el-loom-api-client 0.1.1

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Entropica Labs Loom API Client

A frontend API for generating QEC Loom Experiments. Use of this client requires a valid API token and API URL.

If you would like access to the Loom APIs, get in touch with us at Entropica Labs.

Creating a Client

To create a client to interact with the Loom APIs, you can use the LoomClient class. This class reads the configuration required to establish successful connections from (in order of precedence): inline constructor arguments, environment variables, the configuration file located in the user's home folder at ~/.loom/config.json. There are no default values for the configuration options, so you must provide them in one of the ways described below.

Using a Configuration File [RECOMMENDED] (search path: ~/.loom/config.json)

{
    "api_url": "https://api.example.com",
    "api_token": "**********"
}

from el_loom_api_client import LoomClient

# Create client (will read from configuration file, if it exists)
client = LoomClient()

Using Environment Variables

export LOOM_API_URL="https://api.example.com"
export LOOM_API_TOKEN="**********"

from el_loom_api_client import LoomClient

# Create client (will use environment variables)
client = LoomClient()

Using the constructor directly [NOT RECOMMENDED]

Alternatively you can pass the configuration options directly to the client (this will override any environment variables or configuration file):

from el_loom_api_client import LoomClient

# Create client with explicit configuration. (WARNING: This is NOT RECOMMENDED for code that must be committed to a repository or shared, as this will expose your API token)
client = LoomClient(api_url="https://api.example.com", api_token="**********")

Using the Client

In order to use the client, you should have already obtained a valid API token and the API URL. These instructions assume you have already done so.

Create the client configuration file

You can create the configuration file in your user's home folder with the following content:

MacOS/Linux:

mkdir -p ~/.loom && echo '{"api_url": "https://api.example.com", "api_token": "**********"}' > ~/.loom/config.json

Windows:

New-Item -Path "$HOME\.loom" -ItemType Directory -Force
Set-Content -Path "$HOME\.loom\config.json" -Value '{"api_url": "https://api.example.com", "api_token": "**********"}'

Build a QEC experiment

Using the provided Models and the client, you can build a QEC experiment. The following example shows how to create a simple QEC memory experiment using the MemoryExperiment model and submit it to the Loom API.

from el_loom_api_client import LoomClient
from el_loom_api_client.models import QECExperiment, Qubit, ErrorCorrectionCode

# Create client
client = LoomClient()

# Build the experiment model
experiment = MemoryExperiment(
    qec_code=Code("rotatedsurfacecode"),
    distance=3,
    num_rounds=[3, 5, 7],
    memory_type="Z",
    decoder=Decoder("Pymatching"),
    noise_parameters=[NoiseParameters(
        depolarizing=0.01, measurement=0.01, reset=0.01
    ), NoiseParameters(
        depolarizing=0.05, measurement=0.05, reset=0.05
    )],
    gate_durations={"x": 3e-8, "cx": 2e-7},
)

# Submit the experiment to the Loom API
run_id = client.experiment_run(experiment)

# Wait for the experiment result (asynchronous)
result = await client.get_result_async(run_id)

# Or wait for the experiment result (blocking)
result = client.get_result_sync(run_id)

# Print the result
print(result)