolarizingChannelAdder, GateSelector
>>> from mindquantum.core.circuit import Circuit
>>> circ = Circuit().h(0).x(1, 0)
>>> adder = MixerAdder([GateSelector('cx'), DepolarizingChannelAdder(0.1, 2)])
>>> adder(circ)
      ┏━━━┓       ╔════════════╗
q0: ──┨ H ┠───■───╢            ╟───
      ┗━━━┛   ┃   ║            ║
            ┏━┻━┓ ║ DC(p=1/10) ║
q1: ────────┨╺╋╸┠─╢            ╟───
            ┗━━━┛ ╚════════════╝