Warp drive continues to be tested


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Message 1363511 - Posted: 2 May 2013, 10:20:43 UTC - in response to Message 1363509.

Don't worry. I've been following this field of research since 1996 and have also written on it in an issue of Technology Review of MIT, Italian edition. But not much progress has been done, only more experiments. I've also taken part in AQUA@home, where AQUA stood for Adiabatic QUantum Algorithm. But it disappeared and never came back. Maybe Lockheed Martin had some reservations about it. Cheers.
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Message 1363513 - Posted: 2 May 2013, 10:46:50 UTC - in response to Message 1363511.

Sorry I was not much help .I think you where on the right track with your link to diamonds but you obiously know more than me . Look forward to any posts you put up about it thou I find these things realy fascinating .
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Message 1364951 - Posted: 5 May 2013, 20:44:09 UTC - in response to Message 1362585.

IF they can perfect that quantum computer. Then we might see some break throughs in physics and quantom mechanics.

Perfecting the quantum computer will be like splitting the atom, for the first
time, all over again. It will eventually revolutionise they way many people, if
not all, will live and carry out their everyday lives.


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Message 1364952 - Posted: 5 May 2013, 20:47:01 UTC - in response to Message 1362564.

I think that teleportation of photons is already being done. But they are massless particles.
Tullio

An interesting particle is the photon, especially when split for each half
manages to stay in communication with the other.


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Message 1365067 - Posted: 6 May 2013, 9:01:16 UTC - in response to Message 1364952.

I think you refer to the Einstein-Podolsky-Rosen paradox. But it consisted of a couple of photons, not to a photon split in half. They were entangled, and Einstein spoke of a "spooky action at distance".
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Message 1365618 - Posted: 8 May 2013, 5:47:28 UTC - in response to Message 1364952.

I think that teleportation of photons is already being done. But they are massless particles.
Tullio

An interesting particle is the photon, especially when split for each half
manages to stay in communication with the other.



Yep Tullo is correct it is Qantum Entangled yes there spooky action but Einstein didn't believe it he said God doesn't throw dice

However resent experiment with Teleportion in Hawai proves it does happen and teleportation would invole 3 protons
Again you need to watch Professer Brain Green doco Fabric of the cosmos episode 3 Qantum Leap
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Message 1366313 - Posted: 10 May 2013, 12:55:17 UTC
Last modified: 10 May 2013, 12:57:20 UTC

I've read that a quantum computer built by D-Wave of Canada (D-Wave 2) has proven to be 4000 times more efficient in solving the traveling salesman optimization problem than a Xeon-based PC. But it needs cryogenic equipment and it costs 6666 times more.
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Message 1366362 - Posted: 10 May 2013, 15:33:29 UTC - in response to Message 1366313.

The traveling salesman problem is "solved" by tree pruning algorithms that promise that no better solution is worth the extra computer time. The best known method for this involves the Karmarkar method for linear programming problems(Actually he wanders around inside of the pivot points).

Can anyone explain what a quantum computer is, how it works and why it would be more efficient in solving this type of problem. In what sense is it more efficient (speed, time, number of calculations ?)

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Message 1366366 - Posted: 10 May 2013, 16:00:36 UTC - in response to Message 1366362.

A true Qantum computer with 300 Qantum bits would have more processing power than all the computers on the planet

it unlike a digital silicon computer does not think In 0 , 1

0 being off 1 being on

it thinks in 0,1 and somewhere in between and it can do it at the same time

unlike a normal digital computer that can only do 1 calculation at a time

true Qantum computer would be able to for the perpose of explaining it would be

doing 3 calculations at the same time . I hope that explains it

my math is not that good but I think it's ,for a 300 Qantum bit machine is

3 to the power of 300 calculations at the same time
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Message 1366369 - Posted: 10 May 2013, 16:07:46 UTC
Last modified: 10 May 2013, 16:15:18 UTC

I heard some time ago about a silicon chip that can also be on off and hrf on or hrf off depending on how you wish to put it

I believe it has been called the GOD chip not shore if the one Tullio is talking about is based on it

It is also called the digital analogue chip

[edit] if the one Tullio is talking about is based on the GOD chip I do not think it can do the calculations at the same time and therefore is not a true Qantum computer [edit]
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Message 1366371 - Posted: 10 May 2013, 16:19:25 UTC

oh one more thing a true Qantum computer with 300 Qantum bits would be the size of a grain of sand
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Message 1366377 - Posted: 10 May 2013, 16:27:51 UTC - in response to Message 1366362.

