2 Hello Quantum Developers World Yet Another Frontier for JavaScript - PowerPoint PPT Presentation

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Hello Quantum Developers World Yet Another Frontier for JavaScript

Hello Quantum Developers World QCon London 2020 Miguel Ramalho

Quantum Spectrum Software Physicists Scientists Developers Engineers Engineers Theorise Empirically Implement Connect Work Hard... test 5

bit.ly/qcon-qjs Goals Software Physicists Scientists Developers Engineers Engineers Demystify Hands dirty Benefit 6

bit.ly/qcon-qjs Quantum Computing is... leveraging natural phenomena happening at the atomic and subatomic scale to produce computations 7

Quantum Qubit Bit Bit Hydrogen atom 1 electron orbiting the nucleus 2 energy states (simplification) these are quantized: take only discrete (quantified) values. 8

Superposition Any two valid quantum states can be combined (superposed) into another valid state 9

Circuit Model 10

Circuit Model (Components) 11

Tools Tools 12

Quantum JavaScript libraries In this presentation For reference Quirk Jsqubits Qiskit Qiskit-js Quantum Peep JsQuil IBM QX 13

Quirk github.com/ strilanc/quirk Drag and drop web app to test Quantum Circuits 14

Circuit Model in Quirk Bloch Sphere 15

Qiskit github.com/ Qiskit/qiskit Framework for Quantum Computing Maintained by IBM 16

Quantum Peep github.com/ mapmeld/quantum-peep JS Tool to create and execute Quantum Circuits const qp = require('quantum-peep'); const viz= require('quantum-circuit-viz'); 17

Hello World Circuit 18

Quantum Peep github.com/ mapmeld/quantum-peep Works with 19

Quantum Peep github.com/ mapmeld/quantum-peep 20

Q Measurement 21

Q Superposition Measurement 22

Q Entanglement 23

True Random Numbers How would you do this? 24

Classical Quantum 25

Parallelism 26

Given N Find primes p , q such that: N = p x q 27

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Shor’s Algorithm 29

15 = 3 x 5 30

1099551473989 = 1048589 x 1048601 31

Quantum High Level Computing 32

Quantum Approximate Optimization Algorithm (QAOA) Find approximate solutions for constraint satisfaction problems Traveling salesperson ● ● Scheduling ● Graph Max-cut 33

Quantum Tunnel?? 34

Solve optimization problems 35

Quantum Supremacy 36

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Quantum Supremacy A moment in time, when quantum computers can perform more complex computations than classical computers can simulate 38

Quantum Cloud 39

Quantum Cloud Services 40

Rigetti Computing 41

QC Ware 42

Qiskit Aqua (Algorithms for QUantum computing Applications) 43

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Takeaways for Quantum Developers Today , you can ○ use JS to learn (visually and code) ○ invoke real quantum processors for free Use AI and optimization techniques on small problems ○ 46

Takeaways for Quantum Developers Tomorrow , you should (might want to) ○ Beware of traditional encryption ○ Understand how to map hard problems into Q-solvable ones For now, we must wait for Quantum Supremacy 47

Summary Software Physicists Scientists Developers Engineers Engineers Demystified Dirty Hands Benefit 48

bit.ly/qcon-qjs Thank you Question Time

bit.ly/qcon-qjs Thank you Question Time by Miguel Ramalho @msramalho

Additional Resources ● Google’s Quantum-Computing-Playground ● Google’s Cirq ● Qutech @ TU Delft’s Quantum Inspire ● QC Ware’s Forge 51