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Four Questions about Quantum Computing 1.What is quantum computing? 2.What has been done? 3.Where is it going? 4.What does quantum computing say to quantum.

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Presentation on theme: "Four Questions about Quantum Computing 1.What is quantum computing? 2.What has been done? 3.Where is it going? 4.What does quantum computing say to quantum."— Presentation transcript:

1 Four Questions about Quantum Computing 1.What is quantum computing? 2.What has been done? 3.Where is it going? 4.What does quantum computing say to quantum physics?

2 Four Questions about Quantum Computing 1.What is quantum computing? (surprisingly difficult to answer) 2.What has been done? (what I found out on my summer vacation) 3.Where is it going? (speculation) 4.What does quantum computing say to quantum physics? (epistemological analysis)

3 Four Questions about Quantum Computing 1)What is quantum computing? Quantum algorithms Quantum circuits Quantum machine analogous to Turing machine 2) What has been done? 3) Where is it going? 4) What does quantum computing say to quantum physics?

4 ● Quantum Algorithms ● Shor, Peter W., 1995, Polynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum ComputerPolynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer ● Grover's algorithm Grover's algorithm ● Berkeley book on Quantum Algorithms Berkeley book on Quantum Algorithms ● Quantum Circuits ● Quantum circuit - Wikipedia, the free encyclopedia Quantum circuit - Wikipedia, the free encyclopedia ● The Quantum Circuits Group The Quantum Circuits Group ● Q-circuit Q-circuit ● Quantum Turing Machines ● Quantum Turing machine - Wikipedia, the free encyclopedia Quantum Turing machine - Wikipedia, the free encyclopedia ● Quantum Turing Machines.(Berkeley) Quantum Turing Machines.(Berkeley) ● Quantum Turing Machine Simulator (Mathematica) Quantum Turing Machine Simulator (Mathematica)

5 Four Questions about Quantum Computing 1.What is quantum computing? 2.What has been done? Particles Photons Superfluids Junctions 3.Where is it going? 4.What does quantum computing say to quantum physics?

6 Four Questions about Quantum Computing 1.What is quantum computing? 2.What has been done? 3.Where is it going? Junctions Superfluids 4.What does quantum computing say to quantum physics?

7 “The chances for building a quantum computer are 50/50: there's a fifty percent chance in fifty years!” - William D. Phillips, 1997 Nobelist in Physics, quoted by John MartinisWilliam D. Phillipsquoted by John Martinis

8 Four Questions about Quantum Computing 1.What is quantum computing? 2.What has been done? 3.Where is it going? 4.What does quantum computing say to quantum physics? Does entanglement exist? What are the real statistics? Is the theory still satisfactory?

9 “One of the interesting things that quantum information processing has brought is an interesting way to look at the contrast between the classical and quantum worlds, that is, looking essentially at how much it costs to do something. How do resources scale when you're looking at a quantum problem compared to a classical problem? At the boundary between the classical and quantum worlds you have quantum computers, which are a macroscopic scale machine that operates on a preserved quantum phenomenon. It's a really interesting physics task.” - Prof. Ian Walmsley, Head of Atomic & Laser Physics, interview for Dr. Dobb's. interview for Dr. Dobb's

10 Links ● This Presentation ● http://www.softwoehr.com/softwoehr/qc/QC_FIG.odp http://www.softwoehr.com/softwoehr/qc/QC_FIG.odp ● My Dobb's articles ● Supercool Dude.. A chat with Anthony J. Leggett Supercool Dude.. A chat with Anthony J. Leggett ● The Hdirt factor : a chat with John Martinis The Hdirt factor : a chat with John Martinis ● Frustrated bosons on a two-leg ladder : a chat with Simon Trebst Frustrated bosons on a two-leg ladder : a chat with Simon Trebst ● Topological quantum computation : a chat with Michael Hermele Topological quantum computation : a chat with Michael Hermele ● Quantum Memory : A Chat with Ian Walmsley Quantum Memory : A Chat with Ian Walmsley ● Various Web resources ● Quantiki Quantiki ● Google Research : Machine Learning With Quantum Algorithms Google Research : Machine Learning With Quantum Algorithms ● DWaveSys.com DWaveSys.com ● My Quantum Computing Page My Quantum Computing Page ● QCL QCL ● qasmcirc Quantum Circuit Viewer qasmcirc Quantum Circuit Viewer


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