ResilienceOptions
class ResilienceOptions(noise_amplifier=None, noise_factors=None, extrapolator=None)
Resilience options.
Parameters
- noise_factors (
Optional[Sequence[float]]) – An list of real valued noise factors that determine by what amount the circuits’ noise is amplified. Only applicable forresilience_level=2. Default:None, and (1, 3, 5) if resilience level is 2. - noise_amplifier (DEPRECATED) – A noise amplification strategy. Currently only
- resilience_level=2. ("LocalFoldingAmplifier" is supported Only applicable for) – Default: “LocalFoldingAmplifier”.
- extrapolator (
Optional[Literal[‘LinearExtrapolator’, ‘QuadraticExtrapolator’, ‘CubicExtrapolator’, ‘QuarticExtrapolator’]]) – An extrapolation strategy. One of"LinearExtrapolator","QuadraticExtrapolator","CubicExtrapolator","QuarticExtrapolator". Note that"CubicExtrapolator"and"QuarticExtrapolator"require more noise factors than the default. Only applicable forresilience_level=2. Default:None, andLinearExtrapolatorif resilience level is 2.
Attributes
extrapolator
Type: Literal['LinearExtrapolator', 'QuadraticExtrapolator', 'CubicExtrapolator', 'QuarticExtrapolator']
Default value: None
noise_amplifier
Type: Literal['LocalFoldingAmplifier']
Default value: None
noise_factors
Type: Sequence[float]
Default value: None
Methods
validate_resilience_options
static validate_resilience_options(resilience_options)
Validate that resilience options are legal. :raises ValueError: if any resilience option is not supported :raises ValueError: if noise_amplifier is not in NoiseAmplifierType. :raises ValueError: if extrapolator is not in ExtrapolatorType. :raises ValueError: if extrapolator == “QuarticExtrapolator” and number of noise_factors < 5. :raises ValueError: if extrapolator == “CubicExtrapolator” and number of noise_factors < 4.
Return type
None