Transmon

Model for a transmon.

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

class sequence.components.transmon.EmittingProtocol(owner: Node, name: str, tl: Timeline, transmon: Transmon, transducer: Transducer)

Protocol for emission of single microwave photon by transmon.

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

transmon

the transmon component

Type:

Transmon

transducer

the transducer component

Type:

Transducer

received_message(src: str, msg)

Receive classical message from another node.

class sequence.components.transmon.Transmon(owner: Node, name: str, timeline: Timeline, wavelengths: list[int], photon_counter: int, photons_quantum_state: list[tuple], efficiency: float = 1)

Class modeling a transmon qubit.

The Transmon class can be configured to emit microwave photons.

name

the name of the transmon

Type:

str

timeline

the simulation timeline

Type:

Timeline

owner

the entity that owns or aggregates the current component

Type:

Node

wavelengths

two wavelengths, one for microwave, and one for optics

Type:

list

photon_counter

photon counter

Type:

int

photongs_quantum_state

a list of quantum states

Type:

list

efficiency

the efficiency of the transmon

Type:

float

input_quantum_state

two qubit state for microwave and optical photon

Type:

np.array

photon0

microwave photon

Type:

Photon

photon1

optical photon

Type:

Photon

add_outputs(outputs: list)

Add outputs, i.e., receivers, of the transmon

generation()

Set tranmson quantum state and return a photon with some specifications

get(photon: Photon) None

Receive photon from the transducer

In the Direct Conversion, called when the receiver node’s transducer successfully down convert the photon to microwave In the Entanglement Swapping, called when the transducer at the end nodes fail to up convert the microwave into photon

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.