# Tutorial 3 - universal quantum computation (part 1)

### What quantum gates make up a set of universal quantum gates?

In this session, we shall learn about the most fundamental quantum operations that is required in universal quantum computation. Classical gates such as NOT, AND, OR, etc. operate on classical bits to perform classical computation. Similarly, quantum gates such as CNOT, H, T, etc. are utilised to manipulate quantum information. It is seen that the set {CNOT, H, T}, for example, is universal, and using the elements from just this set, one can perform arbitrary operations on qubits.

In part 1, you will learn the definitions of CNOT, H and T gates. We will perform operations on single qubit and two qubits using these gates using qutip. I will demonstrate how one can, for instance, create a superposition states using H gate. T gate (or phase gate) and H gate act on single qubit whereas CNOT gate acts on two qubits, and is an important gate required to perform two qubit operations and implement entangling blocks in quantum circuits.

**Please join in via this link on 29.04.2021 (Thursday) at 7 PM (Nepali time) : **

**https://zoom.us/j/99735513295?pwd=UXQ3amZzeXhhU1g1YzBBenZNN3JIdz09Meeting ID: 997 3551 3295Passcode: 117508**

See you!

Manish

Recording from this session is available here:

### News and Events

Bonus lecture from recent invited talk at Jacobs University Bremen. At the end, I discuss superconducting quantum computers.

A one-year postdoc position is available in quantum-optical information processing and boson sampling at the University of Tehran. For more information please contact (srahimik@gmail.com).

Join John Barnes for S1E4: The Human Quantum System Panel Discussion. 27th Apr 16:30 BST

Check out more events for the Quantum Computing community here!

IBM's new tool lets developers add quantum-computing power to machine learning

**NVIDIA**introduces**cuQuantum**, an SDK of optimized libraries and tools for accelerating quantum computing workflows.Quantum computing opening up new business horizons in finance

Breakthrough: Realization of a Multinode Quantum Network of Remote Solid-State Qubits.

India completes free space quantum key distribution for the first time

Canadian Defense Experts Develop Quantum Science and Technology Strategy

Subcarrier QKD demo on dense wave division classic channel in Russia

AWS supporting quantum computing research at Israeli universities

Cambridge Quantum Computing Pioneers Quantum Machine Learning Methods for Reasoning

Fraunhofer launches quantum computing research platform in Germany

Deloitte publishes Understanding potential quantum use cases to move forward with confidence

Chemists used quantum simulations to understand a solvent that holds promise for green energy

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