Add noise level to the PEC calibration log

[kozhukalov]

Description

Now it is clear from the log table why
some PEC strategies are better that others.

Fixes #2013

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License

• I license this contribution under the terms of the GNU GPL, version 3 and grant Unitary Fund the right to provide additional permissions as described in section 7 of the GNU GPL, version 3.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (696da9e) 98.30% compared to head (ccbc64d) 98.30%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2045   +/-   ##
=======================================
  Coverage   98.30%   98.30%           
=======================================
  Files          87       87           
  Lines        4125     4125           
=======================================
  Hits         4055     4055           
  Misses         70       70           

Files	Coverage Δ
mitiq/calibration/calibrator.py	98.61% <ø> (ø)

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[Misty-W]

@kozhukalov thanks for the PR! Can you show the output printed from the new logs?

[kozhukalov]

After we merged this #2038 and with this change the output looks like

PEC results:
┌───────────────┬────────────────┬──────────┬───────────────┬──────────────┬──────────────────────────┬───────────────┬───────────────────┐
│ performance   │ circuit type   │ method   │   noise level │   noise bias │ noise representation     │   noisy error │   mitigated error │
├───────────────┼────────────────┼──────────┼───────────────┼──────────────┼──────────────────────────┼───────────────┼───────────────────┤
│ ✔             │ rb             │ PEC      │         0.001 │            0 │ local_depolarizing_noise │        0.0834 │        0.0300098  │
├───────────────┼────────────────┼──────────┼───────────────┼──────────────┼──────────────────────────┼───────────────┼───────────────────┤
│ ✔             │ ghz            │ PEC      │         0.01  │            0 │ local_depolarizing_noise │        0.0155 │        0.00178515 │
├───────────────┼────────────────┼──────────┼───────────────┼──────────────┼──────────────────────────┼───────────────┼───────────────────┤
│ ✔             │ ghz            │ PEC      │         0.001 │            0 │ local_depolarizing_noise │        0.0155 │        0.0114373  │
├───────────────┼────────────────┼──────────┼───────────────┼──────────────┼──────────────────────────┼───────────────┼───────────────────┤
│ ✘             │ rb             │ PEC      │         0.01  │            0 │ local_depolarizing_noise │        0.0834 │        2.79663    │
└───────────────┴────────────────┴──────────┴───────────────┴──────────────┴──────────────────────────┴───────────────┴───────────────────┘

[natestemen]

Apologies for the slow review. This is great to have.