QuantumAnnealingParams ¶
Bases: BaseModel
Parameters for quantum annealing sampling on physical quantum processors (QPUs).
These parameters control the quantum annealing process on hardware devices like D-Wave quantum annealers, specifying how the annealing is performed, how many samples to collect, and various hardware-specific settings that affect solution quality and runtime.
Attributes:
| Name | Type | Description |
|---|---|---|
anneal_offsets |
list[float] | None
|
Per-qubit time offsets for the annealing path in normalized annealing time units. List of floats with length equal to the number of qubits. Default is None. |
anneal_schedule |
list[tuple[float, float]] | None
|
Custom schedule for the annealing process as a list of (time, s) pairs. Time is in normalized units [0, 1] and s is the annealing parameter [0, 1]. Default is None. |
annealing_time |
float | None
|
Duration of the annealing process in microseconds. Must be within the range supported by the QPU hardware. Default is None. |
auto_scale |
bool | None
|
Whether to automatically normalize the problem energy range to use the full range of h and J values supported by the hardware. Default is None. |
fast_anneal |
bool
|
Use accelerated annealing protocol for shorter annealing times. Default is False. |
flux_biases |
list[float] | None
|
Custom flux bias offsets for each qubit in units of Φ₀ (flux quantum). List length must equal the number of qubits. Default is None. |
flux_drift_compensation |
bool
|
Whether to compensate for drift in qubit flux over time using real-time calibration data. Default is True. |
h_gain_schedule |
list[tuple[float, float]] | None
|
Schedule for h-gain during annealing as a list of (time, gain) pairs. Time is in normalized units [0, 1]. Default is None. |
initial_state |
list[int] | None
|
Starting state for the annealing process. List of {-1, +1} values with length equal to the number of qubits. Default is None. |
max_answers |
int | None
|
Maximum number of unique answer states to return. Must be ≤ num_reads. Default is None. |
num_reads |
int
|
Number of annealing cycles to perform. Must be positive integer. Default is 1. |
programming_thermalization |
float | None
|
Wait time after programming the QPU in microseconds to allow the system to thermalize. Default is None. |
readout_thermalization |
float | None
|
Wait time after each anneal before reading results in microseconds. Default is None. |
reduce_intersample_correlation |
bool
|
Whether to add delay between samples to reduce correlation between consecutive measurements. Default is False. |
reinitialize_state |
bool | None
|
Whether to reset to a new initial state between reads to reduce correlation. Default is None. |