9 replies to this topic

[Mind]

Here is an article of fantastic proportions. Forget calculating at light speed, how about instantaneously? Sounds far-fetched, but then again I am not a Quantum Mechanics expert. Still, it seems teleportation has some solid experimental backing.

Electricity teleportation

Technology Research News  February 9, 2004

Researchers from Leiden University in the Netherlands have devised a way to teleport electricity.

Teleportation is possible at the atomic scale, and was discovered a decade ago for photons in free space. The researchers' proposal works for electrons contained in conductors, and could eventually be used within computer circuits.

A major obstacle to quantum teleportation is that in a metal or semiconductor electrons exist in a crowd, dubbed the Fermi sea, making individual electrons difficult to isolate and manipulate.

When the two carriers of electrical current -- negatively charged electrons and positively charged holes -- meet, they cancel each other out. The researchers have postulated that an entangled electron, however, could continue its existence at a distant location.

Entangled electrons are connected in such a way that specific properties of the electrons remain synchronized regardless of the physical distance between them.

The method could eventually be used to instantly transport information between the quantum bits, or qubits, of a quantum computer if electrons could be transported over distances of around 100 microns. Quantum computers use the properties of particles like photons, electrons and atoms to compute and are theoretically very fast at certain large problems, including those that would render today's encryption-based security systems obsolete.

Laboratory demonstrations showing that the method could be used to transport electrons a few microns could happen within two to five years; practical applications are a decade or two away, according to the researchers. The work appeared in the December, 2003 issue of Physical Review Letters.

[Mind]

A full fledged Quantum computer continues to look more like a reality in the near future. The theoretical foundations are there....it is just an engineering problem now.

By John Carey in Gaithersburg, Md.

Physics: "Putting The Weirdness To Work" 
Scientists say quantum materials will be the basis for amazing devices, but when?


The world of the quantum stretches the limits of human imagination. Who could ever believe, for instance, that atoms -- the building blocks of our seemingly solid landscape -- are able to exist in different places at one time? That they can be "entangled" together such that an action on one atom or particle will affect another across considerable distances? Or that they are irrevocably altered simply by the act of being observed?

Yet that is what quantum laws tell us. Einstein himself was famously troubled by the implication that reality was actually just a collection of probabilities, where God not only played dice with the universe but also hid the dice. "To common sense, quantum mechanics is nonsensical," says Nobel prize-winning physicist William D. Phillips of the National Institute of Standards & Technology (NIST).

Nevertheless, developing quantum theory was "the crowning intellectual achievement of the last century," says California Institute of Technology physicist John Preskill. It's the underlying principle for many of today's devices, from lasers to magnetic resonance imaging machines. And these may prove to be just the low-hanging fruit. Many scientists foresee revolutionary technologies based on the truly strange properties of the quantum world.

For instance, there's a state of matter that scientists created less than a decade ago called the Bose-Einstein condensate, in which each of many millions of atoms act identically and are everywhere in the sample at once. Dozens of research groups around the world are experimenting with these condensates, whose properties portend a future we can barely glimpse. "Physicists relish the weirdness, but now we're starting to ask if we can put the weirdness to work," says Preskill.

Some of the theoretical possibilities boggle the mind. For example: the elusive but intensely desired quantum computer. The mathematical challenge of factoring a 400-digit number -- which would take 10 billion years on today's supercomputers -- might be cracked by a quantum computer in 30 seconds. While there are a number of approaches to building such a device, recent experiments with the Bose-Einstein condensates are opening up clever new paths.

Quantum weirdness also enables communications to be sent in unbreakable code. New companies, such as New York City's MagiQ Technologies and id Quantique of Geneva, are already turning these ideas into commercial products. At the same time, the exploration of quantum domains may shed more light on abiding scientific mysteries, such as how some substances conduct electricity with zero resistance -- a phenomenon called superconductivity. That could lead to the transmission of electricity across great distances with no loss. And a forthcoming paper from IBM researchers will show how quantum phenomena can be exploited to see molecules more clearly.

These uses may just scratch the surface of the possible. No one has ever been able to foresee transformations wrought by any revolutionary science. And the quantum world is no different. "We have not yet begun to figure out what the applications are," says NIST physicist Carl J. Williams. "But the risk is underestimating the impact."

