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Quantum Computing Day 1: Introduction to Quantum Computing

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Google Tech TalksDecember, 6 2007ABSTRACTThis tech talk series explores the enormous opportunities afforded by the emerging field of quantum computing. The exploitation of quantum phenomena not only offers tremendous speed-ups for important algorithms but may also prove key to achieving genuine synthetic intelligence. We argue that understanding higher brain function requires references to quantum mechanics as well. These talks look at the topic of quantum computing from mathematical, engineering and neurobiological perspectives, and we attempt to present the material so that the base concepts can be understood by listeners with no background in quantum physics.This first talk of the series introduces the basic concepts of quantum computing. We start by looking at the difference in describing a classical and a quantum mechanical system. The talk discusses the Turing machine in quantum mechanical terms and introduces the notion of a qubit. We study the gate model of quantum computing and look at the famous quantum algorithms of Deutsch, Grover and Shor. Finally we talk about decoherence and how it destroys superposition states which is the main obstacle to building large scale quantum computers. We clarify widely held misconceptions about decoherence and explain that environmental interaction tends to choose a basis in state space in which the system decoheres while leaving coherences in other coordinate systems intact.Speaker: Hartmut Neven

Channel: People & Blogs
Uploaded: November 30, 1999 at 12:00 am
Author: googletechtalks

Length: 56:27
Rating: 4.80
Views: 27132

Tags: education  engedu  google  googletechtalks  talk  talks  techtalk  techtalks  

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tiberux (November 30, 1999 at 12:00 am)
you are here because you are smart, this is what's going to make cloud computing come true
andrewandcindy (November 30, 1999 at 12:00 am)
I was fortunate enough to go to a conference on Quantum Computing last summer. I was one of only two undergraduates there, and my mind was totally blown. I strive to understand as much as I can, but I have so much respect for these people who can understand this high-level intersection of physics, computer science, and abstract mathematics.
sergzone (November 30, 1999 at 12:00 am)
lol, i'm glad i took calculus only 3 years ago :)
JUKIO01 (November 30, 1999 at 12:00 am)
im studying computer engineering right now. i hope one day i will be able to understand this, and maybe even be apart of this. really cool stuff
EVM3point0 (November 30, 1999 at 12:00 am)
"tried" how'd it go lol
EVM3point0 (November 30, 1999 at 12:00 am)
its funny i like this stuff but i hate math. Physics was fun in high school cuz the math was minimal.
davidwizard2006 (November 30, 1999 at 12:00 am)
that is a very good introduction to quantum computer, i buy a book written by issac chuang, i cannot finish the first 4 chapters in more than a whole month, they seems to be so heavily dipped into the hard math, little about how computer is made, or fundamental principal
Daghead (November 30, 1999 at 12:00 am)
This makes my brain feel like an ant's.
hjaimesc (November 30, 1999 at 12:00 am)
Very impressive introduction. I agree his accent is strong but even so the message get it through.
kbickhaus (November 30, 1999 at 12:00 am)
Would be easier if his accent wasnt so strong, and he needs to practice speaking. Very helpful though :)

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