D-Wave One and Quantum Computing

51
ge courtesy D-Wave Systems, Inc.

description

D-Wave claims to be selling the world's first commercial quantum computer. But is it really? And why are people so excited about quantum computing in general? (To fully follow along with this presentation, please grab the presentation script from http://granades.com/2011/09/12/talking-science-at-dragoncon-2011/ ‎)

Transcript of D-Wave One and Quantum Computing

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Image courtesy D-Wave Systems, Inc.

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Photo courtesy pasukara76

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D-Wave OneThe First Commercial Quantum Computer

Stephen [email protected]

http://granades.com@sargent on Twitter

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Computing with Craigs

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16 8 4 2 1

16 2 1 + + = 19

1 00 11

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Photo courtesy Oneras

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2

1

2

1

2

1,

2

1

Vertical light:

Horizontal light:

Amplitudes

Square for probabilities:

A mix:

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Vertical polarizer:

Horizontal polarizer:

nada

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Vertical polarizer:

45 degree polarizer:

Horizontal polarizer:

2

1

2

1

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111110

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3-Bit Number 3-Qubit Number

Superposition makesthis possible

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1001101

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11410301200

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111001004

1

111001004

1

Classical Computer Quantum Computer

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Photo courtesy joshfassbind

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,mod,mod

,mod,mod43

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nxnx

nxnx

If n has the factors p and q,then, if you pick a random x,the above sequence has aperiod that evenly dividesinto (p-1)(q-1)Leonhard Euler

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Photo courtesy joshfassbind

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3/1log2O n

3logO n

Classical factoring

Shor’s Algorithm

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Photo courtesy John Fraissinet

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Photo courtesy ghbrett

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Is There a Car in the Picture?

Yes!

No!

Yes!

???Photos courtesy borkazoid, Travel Aficionado, and MartinAbbott

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$10 meeeeeeelion

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Try to take over the world!

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