Ramsey ZZ protocol

[andrea-pasquale]

Protocol to compute ZZ strength between two qubits. Some preliminary results available here http://login.qrccluster.com:9000/qwQY9gVKRyiA14v2HEhMuw==/ They confirm that ZZ seems to be an issue at least for qw11q

Example runcard:

actions:

  - id: ramsey
    operation: ramsey_zz
    targets: [2]
    parameters:
      delay_between_pulses_start: 10
      delay_between_pulses_end: 2_000
      delay_between_pulses_step: 50
      detuning: 500_000
      target_qubit: 3
      nshots: 1024

• [ ] Simplify code and remove duplication

Checklist:

• [ ] Reviewers confirm new code works as expected.
• [ ] Tests are passing.
• [ ] Coverage does not decrease.
• [ ] Documentation is updated.
• [ ] Compatibility with Qibo modules (Please edit this section if the current pull request is not compatible with the following branches).
  • [ ] Qibo: master
  • [ ] Qibolab: main
  • [ ] Qibolab_platforms_qrc: main