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Protocols list #1012

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Oct 17, 2024
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Protocols list #1012

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docs: upload list of future protocols
Edoardo-Pedicillo Oct 16, 2024
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fix: typo in README
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6 changes: 5 additions & 1 deletion README.md
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Expand Up @@ -81,5 +81,9 @@ Feel free to check
[![DOI](https://zenodo.org/badge/511836317.svg)](https://zenodo.org/badge/latestdoi/511836317)



If you use the package please refer to [the documentation](https://qibo.science/qibo/stable/appendix/citing-qibo.html#publications) for citation instructions

## Missing protocols

A non-exhaustive list of possible protocols to be implemented in Qibocal is collected
[here](doc/dev/README.md).
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# Qibocal Roadmap

## Protocols
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Are you planning to include other sections in the roadmap? (other than protocols)

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In the beginning, I was planning to add a Software section, but maybe if the issues are enough, I will remove the title.

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@alecandido alecandido Oct 17, 2024 •
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Of course, we could even try to schedule some more relevant software feature for the future.

However, software-wise we're really moving on a need-based approach (mainly because of the lack of person power), so I'd not be so systematic in this respect, since it may end up being completely useless...

### High Priority
#### Single qubit

- Rabi and flipping to calibrate pi/2 rotations (https://web.physics.ucsb.edu/~martinisgroup/theses/Chen2018.pdf par. 5.9)
- Kernels for integration
- Drag with detuning (https://arxiv.org/pdf/1904.06560)
- Cross-entropy benchmarking
- SNR in spectroscopies and SNR in the IQ plane
https://dsp.stackexchange.com/questions/24372/what-is-the-connection-between-analog-signal-to-noise-ratio-and-signal-to-noise.
https://arxiv.org/pdf/2106.06173.pdf
- Improve readout amplitude optimization with the outliers probability
(https://escholarship.org/content/qt0g29b4p0/qt0g29b4p0.pdf?t=prk0gj)
- Cryoscope (https://arxiv.org/pdf/1907.04818, https://github.com/qua-platform/qua-libs/blob/main/Quantum-Control-Applications/Superconducting/Single-Flux-Tunable-Transmon/Use%20Case%201%20-%20Paraoanu%20Lab%20-%20Cryoscope/readme.md)

#### Two qubits

- Cross resonance gates (https://journals.aps.org/prb/abstract/10.1103/PhysRevB.81.134507)
- SNZ / Martini Ansatz (https://arxiv.org/pdf/2008.07411 https://arxiv.org/pdf/1402.5467)
- Improve and test coupler routines
- Measure ZZ coupling in couplers (flux amplitude vs coupling) (Manenti Motta, par. 14.8.4)
- Improve and test iSWAP implementation

### Low Priority
#### Single Qubit

- Calibrate the other qubit states
- Carr-Purcell-Meiboom_Gill sequence
- Explore cosine pulse as X pulse (https://web.physics.ucsb.edu/~martinisgroup/theses/Chen2018.pdf par. 5.4)
- Active reset
- Measurement tomography https://arxiv.org/pdf/1310.6448.pdf
- XY-Z timing
(https://escholarship.org/content/qt0g29b4p0/qt0g29b4p0.pdf?t=prk0gj par. 5.10)
- Optimal control with randomize benchmarking (https://arxiv.org/pdf/1403.0035)
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@andrea-pasquale andrea-pasquale Oct 17, 2024 •
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Perhaps this one (Optimal control with rb) can be moved to high priority given that we are more or less working on it already?

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@alecandido alecandido Oct 17, 2024 •
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Agreed.

Though, I'm not sure I would classify that as a protocol at all...
Instead, I would build as a protocols' composition with scripts. And, as part of this effort, I could finally work out a way to meaningfully distribute even this kind of pre-compiled applications with Qibocal, or in parallel to it (but within the repo).

In any case, this is just an opinion, and up for discussion.

(there will be an acquisition, a fit, a report, and an update generated - but the acquisition and the fit won't be really two separate phases, that's why I'd not make it a protocol itself)

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Yes, but at the moment I would like to collect all the missing protocols in the file, so both routines and scripts, since at the moment they will be collected in this repo.

- Quantum volume
- Gate Set Tomography
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Speaking of MM. Should we also add other possible implementations of Z rotations? (14.6.4)

As low priority, of course.

Not much because they may be useful as gates, but just because they are possible, and they may be used as further checks on the qubit, since they are playing with the same parameters.

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I would peronally avoid them since they don't add information, maybe the only one to take into consideration is the one using the AC Stark effect to study the phenomenon itself.

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To be fair, that's the one I mostly had in mind...
(the virtual Z we already had, and the composition of other X and Y gates requires a calibration of the Y for arbitrary angles...)

Maybe, the other one I would have considered is fluxing the qubit to measure the Z rotation. As a (redundant?) way to show control over the flux.

In any case, if interesting, we could even reconsider at a later stage.

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Is there a reason to completely exclude the process tomography?

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No, just forgotten