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qiskit-advocate / qamp-fall-21

Qiskit advocate mentorship program (QAMP) fall 21 cohort (Sep - Dec 2021)
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Working with Higher Energy States using builder notation of Qiskit Pulse #45

Open born-2learn opened 2 years ago

born-2learn commented 2 years ago

Description

The qiskit-textbook chapter on "Accessing Higher Energy States"(6.2) uses an older version of qiskit-pulse syntax. This project proposes an upgrade to this chapter using the latest builder syntax of Qiskit Pulse. The project will be an extension of the pulse syntax upgrade that happened last year for experiment 6.1. We might be able to add some new experiments that demonstrate the power of the builder syntax that make use of the |2> state.

Mentors:

Naoki Kanazawa (@nkanazawa1989), core developer of Qiskit Pulse, Kumezawa

Participant

Myself (Syed Farhan Ahmad)

Number of participants

1

Deliverable

An upgraded qiskit-textbook chapter on "Accessing Higher Energy States" using the builder notation of Qiskit Pulse

HuangJunye commented 2 years ago

@nkanazawa1989 @kUmezawa Can you please comment in the issue so that I can assign you?

nkanazawa1989 commented 2 years ago

Sure

kUmezawa commented 2 years ago

Sure!

HuangJunye commented 2 years ago

@born-2learn Can you please upload your presentation here by the end of today? Thank you!

born-2learn commented 2 years ago

@HuangJunye Sure, let me add it by EOD EST, thanks!

born-2learn commented 2 years ago

[@HuangJunye ]QAMP Checkpoint 1: Progress report Issue #45 Higher Energy States.pdf

born-2learn commented 2 years ago

[@HuangJunye ] QAMP Checkpoint 2 : Progress (@nkanazawa1989 @kUmezawa )

The work done since checkpoint 1 has rather been theoretical. I've gotten to understand & appreciate the Rabi oscillations and the IQ complex vector output that we obtain once the experiments are run. In my earlier work, the sideband modulated pulse had been gotten rid of by using frequency shift commands from the new 'frequency context' structures of the pulse builder notation. This time, I've had chance to understand the sideband modulation techniques, how they benefitted us in the past and how programming constructs can be used to get rid of hardware level operations.

The multi-photon test for a direct transition from 0->2 has been explored, compared to 2 transitions that are currently being perform 0->1 and 1->2 to reach the |2> state. We are also in discussions to test the transition from 2->3 and observe the H-state. Once done, the challenge would be to design a classifier (in this case, to tune the Linear Discrimant Analyser) to classify 4 different states with high efficiency.

I'm happy to share that I presented my QAMP-Fall project and checkpoint 1 report at the IEEE Quantum Week 2021 alongside Olivia, Anamaria, Kallie and Samanvay at the Qiskit Advocates' session.

image Image displaying a Pulse Schedule from the 1->2 Rabi Experiment.