Implementing Purcell Filters in Metal

[SamarthH]

Please be as descriptive as possible, including: what is expected, why is this feature needed, what is the objective, etc.

What is the feature being requested?

• An implementation of Purcell filters that can be tuned to an arbitrary frequency for qubit + resonator systems
• The filter should be compatible with the transmission line design currently available in metal

What are use cases for this feature?

This makes the job of increasing lifetimes of qubits easier