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Quantum Computing: Are we there yet?

An introduction to quantum computing and a review of the progress we made in the last 5 years.

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Video duration
01:01:27
Language
English
Abstract
Five years ago I spoke about my work in quantum computing, building and running a tiny two qubit processor. A few weeks ago, Google announced a potentially groundbreaking result achieved with a 53 qubit quantum processor. I will therefore review the state of experimental quantum computing and discuss the progress we made in the last 5 years. I will explain quantum supremacy, surface code architecture and superconducting quantum processors and show which challenges we still have to overcome to build large scale quantum computers.

We will first dive into the basics of quantum computing and learn about quantum gates, fidelities, error correction and qubit architecture. We will then go through Google’s experiment and try to understand what they actually did and why it matters. We will then see what else we need to build a useful quantum computer, and discuss when that might happen.

Talk ID
11039
Event:
36c3
Day
3
Room
Borg
Start
4:10 p.m.
Duration
01:00:00
Track
Science
Type of
lecture
Speaker
Andreas Dewes
Talk Slug & media link
36c3-11039-quantum_computing_are_we_there_yet

Talk & Speaker speed statistics

Very rough underestimation:
169.3 wpm
939.0 spm
171.9 wpm
950.9 spm
100.0% Checking done100.0%
0.0% Syncing done0.0%
0.0% Transcribing done0.0%
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Talk & Speaker speed statistics with word clouds

Whole talk:
169.3 wpm
939.0 spm
quantumqubitscomputerclassicalsystemqubitexamplealgorithmproblemcoursefunctioncomputingyearssystemssearchstatecomputationnumberandreascomputersstatesprocessorsolutiongoogle0casebit1miclargetimevaluesinterestinggatesregistersimulatebasicallyresultfindquestionerrorthingbuildoperationsamplitudesimulationsinglereadpowerbits
Andreas Dewes:
171.9 wpm
950.9 spm
quantumqubitscomputerclassicalqubitexamplealgorithmproblemfunctionsearchcoursestateprocessorsystemstatescomputingyearssolutionvaluescomputationcomputersnumbergatesbitcasesystemsregistertimegoogleamplitudethingfindinterestingbasicallyresultoperationsexperimentbuildspacelargegood50errorworkbitsinputtimescomplexityprobabilitypercent