Introduction to Quantum Computing with Qiskit
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This document provides an introduction and overview of quantum computing concepts using Qiskit, including: 1) Quantum mechanics and computing principles like quantum states represented by ket notation, operators and measurement, and reversible computing. 2) An overview of key quantum computing concepts like superposition where a quantum state can be in two positions at once, entanglement where two quantum states are correlated, and interference. 3) A brief introduction to the Qiskit framework for programming quantum computers.
![A quantum state is represented by a |Ψ > [ket] state](https://image.slidesharecdn.com/yscgday3qc1-210922172514/85/Introduction-to-Quantum-Computing-with-Qiskit-3-320.jpg)
![Any physical observable is defined by a Quantum Operator
• Measurement operator are Hermitian and it’s a eigen value of a operator
• After measuring a quantum state, it collapses. So cant duplicate [No cloning theory]](https://image.slidesharecdn.com/yscgday3qc1-210922172514/85/Introduction-to-Quantum-Computing-with-Qiskit-6-320.jpg)
![Quantum System evolves with time [Unitary property]
• Reversible Circuit:
• Input Quantum Operation Output Same Q.O Output
• Landauer’s Principle: A bit of information erase will increase entropy [Reversible
Circuit]](https://image.slidesharecdn.com/yscgday3qc1-210922172514/85/Introduction-to-Quantum-Computing-with-Qiskit-9-320.jpg)
Introduction to Quantum Computing with Qiskit
- 1. Introduction to Quantum Computing with Qiskit Yachay Scientific Computing Group Day 3 Sakibul Islam Sazzad Artificial Brain Lab, Quantum Developer Website: https://sites.google.com/view/sakibulislamsazzad Email: sakibulislamsazzad@gmail.com
- 2. Table of contents ● Quantum Mechanics and Quantum Computing ● Postulates for Quantum Computing Bra-Ket Notation Operator (Hermitian) Measurement Reversible Computing (Unitary, Landauer’s Principle) ● Qiskit
- 3. A quantum state is represented by a |Ψ > [ket] state
- 6. Any physical observable is defined by a Quantum Operator • Measurement operator are Hermitian and it’s a eigen value of a operator • After measuring a quantum state, it collapses. So cant duplicate [No cloning theory]
- 9. Quantum System evolves with time [Unitary property] • Reversible Circuit: • Input Quantum Operation Output Same Q.O Output • Landauer’s Principle: A bit of information erase will increase entropy [Reversible Circuit]
- 10. Quantum Mechanics Superposition A quantum state can be at two position simultaneously 𝐻 = 1 1 1 − 1 H
- 11. Entanglement • Correlation between two objects • If two quantum states A and B are non-separable then it is entangled |𝜑00 > = 1 2 (|00 > +|11 >) |𝜑10 > = 1 2 (|00 > _ |11 >) H
- 13. Interference