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First Teleportation of Multiple Quantum Properties of a Single Photon
KentuckyFC writes Photons have many properties, such as their frequency, momentum, spin and orbital angular momentum. But when it comes to quantum teleportation, physicists have only ever been able to to transmit one of these properties at a time. So the possibility of teleporting a complete quantum object has always seemed a distant dream. Now a team of Chinese physicists has worked out how to teleport more than one quantum property. The team has demonstrated it by teleporting both the spin and orbital angular momentum of single photons simultaneously. They point out that there is no reason in principle why the technique cannot be generalized to include other properties as well, such as a photon's frequency, momentum and so on. That's an important step towards teleporting complex quantum objects in their entirety, such as atoms, molecules and perhaps even small viruses.
Let's all hope that this knowledge can be used for a noble cause one day.
Like shaving a few milliseconds off the telecoms links between international stock-exchanges, allowing fortunes to be made for the lucky few via arbitrage!
I'm not a quantum physicist, but I'd like to wait for other teams to replicate this study before believing it's real. Sometimes things that are too good is simply too good to be true.
This is just random musing, but I would love to see a complex camera built using some of these entanglement properties.
Using entangled photon light sources and multiple CCDs with a single entry aperture and some beam splitters, (So the the multiple CCDs get the exact same entangled photons), I expect some very interesting photography would result.
I realize that would mean using a laser lightsource, making it unsuitable for photographing people (unless they shut their eyes), but I could definitely see such an instrument being constructed and used using conventional components.
Wow ... just one step closer towards man's ultimate dream of being able to teleport small viruses.
i could live a little longer in this prison
One step closer to those Heisenberg compensators that Miles and Reg were always trying to fix.
http://alternatives.rzero.com/
into this announcement needs to be drummed out of the industry. Whether it was the researcher or someone along the announcement chain that introduced the mention of transmitting a virus in order to (I have to assume) increase the viewership of the announcement, it is a tactic that does far more harm to science than the reward justifies. Science the world over is being limited far too often by unreasoned fear. Let us at the least not encourage it. But let us also go further than that and make sure that people who try to take advantage of this fear for profit receive no further support from the true science community.
From single photons, to complete atoms, to complete molecules, to a proof of concept on something that could be called alive (or at least working enough to be able to reproduce in the right environment). Each one of those steps are pretty big jumps in complexity, that may bring their own showstoppers to the party. But probably will give hard numbers to the real impossibility of teleporting humans.
obligatory xkcd strip
I imagine that teleportation of complex objects would be a technique that did NOT require gathering data independent of an object. I figure anything transported would either have the "space around it" reassigned -- kind of like a carrier wave, or they would be smashed into a super dense object that had to transfer 100% of the energy to a receiver. Basically, you use the "equal and opposite" properties of physics to guarantee data transmission. However, you may have to jump on another pad if you are uncomfortable with suddenly being left handed.
>>"ad space available -- low rates!!!"
Right, which is why helicopters played such a prominent role in the American Civil War.
It can exist, but virtually every paper I've ever read, especially any that mention optical vorticies confuses Orbital Angular momentum with simple minded othogonal function decompositions of spatial light patterns. Any spatial pattern including this printed page can be written in terms of legendre polynomials or YLMs but that in itself does not give it orbital angular momentum quantum numbers. That's a whole nother ball of wax. To understand the latter you have to puzzle out why you think a half-wave plate (a circular polarizer) is a linear device that doesn't change the frequency of the photon. (after all, for every reversal of polarization, the earth or whatever the device is attached to has to accelerate to absorb the equal and opposite polarization).
Some drink at the fountain of knowledge. Others just gargle.
unless it is *non-local* then this is just clever re-arrangement of non-teleported light wave (aka photon)
this research is not what it purports to be...it's not like a "transporter" in Star Trek at all
here's more on non-locality: http://en.wikipedia.org/wiki/N...
