Quantum Computing Parameters¶

Each quantum computer has its own unique parameters, and some metrics may vary over time or due to fluctuations during calibration . Understanding quantum computer parameters can help to optimize computational results.
The cloud platform offers various channels for viewing/querying quantum computer parameters.

Direct Page Browsing¶

By navigating to Home -> Quantum Lab -> Quantum Computer Summary, you can access the status summary page for all quantum computers.
On this page, you can open a quantum computer's parameter page by clicking on its respective computer card, and you can directly view all the provided parameters through the tabs on the page.
This mode supports anonymous browsing but does not support data downloads.

Manual Page Download¶

First, log in to the website from the homepage, and then follow the process mentioned above to reach the quantum computer parameter page, where there is a download button.
This mode only supports downloading all the parameters of the quantum computers that are currently available for querying on the page.

SDK Command Download¶

In the user code programming environment, after logging into the website using the SDK, you can use 'download_config' to download the currently selected quantum computer.
download_config(read_time=None, down_file=True)

from ezQgd import * 
account = Account(login_key='opecT+SO+QFjLXREUU2f8paSJNtTytPPV8Dbbd2T8Zg=', machine_name='gd_qc1')
res=account.download_config()

The 'read_time' parameter is used to retrieve quantum computer parameters for a specific time. The time format should be 'YYYY-MM-DD HH:MM:SS' and should be of type 'str'. If there are no experiment records for the specified time, the closest available parameters to that time will be provided. The parameter's update time can be found within the obtained parameters.

By default, this function will assist users in saving a parameter file in the current working directory. If you don't need to save the file and simply intend to use the parameters directly within your program, such as for real-time calculations or readout correction, you can pass 'down_file=None' as an argument.

Parameter File Format¶

See the FAQ section for more details.