bloqade.qasm2.dialects.noise.model.MoveNoiseModelABC

← Module overview

classMoveNoiseModelABC¶source

bloqade.qasm2.dialects.noise.model.MoveNoiseModelABC

Bases: abc.ABC

Abstract base class for noise based on atom movement.

Signature

class MoveNoiseModelABC(*, local_px: float = 0.0004102, local_py: float = 0.0004102, local_pz: float = 0.0004112, local_loss_prob: float = 0.0, local_unaddressed_px: float = 2e-07, local_unaddressed_py: float = 2e-07, local_unaddressed_pz: float = 1.2e-06, local_unaddressed_loss_prob: float = 0.0, global_px: float = 6.5e-05, global_py: float = 6.5e-05, global_pz: float = 6.5e-05, global_loss_prob: float = 0.0, cz_paired_gate_px: float = 0.0006549, cz_paired_gate_py: float = 0.0006549, cz_paired_gate_pz: float = 0.003184, cz_gate_loss_prob: float = 0.0, cz_unpaired_gate_px: float = 0.0005149, cz_unpaired_gate_py: float = 0.0005149, cz_unpaired_gate_pz: float = 0.002185, cz_unpaired_loss_prob: float = 0.0, mover_px: float = 0.000806, mover_py: float = 0.000806, mover_pz: float = 0.002458, move_loss_prob: float = 0.0, sitter_px: float = 0.0003066, sitter_py: float = 0.0003066, sitter_pz: float = 0.0004639, sit_loss_prob: float = 0.0)

Public import paths

• from bloqade.qasm2.noise import MoveNoiseModelABC
• from bloqade.qasm2.dialects.noise import MoveNoiseModelABC
• from bloqade.cirq_utils.noise.model import MoveNoiseModelABC

This class defines the interface for a noise model. The gate noise is calculated from the parameters provided in this dataclass which can be updated when inheriting from this class. The move error is calculated by implementing the parallel_cz_errors method which takes a set of ctrl and qarg qubits and returns a noise model for all the qubits. The noise model is a dictionary with the keys being the error rates for the qubits and the values being the list of qubits that the error rate applies to.

Once implemented the class can be used with the NoisePass to analyze a circuit and apply the noise model to the circuit.

NOTE: This model is not guaranteed to be supported long-term in bloqade. We will be moving towards a more general approach to noise modeling in the future.

Parameters

Name	Type	Default	Description
local_px	float	0.0004102
local_py	float	0.0004102
local_pz	float	0.0004112
local_loss_prob	float	0.0
local_unaddressed_px	float	2e-07
local_unaddressed_py	float	2e-07
local_unaddressed_pz	float	1.2e-06
local_unaddressed_loss_prob	float	0.0
global_px	float	6.5e-05
global_py	float	6.5e-05
global_pz	float	6.5e-05
global_loss_prob	float	0.0
cz_paired_gate_px	float	0.0006549
cz_paired_gate_py	float	0.0006549
cz_paired_gate_pz	float	0.003184
cz_gate_loss_prob	float	0.0
cz_unpaired_gate_px	float	0.0005149
cz_unpaired_gate_py	float	0.0005149
cz_unpaired_gate_pz	float	0.002185
cz_unpaired_loss_prob	float	0.0
mover_px	float	0.000806
mover_py	float	0.000806
mover_pz	float	0.002458
move_loss_prob	float	0.0
sitter_px	float	0.0003066
sitter_py	float	0.0003066
sitter_pz	float	0.0004639
sit_loss_prob	float	0.0

