akashkthkr / ibm_qchack_challenge2021

IBM Quantum Technical Challenge

Problem statement :

Qiskit Pulse allows you to program real quantum computers at the pulse level. Namely, it provides a language for specifying the microwave control tones (i.e. control of the continuous time dynamics of input signals) that program the quantum state.

In most quantum algorithms/applications, computations are carried out over a 2^n-dimensional Hilbert space spanned by {|0>,|1⟩}^n, where n is the number of qubits. In IBM's quantum hardware, however, there also exists higher energy states which are typically avoided. (e.g. the single qubit "DRAG" pulse helps reduce unintentionally occupation in the |2> state).

In this challenge we want you to use Qiskit Pulse to explore the higher energy states, and put together a unique project which shows how that higher energy state directly benefits or makes your idea possible.

The best application of this idea will be the winner. Preference will be given to projects that - use Qiskit and/or IBM Quantum's devices - explain issues faced, problem your team overcame, and future implications of your project - show how your project could benefit the quantum computing community - delve into why this is important for future research or applications

IBM Quantum will award custom swag prizes to the winning teams. Total number of teams receiving a prize will be determined by how many total projects are submitted. Note - All projects submitted must be using Qiskit version 0.25. Anyone can submit a project, however someone working for a GOE, i.e. Government Owned Entity, will not be eligible for prizes or awards. Full eligibility rules here.

Presentation :

• Please find attached the presentation containing outputs of the Jupyter Notebook and the other files

Jupyter Notebooks

• Quantum_AdditiveSynth.ipynb, Major Project where we apply higher energy states .
• [Quantum_AdditiveSynth.ipynb, Major Project where we apply higher energy states](./Accessing Higher Energy States.ipynb)

What Use Cases It Solves?

So far quantum audio signal processing algorithms have been trying to represent audio signals as a classical digital signals encoded on to qubits. As we saw, this is not sustainable as we scale up to more complex signals.

This implementation of using higher order quantum states starts the process of developing new representations of audio and sound for quantum devices. As more people from music technology and acoustic sciences, venture into quantum computing they will need to see that these devices can provide new forms of insight and expression, so that they can develop new paradigms and innovations within their own fields.