It would need more space, but the basic idea of a quantum computer is that a qubit can have both values zero and one at the same time, so that a byte could have 2 exp 8 different values. This greatly amplifies the computing power of a quantum computer, but the real problem is that of extracting one from all possible results of a calculation. This is nothing but the measurement process in quantum mechanics, so quantum computers depend on the machinery of quantum mechanics. Quantum computing power is increased by the idea of entanglement between two separated measurements, so that measuring one value gives also the result of the other. As far as I know, this is only a theoretical possibility and has not been exploited by the D-Wave computers.
Quantum computing is employed also in quantum encryption method for secure transmission of cyphers, and this has had already practical applications, especially due to prof. Anton Zeilinger of Vienna University.
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Message 1366381 - Posted: 10 May 2013, 16:36:30 UTC - in response to Message 1366377.

Tullio you watched the Brian Green Doco Qantum leap was he wrong in explaining it or did I get it Wrong based on that doco ?
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Message 1366391 - Posted: 10 May 2013, 16:55:25 UTC - in response to Message 1366381.

Tullio you watched the Brian Green Doco Qantum leap was he wrong in explaining it or did I get it Wrong based on that doco ?

I cannot remember what he said, but this is not an easy matter to explain since it is really an application of quantum mechanics and if you do not know it well enough you cannot really grasp what is being sought. I have studied quantum mechanics at the University of Trieste, and have also followed the lectures of prof. Seth Lloyd of Cambridge University on the Internet (www.qubit.org) but I am not sure I have understood it completely. Quantum mechanics is still an area of research after about eighty years and the search for quantum computers has brought to a better understanding of its features but also of some its problems,which are still discussed.
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Message 1366398 - Posted: 10 May 2013, 17:18:00 UTC

Ok . Thank you for answering me maybe William would be better if he watched the doco too as I find Quantum mechanics hard to understand as well and I have not studied it and only know what I have read or watched in documentary's
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Message 1366435 - Posted: 10 May 2013, 18:21:33 UTC - in response to Message 1366377.

A byte of eight binary bits now has 2 to the eighth power possible patterns (that is 256)

I understand that a Qubit has three states so a Qubit byte of 8 qubits would have 6561 possible patterns. So I say so what--how does that make it faster. Entanglement involves positive or negative spin --2 states. I don't see the qubit thing here.

There would have to be an explanation of how doing "Quantum Logic" is superior to doing Boolean Logic. And some explanation of how this could be done faster than todays logic circuits.

In the old days Neural Networks were supposed to be more powerful as well. I and others, I am sure, showed that this was no different from Boolean logic (for the neurons being proposed back 50 years ago)

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Message 1366448 - Posted: 10 May 2013, 18:27:33 UTC - in response to Message 1366398.
Last modified: 10 May 2013, 18:29:24 UTC

maybe William would be better if he watched the doco too


You are probably right. But each time I try to dig into this subject i always come away with "Huh?".

I minored in Theoretical Physics for my master's degree but also had a disbelief about the Copenhagen folks and Schrodinger himself as well. I always got a queazy felling in my stomach when trying to swallow these ideas. Plus,

I am with Feynman who said "Anyone who thinks that they understand quantum mechanics--doesn't"

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Message 1366482 - Posted: 10 May 2013, 19:46:56 UTC

Going "quantum" allows the potential for nearly infinite compute capability in that in the quantum world, you can 'test' all possible solutions simultaneously. Sort of the ultimate in parallel computation...

The only problem is that there seems to be only one 'secret' machine ever sold to work quantum magic. There is also a theoretical problem in that if the Canadian quantum machine really did work, then the theory of holographic representation of physical state for our universe would be violated...


Whichever way, we would get some very 'interesting' results!

Looks like something for Dadio to draw up some designs for!! ;-)

Possibly a competition between a coupling of dog biscuits vs a really hot cup of tea?...


Keep searchin',
Martin

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Message 1366498 - Posted: 10 May 2013, 20:44:56 UTC
Last modified: 10 May 2013, 20:46:21 UTC

bah usually computers works like if an hole is not filed = 0 and if it s filled = 1

if instead, a system could be set like... neutral commutators and if it goes to an '-' charge: it could be ' negatif = 0 ' or goes to an '+' charge, it could be ' positif = 1 ' so staying at neutral poisition could means 'both value' or 'none of these value' ^^^

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Message 1366510 - Posted: 10 May 2013, 21:22:56 UTC - in response to Message 1366498.

you can 'test' all possible solutions simultaneously.


That's implied by Feynman's interpretation in that all paths are traversed from A to B. I still don't see how that relates to logic or to a computer program that could make use of the stated fact.

Exactly how could all possible paths through a network be tested at once?

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