Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

This is hurting my head (Quantum processor)

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
This topic is archived.
Home » Discuss » Archives » General Discussion (01/01/06 through 01/22/2007) Donate to DU
 
Tab Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 06:37 PM
Original message
This is hurting my head (Quantum processor)

A computer chip based on the esoteric science of quantum mechanics has been created by researchers at the University of Michigan. The chip might well pave the way for a new generation of supercomputers.
...
That is accomplished by the quirky nature of quantum mechanics, said Christopher Monroe, a physics professor and the principal investigator and co-author of the paper "Ion Trap in a Semiconductor Chip." He explained that that chips can process multiple inputs at the same time in the same device.

"With quantum mechanics, an object can be in two places at the same time, as long as you don't look at it," he said. The quantum computer architecture can store quantum bits (qubits) of information, where each qubit can hold the numbers one or zero, or even both digits simultaneously.


http://news.yahoo.com/s/nf/20060113/bs_nf/40876;_ylt=AkNSC2RbkvAIkDLJNmhNuC2s0NUE;_ylu=X3oDMTA3ODdxdHBhBHNlYwM5NjQ-

I'm aware of Heisenberg's Uncertainty Principle, and Shrodinger's cat, and how in THEORY you can have something in two states in time, 'cause you don't really know, but this is implying you can actually put that to use and it's hurting my head as to how that works.

I have a degree in computer science, but I can't connect what a computer requires as an absolute with with uncertainty at its core.

??
Printer Friendly | Permalink |  | Top
SmokingJacket Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 06:40 PM
Response to Original message
1. They've been trying to do this for years.
I knew a woman in 1992 who was working on it... will be cool when/if they finally do...

She explained to me that it would be like light: different frequencies rather than o's and 1's, which are the building blocks of normal computers.

Can't say I really "get" it but I'm no scientist...
Printer Friendly | Permalink |  | Top
 
NorCalDem Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 06:42 PM
Response to Original message
2. What I've learned after enough years in the science field
is don't try and understand quantum mechanics too well. It'll only hurt your head. Just appreciate it for what it is, a revolution of the computer chip :D
Printer Friendly | Permalink |  | Top
 
hwmnbn Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 06:43 PM
Response to Original message
3. qubits? Isn't that the unit of measurement......
Noah used to build the ark?

Man, that technology has been around for eons!!
Printer Friendly | Permalink |  | Top
 
tocqueville Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 06:44 PM
Response to Original message
4. Schroedinger's cat before and after the experiment



Printer Friendly | Permalink |  | Top
 
Strong Atheist Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 06:49 PM
Response to Reply #4
5. ROFLMAO! nt.
Printer Friendly | Permalink |  | Top
 
ewagner Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 06:50 PM
Response to Reply #4
6. ROFLMAO
Yeah....that about sums it up.....

Seriously, quantum mechanics is some pretty wierd stuff....Einstein hinted at the Schroedinger problem when he referenced "weirdness at a distance". Meaning it was possible for instaneous change even at distances that span the universe....

some pretty f'd up stuff but I'm fascinated by it to this day.
Printer Friendly | Permalink |  | Top
 
acmejack Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 06:52 PM
Response to Reply #4
7. You fiend!
That's hilarious!
Printer Friendly | Permalink |  | Top
 
Pithy Cherub Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 06:53 PM
Response to Original message
8. Multiple dimensions as explained by
Lisa Randall, MIT,theoretical physicist speaks to the inability of us to draw them because we can't conceive of it. Her book, Warped Passages, goes into heavy detail and quotes Heisenberg "We simply have to remember that our usual language does not work anymore, that we are in the realm of physics where our words don't mean much." It really is mind bending.:crazy:

Printer Friendly | Permalink |  | Top
 
FogerRox Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 07:07 PM
Response to Reply #8
9. if you were living in a 2 D universe how do you draw a 3D universe?
Printer Friendly | Permalink |  | Top
 
tocqueville Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 07:15 PM
Response to Reply #9
11. use maths
that's exactly what we are doing when we describe a 5th dimension. The problem is that the language is very difficult for most of us and mastered by a few.
Printer Friendly | Permalink |  | Top
 
Pithy Cherub Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 07:25 PM
Response to Reply #9
12. The 2D to 3D version is explained as follows:
Edited on Fri Jan-13-06 07:27 PM by Pithy Cherub
It's under a picture of a sphere shown as whole (3D) and then a layered (like cake) sphere (2D) that makes up the whole 3D version. "If a sphere passes through a plane, a two dimensional observer would see a disk. The sequence of disks that the observer sees over time compromise the sphere." She goes on to explain a hypersphere (4 spatial dimensions)and.."if it were to pass through our universe, it would appear to us as a time sequenceof three-dimensional spheres that increase, then decrease in size."

The 5th dimension (and more after that) are part of the very first chapter. The clue is string theory that she thinks open more dimensions. Let's just say I am still, um, digesting...
:crazy:
Printer Friendly | Permalink |  | Top
 
Spinzonner Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jan-13-06 07:12 PM
Response to Original message
10. “I think I can safely say that nobody understands Quantum Mechanics”

Richard Feynman
Printer Friendly | Permalink |  | Top
 
Tab Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jan-14-06 09:18 AM
Response to Original message
13. I guess the problem is
that we move from "since it could be 1 or 0, we can assume it to be either or both, since we don't really know" to "it can and is both at the same time, and we're utilizing it".

I know they've wanted to do this for years, and presumably people have been working on it, but the part of actually being both at the same time is just a little much for me.

Or maybe I need to suspend my 3D/4D view of the world, and accept that there's more D's out there than I was raised to believe in...
Printer Friendly | Permalink |  | Top
 
Toots Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jan-14-06 09:40 AM
Response to Original message
14. It is all magic
I know how to turn the machine on and off but is it possible there are really two machines in front of me? :+
Printer Friendly | Permalink |  | Top
 
mrfrapp Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jan-14-06 10:19 AM
Response to Original message
15. Quantum Algorithms
"I have a degree in computer science, but I can't connect what a computer requires as an absolute with with uncertainty at its core."

It gets really juicy when you realise what's possible with this uncertainty. Shor's algorithm for example, suggests that public key cryptography is not as robust as we currently imagine.

http://en.wikipedia.org/w/index.php?title=Shor%27s_algorithm&oldid=35125815

With really big quantum computers that will no doubt be developed after the creation of the chip described in the yahoo article, RSA will be effectively useless. We live in interesting times.
Printer Friendly | Permalink |  | Top
 
DU AdBot (1000+ posts) Click to send private message to this author Click to view 
this author's profile Click to add 
this author to your buddy list Click to add 
this author to your Ignore list Fri Apr 19th 2024, 03:43 PM
Response to Original message
Advertisements [?]
 Top

Home » Discuss » Archives » General Discussion (01/01/06 through 01/22/2007) Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators


Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC