Transducer

Model for a transducer.

See https://arxiv.org/abs/2411.11377, Simulation of Quantum Transduction Strategies for Quantum Networks

class sequence.components.transducer.DownConversionProtocol(owner: Node, name: str, tl: Timeline, transducer: Transducer)

Protocol for Down-conversion of an input optical photon into an output microwave photon.

owner

the owner of this protocol, the protocol runs on the owner

Type:: Node

name

the name of the protocol

Type:: str

tl

the simulation timeline

Type:: Timeline

transducer

the transducer component

Type:: Transducer

convert(photon: Photon) → None: Receives photons from the transducer

received_message(src: str, msg): Receive classical message from another node.

start() → None

start the protocol

Parameters:: photon (Photon) – the photon received at the transducer from the quantum channel

class sequence.components.transducer.Transducer(owner: Node, name: str, timeline: Timeline, efficiency: float = 1)

Class modeling a transducer.

A transducer can operate in two modes: up-conversion and down-conversion. In up-conversion it can convert microwave photons to optical photons. In down-conversion it can convert optical photons to microwave photons.

owner

the entity that owns or aggregates the current component

Type:: Node

name

the name of the transducer

Type:: str

timeline

the simulation timeline

Type:: Timeline

efficiency

the efficiency of the transducer

Type:: float

photon_counter

photon counter

Type:: int

up_conversion_protocol

up convert microwave to photon

Type:: UpConversionProtocol

down_conversion_protocol

down convert photon to microwave

Type:: DownConversionProtocol

add_outputs(outputs: list): Add outputs, i.e., receivers

get(photon) → None: The optical photon reaches the destination

init()

Method to initialize entity (abstract).

Entity init methods are invoked for all timeline entities when the timeline is initialized. This method can be used to perform any necessary functions before simulation.

receive_photon_from_transmon(photon: Photon) → None: Receive a photon from the transmon and call the Up_Conversion protocol

class sequence.components.transducer.UpConversionProtocol(owner: Node, name: str, tl: Timeline, transducer: Transducer)

Protocol for Up-conversion of an input microwave photon into an output optical photon.

owner

the owner of this protocol, the protocol runs on the owner

Type:: Node

name

the name of the protocol

Type:: str

tl

the simulation timeline

Type:: Timeline

transducer

the transducer component

Type:: Transducer

convert(photon: Photon) → None

receives

Parameters:: photon (Photon) – photon from arrived at the transducer from the transmon

received_message(src: str, msg): Receive classical message from another node.

start() → None: start the protocol

sequence.components.transducer.get_conversion_matrix(efficiency: float) → Qobj

Parameters:: efficiency (float) – transducer efficiency