Devices - Quantum Devices Simulator

class netQuil.devices.Device

Base class for all source and target devices

__init__()

Initialize self. See help(type(self)) for accurate signature.

__weakref__

list of weak references to the object (if defined)

apply(program, qubits)

This function should be overwritten by children classes, and should include runtime code defining how child devices impact qubits

Parameters

• program (Pyquil<Program>) – program to manipulate

• qubits (List<int>) – list of qubits passing through device

get_results()

Prints device information about trial to console.

reset()

reset is called between trials and resets all properties.

class netQuil.devices.Fiber(length=0.0, attenuation_coefficient=-0.16, apply_error=True)

Bases: netQuil.devices.Device

__init__(length=0.0, attenuation_coefficient=-0.16, apply_error=True)

Simulation of fiber optics with given length and attenuation coefficient.

Parameters

• length (Float) – length of fiber optical cable in km

• attenuation_coefficient (Float) – coefficient determining likelihood of photon loss

• apply_error (Boolean) – True is device should apply error, otherwise, only returns time delay

apply(program, qubits)

Applies device’s error and returns time that photon took to pass through simulated device

Parameters

• program (Program) – program to be modified

• qubits (List<int>) – qubits being sent

Returns

time qubits took to travel through fiber

class netQuil.devices.Laser(pulse_length=1e-11, expected_photons=1.0, rotation_prob_variance=1.0, wavelength=1550, apply_error=True)

Bases: netQuil.devices.Device

__init__(pulse_length=1e-11, expected_photons=1.0, rotation_prob_variance=1.0, wavelength=1550, apply_error=True)

Simulation of laser at 1550nm wavelength. Laser produce photons according to poisson distribution, centered around expected_photons.

apply(program, qubits)

Applies laser effect to qubits :param Program program: global program :param List<int> qubits: list of qubits going through laser :return: time it took qubits to pass through device

get_results()

Prints device information about trial to console.

reset()

reset is called between trials and resets all properties.