uniqc.circuit_builder.random_qasm module#

Random OpenQASM 2.0 circuit generator.

This module provides functions for generating random quantum circuits in OpenQASM 2.0 format. It supports random gate selection, measurement generation, and circuit construction from opcode lists.

Key exports:

build_qasm_gate: Build a single QASM gate string. build_full_measurements: Generate measurement instructions for all qubits. build_measurements: Generate measurement instructions for specified qubits. random_qasm: Generate a complete random QASM program. build_qasm_from_opcodes: Convert a list of opcodes to QASM code.

uniqc.circuit_builder.random_qasm.build_full_measurements(n_qubits, qreg_name='q', creg_name='c')[source]#

Build a QASM string that measures all qubits in the given qreg to the given creg.

Parameters:

  • n_qubits (int) – number of qubits to measure

  • qreg_name (str) – name of the qreg to measure from

  • creg_name (str) – name of the creg to measure to

Returns:

a list of QASM strings that measure all qubits in the given qreg to the given creg.

Return type:

List[str]

uniqc.circuit_builder.random_qasm.build_measurements(measure_qbit_cbit_pairs, qreg_name='q', creg_name='c')[source]#

Build a QASM string that measures specified qubits to classical bits.

Parameters:

  • measure_qbit_cbit_pairs – Iterable of (qubit_index, cbit_index) tuples.

  • qreg_name (str) – name of the quantum register.

  • creg_name (str) – name of the classical register.

Returns:

a list of QASM measurement instructions.

Return type:

List[str]

uniqc.circuit_builder.random_qasm.build_qasm_from_opcodes(opcode_list, measure_qbit_cbit=None, qreg_name='q', creg_name='c')[source]#

Generate a QASM code from a list of opcodes.

Parameters:

  • opcode_list (List[Tuple[str, List[int], List[float]]]) – a list of tuples containing the gate name, qubits, and parameters

  • measure_qbit_cbit (List[Tuple[int, int]]) – a list of tuples containing the qubit and cbit to measure

  • qreg_name (str) – name of the qreg to measure from

  • creg_name (str) – name of the creg to measure to

Returns:

a QASM code

Return type:

str

uniqc.circuit_builder.random_qasm.build_qasm_gate(gate, qubits, params, qreg_name='q')[source]#

Build a QASM gate string with the given gate, qubits, and parameters.

Parameters:

  • gate (str) – name of the gate

  • qubits (List[int]) – list of qubits the gate acts on

  • params (List[float]) – list of parameters of the gate

Returns:

a QASM gate string

Return type:

str

uniqc.circuit_builder.random_qasm.random_qasm(n_qubits, n_gates, instruction_set={'c3x': {'params': 0, 'qubit': 4}, 'ccx': {'params': 0, 'qubit': 3}, 'crx': {'params': 1, 'qubit': 2}, 'cry': {'params': 1, 'qubit': 2}, 'crz': {'params': 1, 'qubit': 2}, 'cswap': {'params': 0, 'qubit': 3}, 'cu1': {'params': 1, 'qubit': 2}, 'cx': {'params': 0, 'qubit': 2}, 'cy': {'params': 0, 'qubit': 2}, 'cz': {'params': 0, 'qubit': 2}, 'h': {'params': 0, 'qubit': 1}, 'id': {'params': 0, 'qubit': 1}, 'rx': {'params': 1, 'qubit': 1}, 'rxx': {'params': 1, 'qubit': 2}, 'ry': {'params': 1, 'qubit': 1}, 'rz': {'params': 1, 'qubit': 1}, 'rzz': {'params': 1, 'qubit': 2}, 's': {'params': 0, 'qubit': 1}, 'sdg': {'params': 0, 'qubit': 1}, 'swap': {'params': 0, 'qubit': 2}, 'sx': {'params': 0, 'qubit': 1}, 'sxdg': {'params': 0, 'qubit': 1}, 't': {'params': 0, 'qubit': 1}, 'tdg': {'params': 0, 'qubit': 1}, 'u': {'params': 3, 'qubit': 1}, 'u1': {'params': 1, 'qubit': 1}, 'u2': {'params': 2, 'qubit': 1}, 'u3': {'params': 3, 'qubit': 1}, 'x': {'params': 0, 'qubit': 1}, 'y': {'params': 0, 'qubit': 1}, 'z': {'params': 0, 'qubit': 1}}, measurements=True)[source]#

Generate a random QASM code with n_qubits and n_gates from the given instruction set.

Parameters:

  • n_qubits (int) – number of qubits in the circuit

  • n_gates (int) – number of gates in the circuit

  • instruction_set (Dict) – list of valid QASM instructions

Returns:

a random QASM code

Return type:

str