Additional Quantinuum Systems configuration¶

class quantinuum_schemas.models.quantinuum_systems_noise.HeliosErrorParams( *, p_init: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, p_meas_0: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, p_meas_1: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, p1: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, p2: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, p1_emission_ratio: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, p2_emission_ratio: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, p_prep_leak_ratio: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, p1_seepage_prob: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, p2_seepage_prob: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, scale: Annotated[float, Ge(ge=0)] = 1.0, memory_scale: Annotated[float, Ge(ge=0)] = 1.0, init_scale: Annotated[float, Ge(ge=0)] = 1.0, meas_scale: Annotated[float, Ge(ge=0)] = 1.0, p1_scale: Annotated[float, Ge(ge=0)] = 1.0, p2_scale: Annotated[float, Ge(ge=0)] = 1.0, emission_scale: Annotated[float, Ge(ge=0)] = 1.0, przz_a: float | None = None, przz_b: float | None = None, przz_c: float | None = None, przz_d: float | None = None, przz_power: float = 1.0, p_crosstalk_meas: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, p_crosstalk_init: Annotated[float, Ge(ge=0.0), Le(le=1.0)] = 0.0, coherent_dephasing: bool = True, coherent_to_incoherent_factor: float = 1.5, leak2depolar: bool = False, p_meas_crosstalk_scale: float = 1.0, p_prep_crosstalk_scale: float = 1.0, crosstalk_per_gate: bool | None = None, linear_dephasing_rate: Annotated[float, Ge(ge=0)] = 0.0, quadratic_dephasing_rate: Annotated[float, Ge(ge=0)] = 0.0, p2_idle: Annotated[float, Ge(ge=0)] = 0.0, )[source]¶

Error model configuration for emulation of Quantinuum’s Helios System.

Parameters:

p_init – Probability of error during preparation. Alias: p_prep.
p_meas_0 – Probability of flipping 0 to 1 during measurement.
p_meas_1 – Probability of flipping 1 to 0 during measurement.
p1 – Probability of error after single-qubit gates.
p2 – Probability of error after two-qubit gates.
p1_emission_ratio – Emission ratio for single-qubit gates.
p2_emission_ratio – The proportion of two-qubit errors that are emission faults.
p_prep_leak_ratio – Preparation leakage ratio.
p1_seepage_prob – Probability of a leaked qubit being seeped (released from leakage) for single-qubit.
p2_seepage_prob – Probability of a leaked qubit being seeped (released from leakage) for two-qubit.
scale – Overall scaling factor.
memory_scale – Memory scaling factor.
init_scale – Initial scaling factor. Alias: prep_scale.
meas_scale – Measurement scaling factor.
p1_scale – Single-qubit gate scaling factor.
p2_scale – Two-qubit gate scaling factor.
emission_scale – Emission scaling factor.
przz_a – Scaling parameters for RZZ gate error rate - coefficient a.
przz_b – Scaling parameters for RZZ gate error rate - coefficient b.
przz_c – Scaling parameters for RZZ gate error rate - coefficient c.
przz_d – Scaling parameters for RZZ gate error rate - coefficient d.
przz_power – Power parameter for RZZ error scaling.
p_crosstalk_meas – Probability of crosstalk during measurement operations. Alias: p_meas_crosstalk.
p_crosstalk_init – Probability of crosstalk during initialization operations. Alias: p_prep_crosstalk.
coherent_dephasing – Whether to include coherent dephasing.
coherent_to_incoherent_factor – Coherent to incoherent conversion factor.
leak2depolar – Replace leakage with general noise.
p_meas_crosstalk_scale – Measurement crosstalk rescale factor.
p_prep_crosstalk_scale – Preparation crosstalk rescale factor.
crosstalk_per_gate – Whether to apply crosstalk on a per-gate basis.
linear_dephasing_rate – Linear rate for idle noise. Alias: p_idle_linear_rate.
quadratic_dephasing_rate – Quadratic rate for idle noise. Alias: p_idle_quadratic_rate.
p2_idle – Stochastic idle noise after each two-qubit gate.

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.

class quantinuum_schemas.models.backend_config.QuantinuumCompilerOptions(

**extra_data: Any,

)[source]¶

Class for Quantinuum compiler options.

Intentionally allows extra unknown flags to be defined.

class quantinuum_schemas.models.backend_config.QuantinuumOptions(

**extra_data: Any,

)[source]¶

Class for Quantinuum additional options.

Intentionally allows extra unknown flags to be defined.