Quantum computers and most other applications are decades away, if indeed they can be built at all. Still, the enormous potential has led to programs at companies like IBM (IBM ) and Hewlett-Packard Co. (HPQ ). The Pentagon's Defense Advanced Research Projects Agency is now beginning a major effort to construct a working quantum information processor. In all these efforts, "the goal is the control of quantum matter," says Immanuel Bloch of the Johannes Gutenberg University of Mainz. "It's a great challenge, but there are great rewards."

For a glimpse of this endeavor, drop by the lab of William Phillips and his team in Gaithersburg, Md. Sprawling over a giant lab bench is a maze of precision mirrors and lasers, all converging on a small glass vacuum chamber where the quantum world is being probed. Phillips won his Nobel in 1997 for a technique known as laser cooling, in which beams are used to slow atoms down. That chills the atoms until they are a fraction of a degree above absolute zero. Now, using rubidium atoms, Phillips is making them even colder by letting the warmer ones "evaporate."

PEAKS AND TROUGHS. Inside the glass chamber, he is creating the fragile Bose-Einstein condensate. The clump of atoms can be huge -- big enough to be visible to the naked eye. At that scale, you would expect the stolid laws of Newtonian physics to rule. Instead, the atoms obey the Heisenberg uncertainty principle, which specifies that an electron or atom can't be pinned down to any one location. Even though the clump is a tenth of a millimeter across and contains a million atoms, "every atom is everywhere -- that's what makes it so wonderful," says Williams.

This strange state of matter was predicted by Einstein, building on work by Indian physicist Satyendra Nath Bose, back in 1924. It was first created by Phillips' NIST colleague, Eric A. Cornell, and Carl E. Wieman of the University of Colorado, in 1995 -- a Nobel prize-winning achievement. Now, an estimated 50 groups around the world are experimenting with the strange stuff. "It can do some amazing things," says Phillips.

One of the most intriguing -- and potentially useful -- maneuvers in Phillips' lab involves putting the atoms into neat little rows. The trick is using precisely tuned laser light. Imagine dropping pebbles into a pond, sending waves across the water. Then drop pebbles at the opposite shore, dispatching waves in the other direction. Where the two groups of waves meet, they create so-called standing waves -- an unchanging collection of peaks and troughs, like a row of sand dunes in the desert.

Laser light is also a wave. So two intersecting beams similarly create peaks and valleys. Scientists call this an optical lattice. And when Phillips and other researchers shine intersecting laser beams though the Bose-Einstein clump of atoms, individual atoms almost magically go from being everywhere at once to nestling in the valleys. "It's a great gift of nature," says Phillips. "We've been lucky that things worked better than expected."

To information scientists, such a neat arrangement of atoms looks startlingly like the basis for a computer. It can be arranged that each atom is in one of two energy levels, separated by a small quantum jump. Thus, each atom could represent a 0 or a 1, like the bits in a regular computer.

But these are no ordinary bits. Because of quantum weirdness, an atom can be a 0 and a 1 at the same time. What's more, the different quantum bits, or "qubits," can be entangled with each other, even if there is no actual connection. "Because of the mystery of entanglement, the state of one atom will be dependent on the state of the other," explains Williams. "It's a much stronger relationship than marriage." As a result, for some calculations, the power of a quantum machine grows exponentially with the number of qubits -- twice the bits gives you four times the power. A 300-qubit machine could store more combinations than there are atoms in the entire universe, says Williams.........

[alex83]

The concept of transferring info faster then the speed of light was the solution to the EPR paradox, in which EPR (Einstein, Padolsky and Rosen if I recall correctly) suggested in the 30-ies that quantum mechanical description is not full, in the following way:

Imagine you could excite an atom so it emits two photons, EPR claimed that if you measure the spin polarity of one of them (vertical for example) you can immediately know the spin polarity of the other (horizontal). You didn't made any measurements on the other photon but you know his polarity, which is not allowed by the wave description. Hence they assumed the wave description is incomplete.