Thank you Dave Raggett
Every time Scotty beams somebody up, what he is really doing is annihilating the person and replacing him with a copy of himself that will believe itself to be the original. So the original crew of Starship Enterprise are all dead and replaced by copies, and many of those copies have been subsequently obliterated and replaced by copies of the copies, and so on and so forth.
Thank god this requires more equipment and ability than some freak can cook up in his basement. Imagine teleporting ebola to an enemy nation. If one could release several deadly viruses into an enemies home there would be some assurance of death. HIV, ebola, TB, and Malaria all infested into a home environment with a touch of anthrax and I think we could count on a lethal result. Teleportation gives a whole new meaning to germ warfare.
Teleportation of pork fried rice directly into my stomach
s/years/times $ more expensive/
Agreed. Some researchers, apparently to obtain funding, redefine entanglement effects as teleportation. Much cooler sounding.
I know that you're a loon, but I'd just like to point out that ebola is not a small virus - it's pretty big as viruses go. (800 - 1000 nm, cf 30 - 300 nm for typical viruses)
Watch this Heartland Institute video
they aren't teleporting anything. they're cloning. and then killing the poor poor photo.
I wonder, could the already know technology be used for faster than light communication ? (quantum state on, state off, state on state on, etc like bits on a wire)
blindly antisocialist = antisocial
They need to replicate and distribute. Find the idea that they can benefit from their vectors in novels ways will only be of opportunistic value to them.
They only flew at night. With the lights off. In stealth mode. Noone knew they were there.
-- Alex Chiu
But what if the Chinese themselves invent teleportation? What then?!
If you can teleport something as large as a virus then you can probably also fiddle with the data in between and are probably a substantial way toward arbitrarily assembling various forms of matter (i.e. molecular assembly), at which point you basically have a 3D printer from start treck.
The spin of a photon is a boson is always 1. That's not too hard to transmit. Approximately 0 bits are needed. Furthermore, the momentum of a photon is always h\nu, with \nu the frequency. So if you know the frequency of a photon, you also know its momentum, with another 0 bit to transmit. Finally I don't think a photon can have an orbital quantum momentum. Electrons can have those. That is unless things have changed since I last took a class on quantum mechanics.
In other words the summary is the worst I've seen in a long time.
what a crock of shit. I love that random "and small viruses" bollocks at the end, it reminds of the news report the other week about prehistoric germs potentially frozen in the ice near some random siberian village or some shit, and with the global warming these could get out, and "possibly cause a world ending epidemic".
What do you mean "data in between"?
I was given to understand that there is no in between at the quantum level. That it would be an instantaneous event regardless of distance.
speaking as a defense contractor ... sad to learn that apparently 100 years from now consumers will be running java applets hosted by 400mhz Solaris 9 servers. :(
Explain this to the dumb folks (like me). I thought frequency was a property of a wave, which involves multiple photons. How does a single photon have a "frequency" which I thought denotes at what inteverals multiple photons pass by.
I doubt that is possible.
First, the energy of the photon is related to its frequency. Teleporting that would mean you instantly transfer energy.
What happens to the original source photon, would it in reverse get the frequency of the target? So at least the law of conversation of energy is honoured?
Is it even possible to entangle two photons with different frequencies? I'm only aware about entangling experiments where the photon sources are lasers (all photons have the same frequency).
Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
.begin gallows humor.
Great... Right now we have to worry whether Ebola will mutate to be airborne; at which point you wont be able to be the the room with a sick person. In a few years we may have to worry that Ebola will mutate to tranport itself... Then nowhere will be safe.
(Yes, I know it doesn't work that way.)
McFly777
- - -
"What do people mean when they say the computer went down on them?" -Marilyn Pittman
They only flew at night. With the lights off. In stealth mode. Noone knew they were there.
That's why Herman's Hermits survived so long: omniscience.
Jesus was all right but his disciples were thick and ordinary. -John Lennon
Yeah. What goombah99 said.
Because... you wouldn't download a car!
"Last night everything in my apartment was replaced with an exact duplicate"
does teleporting a virus sound like a bad idea to anyone else?
Is anyone else thinking "quantum object oriented programming"?