Connecting to SHFQA by Zurich Instruments in Python

Instrument Card

The Zurich Instruments SHFQA Quantum Analyzer integrates in a single instrument a full real-time readout setup for up to 64 superconducting and spin qubits. The SHFQA operates in a frequency range from 0.5 to 8.5 GHz with a clean analysis bandwidth of 1 GHz and without the need for mixer calibration. Each of its 2 or 4 readout channels can analyze up to 16 qubits, 8 qutrits or 5 ququads

Device Specification: here

Manufacturer card: ZURICH INSTRUMENTS

Zurich Instruments Ltd. is a privately owned company developing and selling advanced test and measurement instruments equipped with software for dynamic signal analysis.

• Headquarters: Switzerland
• Yearly Revenue (millions, USD): 38
• Vendor Website: here

Connect to the SHFQA in Python

Read our guide for turning Python scripts into Flojoy nodes.

Flojoy

PROTOCOLS > SCPI

📄 IDN

Query a device's identity through the universal *IDN? SCPI command.

📄 MEASURE VOLTAGE

Query an instrument's measured output voltage, such as a DMM or power supply.

📄 SCPI WRITE

Write a SCPI command to a connected bench-top instrument and return the result.

QCodes

Here is an example Python script that uses Qcodes to connect to a SHFQA Quantum Analyzer:

import qcodes as qc
from qcodes.instrument_drivers.zhinst import SHFQA

# Connect to the SHFQA Quantum Analyzer
shfqa = SHFQA("shfqa", "dev1234")

# Print the available QA channels
print(shfqa.qachannels())

# Configure the first QA channel
channel = shfqa.qachannels[0]
channel.configure_channel(
    input_range=0,
    output_range=0,
    center_frequency=5e9,
    mode="spectroscopy"
)

# Run the spectroscopy measurement
channel.spectroscopy.run()

# Wait for the measurement to finish
channel.spectroscopy.wait_done()

# Read the measurement data
data = channel.spectroscopy.read()

# Print the measurement data
print(data)

# Disconnect from the SHFQA Quantum Analyzer
shfqa.close()

Note: Replace "dev1234" with the actual serial number of your SHFQA Quantum Analyzer.