Additional Quantinuum Systems configuration¶
- class quantinuum_schemas.models.quantinuum_systems_noise.UserErrorParams(
- *,
- p1: float | None = None,
- p2: float | None = None,
- p_meas: float | Tuple[float, float] | None = None,
- p_init: float | None = None,
- p_crosstalk_meas: float | None = None,
- p_crosstalk_init: float | None = None,
- p1_emission_ratio: float | None = None,
- p2_emission_ratio: float | None = None,
- quadratic_dephasing_rate: float | None = None,
- linear_dephasing_rate: float | None = None,
- coherent_to_incoherent_factor: float | None = None,
- coherent_dephasing: bool | None = None,
- transport_dephasing: bool | None = None,
- idle_dephasing: bool | None = None,
- przz_a: float | None = None,
- przz_b: float | None = None,
- przz_c: float | None = None,
- przz_d: float | None = None,
- przz_power: float | None = None,
- scale: float | None = None,
- p1_scale: float | None = None,
- p2_scale: float | None = None,
- meas_scale: float | None = None,
- init_scale: float | None = None,
- memory_scale: float | None = None,
- emission_scale: float | None = None,
- crosstalk_scale: float | None = None,
- leakage_scale: float | None = None,
User provided error values that override machine values for emulation of Quantinuum Systems hardware.
See the Quantinuum Systems documentation for details of each parameter.
- Parameters:
p1 – Probability of a fault occurring during a 1-qubit gate.
p2 – Probability of a fault occurring during a 2-qubit gate.
p_meas – Probability of a bit flip being applied to a measurement. Either a float or a tuple of 2 floats. If it is a single float then that error rate is used to bitflip both 0 and 1 measurement results. If a tuple is supplied, the first element is the probability a bit flip is applied if a 0 result occurs during measurement while the second error rate if a 1 is measured.
p_init – Probability of a fault occurring during initialization of a qubit.
p_crosstalk_meas – Probability of a crosstalk measurement fault occurring.
p_crosstalk_init – Probability of a cross-talk fault occurring during initialization of a qubit.
p1_emission_ratio – Fraction of p1 that is spontaneous emission for a single qubit instead of asymmetric depolarizing noise.
p2_emission_ratio – Fraction of p2 that is spontaneous emission for a 1- qubit in a 2-qubit gate instead of asymmetric depolarizing noise.
quadratic_dephasing_rate – The frequency, f, in applying RZ(fd)during transport and idling.
linear_dephasing_rate – The probability of applying Z with p=rd where r is rate and d is duration. This models the memory error. Note both the quadratic and linear term can be applied in the same simulation.
coherent_to_incoherent_factor – A multiplier on the quadratic term when running stabilizer simulations to attempt to account for increases in error due to coherent effects in the circuit.
coherent_dephasing – A boolean value determining whether quadratic dephasing is applied.
transport_dephasing – A boolean affecting whether memory noise is applied during transport.
idle_dephasing – A boolean affecting if memory noise is applied due to qubit idling.
przz_a – Parameter a in parameterized angle scaling. See Emulator User Guide for details.
przz_b – Parameter b in parameterized angle scaling. See Emulator User Guide for details.
przz_c – Parameter c in parameterized angle scaling. See Emulator User Guide for details.
przz_d – Parameter d in parameterized angle scaling. See Emulator User Guide for details.
przz_power – Polynomial power in parameterized angle scaling. See Emulator User Guide for details.
scale – Scale all error rates in the model linearly.
p1_scale – Scale the probability of a fault occurring during a 1-qubit gate.
p2_scale – Scale the probability of a fault occurring during a 2-qubit gate.
meas_scale – Scale the probability of a fault occurring during measurement.
init_scale – Scale the probability of a fault occurring during initialization of a qubit.
memory_scale – Linearly scale the probability of dephasing causing a fault.
emission_scale – Scale the probability that a spontaneous emission event happens during a 1- or 2-qubit gate.
crosstalk_scale – Scale the probability that measurement or initialization crosstalk events get applied to qubits. During mid-circuit measurement and reset (initialization), crosstalk noise can occur that effectively measures other qubits in the trap or cause them to leak.
leakage_scale – Scale the probability that a leakage even happens during 1- or 2-qubit gates as well as during initialization or crosstalk; on the device half the time, spontaneous emission leads to a leakage event.