Snapshot¶

class Snapshot(label, snapshot_type='statevector', num_qubits=0, num_clbits=0, params=None)[source]¶

Bases: qiskit.circuit.instruction.Instruction

Simulator snapshot instruction.

Create new snapshot instruction.

Parameters

label (str) – the snapshot label for result data.
snapshot_type (str) – the type of the snapshot.
num_qubits (int) – the number of qubits for the snapshot type [Default: 0].
num_clbits (int) – the number of classical bits for the snapshot type [Default: 0].
params (list or None) – the parameters for snapshot_type [Default: None].

Raises

ExtensionError – if snapshot label is invalid.

Methods

`add_decomposition`	Add a decomposition of the instruction to the SessionEquivalenceLibrary.
`assemble`	Assemble a QasmQobjInstruction
`broadcast_arguments`	Validation of the arguments.
`c_if`	Add classical condition on register or cbit classical and value val.
`copy`	Copy of the instruction.
`define_snapshot_register`	Defines qubits to snapshot for all snapshot methods
`inverse`	Special case.
`is_parameterized`	Return True .IFF.
`mirror`	DEPRECATED: use instruction.reverse_ops().
`qasm`	Return a default OpenQASM string for the instruction.
`repeat`	Creates an instruction with gate repeated n amount of times.
`reverse_ops`	For a composite instruction, reverse the order of sub-instructions.
`soft_compare`	Soft comparison between gates.
`validate_parameter`	Instruction parameters has no validation or normalization.

Attributes

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