The solution to the paradox is that the polarity of the other photon not defined before the measurement, the measurement made on one of the photons immediately sets the other photons state (independently of the distance between the photons). This was confirmed by an experiment (in 1983, if I recall correctly), I can tell about the experiment but it won't be understandable if you don't know quantum mechanics.

This is the “not locality” principle (i.e. one can determine particles property (collapse its wave function) immediately by performing measurement on another particle in other place).

Buy the way, to say something is simultaneously in different places is delusive. According to quantum mechanics there is curtain probabilities to measure something in different places, you won't measure something in tow places at once. Moreover you won't even measure tow fermions (electrons, protons etc = differential spin. not photons, gravitons etc = integral spin) in the same place...

Edited by alex83, 01 April 2004 - 09:27 PM.

[shedon666]

where God not only played dice with the universe but also hid the dice.

paradise ={homonym}= pair of dice.

i have always seen this relation of the homonym. it's funny it came up in this "scientific" article of information. the world of homonyms have always interested me; of sound mind.

I have placed alot of my workings and interest in the quantum of physics/mechanics. i love it because "faith" and "proof" are agitators of progression within it. also, quantum physics is that of a respected field of science the cannot be proven exists. i love this aspect of the field, because it is parallel with the fact that I cannot prove to anyone that i love them or another. this internal evidence is enough for me to onward my positive progression. everything really is perception; the quantum. everything stems from perception. everything is so damn basic it's funny. i actually teleported once, but before the movement was complete, the actual finale was thwarted by "wtf!", and then i got sucked back to wence i came....true story....(no drugs either). in the place i was tele'n to, i was appearing, and was totally astonished by what happened, then as i started to express this excitement ("omg! did you guys see that?", i was amongst friends) that i just did some cool star trek sh!t, i started to retract from the movement, unwillingly. i learned that if it were to happen, then in that "other" reality, or "moved" reality, it was totally normal. on that other side my reaction of "wtf" was alien. so the biggest issue i still deal with, is dealing with an accomplishment like that; can i have inward excitement about completing such a task? or do i have to conquer expression as a form of reaction itself? wierd....

[th3hegem0n]

i actually teleported once

.... what the hell are you talking about?

[Lazarus Long]

Here is an interesting application. Unbreakable encryption?

http://www.newscient...p?id=ns99994914

Entangled photons secure money transfer
17:10 22 April 04
NewScientist.com news service

An electronic money transaction has been carried out in at a bank in Austria using entangled photons to create an unbreakable communications code.

Although of commercial quantum cryptography products already exist, none of these use entangled photons to guarantee secure communications.

The link was used to transfer money between Vienna City Hall and Bank Austria Creditanstalt on Wednesday. The cryptographic system was developed by Anton Zeilinger and colleagues from the University of Vienna and the Austrian company ARC Seibersdorf Research.

Entangled photons obey the strange principles of quantum physics, whereby disturbing the state of one will instantly disturb the other, no matter how much distance there is in between them.

The pairs of entangled photons used were generated by firing a laser through a crystal to effectively split single photons into two. One photon from each entangled pair was then sent from the bank to the city hall via optic fibre.


Key creation

When these photons arrived at their destination, their state of polarisation was observed. This provided both ends of the link with the same data, either a one or a zero. In this way, it is possible to build a cryptographic key with which to secure the full financial transaction.

Quantum entanglement ensures the security of communications because any attempt to intercept the photons in transit to determine the key would be immediately obvious to those monitoring the state of the other photons in each pair.
(excerpt)

[shedon666]

th3hegem0n says:

.... what the hell are you talking about?

i will entertain your profound one liner of wonder by reiterating and elaborating on what i did say in the original post of mine.

it seems your reaction suggests outright denial? well i seen it, and quite possibly no one else has. i did state that:

everything really is perception; the quantum. everything stems from perception.

