SimpleLayerGenerator

class SimpleLayerGenerator(two_qudit_gate=CNOTGate, single_qudit_gate_1=U3Gate, single_qudit_gate_2=None, initial_layer_gate=None)[source]

Bases: LayerGenerator

The SimpleLayerGenerator class.

Starts a circuit by placing a single-qudit gate on each qudit. Expands a circuit by placing a two-qudit building block on all valid links. Each building block is composed of a two-qudit gate followed by two single-qudit gates.

__init__(two_qudit_gate=CNOTGate, single_qudit_gate_1=U3Gate, single_qudit_gate_2=None, initial_layer_gate=None)[source]

Construct a SimpleLayerGenerator.

Parameters:

  • two_qudit_gate (Gate) – A two-qudit gate that starts this layer generator’s building block. (Default: CNOTGate())

  • single_qudit_gate_1 (Gate) – A single-qudit gate that follows two_qudit_gate in the building block. (Default: U3Gate())

  • single_qudit_gate_2 (Gate | None) – An alternate single-qudit gate to be used as the second single-qudit gate in the building block. If left as None, defaults to single_qudit_gate_1. (Default: None)

  • initial_layer_gate (Gate | None) – An alternate single-qudit gate that creates the initial layer. If left as None, defaults to single_qudit_gate_1. (Default: None)

Raises:

  • ValueError – If two_qudit_gate’s size is not 2, or if any of the single-qudit gates’ size is not 1.

  • ValueError – If single_qudit_gate_1’s radix does not match the radix of two_qudit_gate’s first qudit, or if single_qudit_gate_2’s radix does not match the radix of two_qudit_gate’s second qudit.

Methods

gen_initial_layer(target, data)

Generate the initial layer, see LayerGenerator for more.

gen_successors(circuit, data)

Generate the successors of a circuit node.