Attributes

Name	Type	Default	Description
local_px	float	field(default=0.0004102, kw_only=True)	The error probability for a Pauli-X error during a local single qubit gate operation.
local_py	float	field(default=0.0004102, kw_only=True)	The error probability for a Pauli-Y error during a local single qubit gate operation.
local_pz	float	field(default=0.0004112, kw_only=True)	The error probability for a Pauli-Z error during a local single qubit gate operation.
local_loss_prob	float	field(default=0.0, kw_only=True)	The error probability for a loss during a local single qubit gate operation.
local_unaddressed_px	float	field(default=2e-07, kw_only=True)	The error probability for a Pauli-X error during a local single qubit gate operation when the qubit is not addressed.
local_unaddressed_py	float	field(default=2e-07, kw_only=True)	The error probability for a Pauli-Y error during a local single qubit gate operation when the qubit is not addressed.
local_unaddressed_pz	float	field(default=1.2e-06, kw_only=True)	The error probability for a Pauli-Z error during a local single qubit gate operation when the qubit is not addressed.
local_unaddressed_loss_prob	float	field(default=0.0, kw_only=True)	The error probability for a loss during a local single qubit gate operation when the qubit is not addressed.
global_px	float	field(default=6.5e-05, kw_only=True)	The error probability for a Pauli-X error during a global single qubit gate operation.
global_py	float	field(default=6.5e-05, kw_only=True)	The error probability for a Pauli-Y error during a global single qubit gate operation.
global_pz	float	field(default=6.5e-05, kw_only=True)	The error probability for a Pauli-Z error during a global single qubit gate operation.
global_loss_prob	float	field(default=0.0, kw_only=True)	The error probability for a loss during a global single qubit gate operation.
cz_paired_gate_px	float	field(default=0.0006549, kw_only=True)	The error probability for a Pauli-X error during CZ gate operation when two qubits are within blockade radius.
cz_paired_gate_py	float	field(default=0.0006549, kw_only=True)	The error probability for a Pauli-Y error during CZ gate operation when two qubits are within blockade radius.
cz_paired_gate_pz	float	field(default=0.003184, kw_only=True)	The error probability for a Pauli-Z error during CZ gate operation when two qubits are within blockade radius.
cz_gate_loss_prob	float	field(default=0.0, kw_only=True)	The error probability for a loss during CZ gate operation when two qubits are within blockade radius.
cz_unpaired_gate_px	float	field(default=0.0005149, kw_only=True)	The error probability for Pauli-X error during CZ gate operation when another qubit is not within blockade radius.
cz_unpaired_gate_py	float	field(default=0.0005149, kw_only=True)	The error probability for Pauli-Y error during CZ gate operation when another qubit is not within blockade radius.
cz_unpaired_gate_pz	float	field(default=0.002185, kw_only=True)	The error probability for Pauli-Z error during CZ gate operation when another qubit is not within blockade radius.
cz_unpaired_loss_prob	float	field(default=0.0, kw_only=True)	The error probability for a loss during CZ gate operation when another qubit is not within blockade radius.
mover_px	float	field(default=0.000806, kw_only=True)	Probability of X error occurring on a moving qubit during a move operation
mover_py	float	field(default=0.000806, kw_only=True)	Probability of Y error occurring on a moving qubit during a move operation
mover_pz	float	field(default=0.002458, kw_only=True)	Probability of Z error occurring on a moving qubit during a move operation
move_loss_prob	float	field(default=0.0, kw_only=True)	Probability of loss occurring on a moving qubit during a move operation
sitter_px	float	field(default=0.0003066, kw_only=True)	Probability of X error occurring on a stationary qubit during a move operation
sitter_py	float	field(default=0.0003066, kw_only=True)	Probability of Y error occurring on a stationary qubit during a move operation
sitter_pz	float	field(default=0.0004639, kw_only=True)	Probability of Z error occurring on a stationary qubit during a move operation
sit_loss_prob	float	field(default=0.0, kw_only=True)	Probability of loss occurring on a stationary qubit during a move operation

propertycz_paired_errors¶source

bloqade.qasm2.dialects.noise.model.MoveNoiseModelABC.cz_paired_errors

cz_paired_errors: tuple[float, float, float, float]

Returns the error rates for a CZ gate.

source

propertycz_unpaired_errors¶source

bloqade.qasm2.dialects.noise.model.MoveNoiseModelABC.cz_unpaired_errors

cz_unpaired_errors: tuple[float, float, float, float]

Returns the error rates for a CZ gate.

source

propertylocal_errors¶source

bloqade.qasm2.dialects.noise.model.MoveNoiseModelABC.local_errors

local_errors: tuple[float, float, float, float]

Returns the error rates for a local single qubit gate.

source

propertylocal_unaddressed_errors¶source

bloqade.qasm2.dialects.noise.model.MoveNoiseModelABC.local_unaddressed_errors

local_unaddressed_errors: tuple[float, float, float, float]

Returns the error rates for a local single qubit gate.

source

propertyglobal_errors¶source

bloqade.qasm2.dialects.noise.model.MoveNoiseModelABC.global_errors

global_errors: tuple[float, float, float, float]

Returns the error rates for a global single qubit gate.

source

propertysitter_errors¶source

bloqade.qasm2.dialects.noise.model.MoveNoiseModelABC.sitter_errors

sitter_errors: tuple[float, float, float, float]

Returns the error rates for a move operation.

source

methodparallel_cz_errors¶source

bloqade.qasm2.dialects.noise.model.MoveNoiseModelABC.parallel_cz_errors

Signature

def parallel_cz_errors(ctrls: Sequence[int], qargs: Sequence[int], rest: Sequence[int]) -> dict[tuple[float, float, float, float], list[int]]

Takes a set of ctrls and qargs and returns a noise model for all qubits.

Parameters

Name	Type	Description
ctrls	Sequence[int]
qargs	Sequence[int]
rest	Sequence[int]

Returns

dict[tuple[float, float, float, float], list[int]]

source

methodjoin_binary_probs¶source

bloqade.qasm2.dialects.noise.model.MoveNoiseModelABC.join_binary_probs

def join_binary_probs(p1: float, *args: float = ()) -> float

Merge the probabilities of an event happening if the event can only happen once.

For example, finding the effective probability of losing an atom from multiple sources, since a qubit can only be lost once. This is done by using the formula:

p = p1 * (1 - p2) + p2 * (1 - p1)

applied recursively to all the probabilities in the list.

Parameters

Name	Type	Default	Description
p1	float	required	The probability of the event happening.
*args	float	()

Returns

floatfloat: The effective probability of the event happening.

source