...and then i explained how i the "traveler" experienced it. if the reader would pay attn and notice the happenings of the experience described in literary, then the reader would notice that when i was appearing on this (what i can only describe as) "other side" or target destination of teleportation, which in real life was about 150-200 miles away (SLC, UT to Ogden, Utah) i experienced the working "field" of quantum as it happened.

ok here is a more descriptive quality explanation: i was laying on a couch in SLC, Utah, awake not dreaming, not high on dope or any other rational explanation. i was going through quite some distortion quality moments in my life and was sort of meditating on pure oblivion at the time, feeling lost and confused. i could quite say that i was alive-dead, just careless and unfocused. well, as i was lying there, i was thinking about the band i was affiliated with, which was the only positive thing in my life at that time. i was just lying there thinking and pondering. throughout all my chaotic life, i was focusing on the only positive thing in my life; my band. as i was doing this, thinking of my bandmates faces, and environment, etc. i started to actually see it. then i started to feel it, come to find that i started to actually appear on my bass players couch in Ogden, Utah, in the same position that i was lying in in SLC, with my friends sitting in the room with me. the reader of this story thus far might suggest it was all internal mentality/delusion, but i beg to differ. the air that i started to breath was different, it was penetrating my awareness; i knew exactly what was happening, i was tele'n to there. [ok, now this is where the science of quantum was defined and experienced] as it started to happen and manifest, i started freaking out like "holy crapoli! i am teleportin'!!!". i immediatly wanted to jump up from the couch (in Ogden) and express to all my friends this new "pioneering breakthrough in science and humanity" that i just accomplished. as this ego trip started to saturate, the movement seized. it seems that i discompleted the transaction by actually living a lie. it was a lie to express such feelings of ego because if i truly were doing this act, then it would of been an alien mannerism to jump up from that couch in Ogden and say to the room that i am such a great individual, because as i experienced it, i was "already there". it was more like a shift. it seems that my potential reaction would of caused an unreal reaction that was alien to the environment i was tele'n to. i know this is truth because i intuitively felt their response. it was like, "oh really?, well thats funny because you have been here for a while." [so in other words, the perception of the censensus (including my own; i was not loyal to the inner journey itself) did not match up, equate, or harmonize, therefore the tele was not official]

sometimes when somebody does something great, it is the self proclamation of that greatness from that individual that ruins the greatness. also, who of greatness regularly states how great they are? i dunno. i am not trying to prove anything to anyone reading this, but i did experience it and it was real. quantum physics suggests perception and alternate realities. i lived it, and i cannot prove it to anyone. it is this notion to "want" to prove something to another human that totally defiles the entire nature of the act itself. it is a journey for the soul, the individual. to want "credit" or "recognition" is an egotistical attention starved sellout frame of mind/soul. lol, i actually teleported, and given if i succeeded to finish the act, i might now be some kind of time-traveler-beam-me-up-scotty, that has learned to just enjoy it and keep his mouth shut....but instead, on my initiative journey, i messed it up, because of my egotistical notion to want "credit" for what i have done. $$$ = is the root of all ...er, most destruction; a slaughtered cow ends up being a 99cent whopper right? we ignore our fellow earthlings that do know magical stuff, right now, in the present, here on earth. but what do humans do? we kill them, the ones that can do supernatural things, and then search our pc's for how to levitate, or shapeshift, or predict earthquakes, etc etc., the things they knew how to do. humans disgust me in general, thats why i changed.

[th3hegem0n]

I'll believe it when I see it.

[Lazarus Long]

This link is to a NOVA series on String Theory, Relativity, and Quantum Mechanics. It requires sound and probably a broadband connection to enjoy it best but if you have these and a desire to view a well organized and "fun" basic primer of advanced physics here it is.

The Elegant Universe
(3 hours)
To view any part of this three-hour mini-series, choose an episode from one of the three columns.
Each hour-long episode is divided into eight chapters. These programs are not available for downloading due to rights reasons.
http://www.pbs.org/w...nt/program.html

********
Please everyone as you find high quality Video Lecture series like these post the links so that all subsequent seekers can share the wealth of knowledge we are gathering here.

[Lazarus Long]

I am also going to cross link this thread to the one on the lecture series started independently by Kevin and the one on String Theory where Jay posted the same link. This is because I am applying a unification principle of my own and encouraging the discussion to review the important information available in those threads.

String Theory
http://www.imminst.o...9&t=2909&hl=&s=

The Elegant Universe
http://www.imminst.o...9&t=2208&hl=&s=