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# Quantum Telecloning Demonstrated?

#### ScuttleMonkey posted more than 8 years ago | from the nosey-people dept.

195

An anonymous reader writes "According to Physorg eavesdropping on a quantum encrypted link can now be done without detection. From the article: 'The scientists have succeeded in making the first remote copies of beams of laser light, by combining quantum cloning with quantum teleportation into a single experimental step. Telecloning is more efficient than any combination of teleportation and local cloning because it relies on a new form of quantum entanglement - multipartite entanglement.' There is also a PDF of a related paper available here for background material."

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FP

### Oh (-1, Flamebait)

#### Anonymous Coward | more than 8 years ago | (#14757976)

That explains everything.

### What it all really means (-1, Troll)

#### Anonymous Coward | more than 8 years ago | (#14757992)

What it means is that never-discussed capabilities of submarines to tap fibre optic cables at the bottom of the ocean is true.

You can tap fibre without the other party knowing. What I question, is how long has this been known at the NSA?

I hear the faint wisper of black helicopers in the distance. NOT AGAIN!!!!

NO CARRIER

### Re:What it all really means (2, Funny)

#### shokk (187512) | more than 8 years ago | (#14758266)

DAMMIT! Now I have encrypt my files all over again!
Hopefully that Quantum Pretangle Cloning will stay unscannable.

### Ummm... (-1, Offtopic)

#### node159 (636992) | more than 8 years ago | (#14757997)

ZOMGUH4>0RDMYINTERWEB!!!!

### I really dig this stuff... (5, Funny)

#### Mark_Uplanguage (444809) | more than 8 years ago | (#14758002)

but I'm starting to get discouraged now that the already hard to grasp concepts of quantum mechanics are being infused with new more complicated forms. In the end I just want to know if we can teleport ourselves cause I'm tired of my f'ing commute.

### Re:I really dig this stuff... (4, Funny)

#### websaber (578887) | more than 8 years ago | (#14758064)

I remember the good old days when unbreakable encryption would stay unbreakable for 15 years. Now it's being broken before it is even released.

### Well, don't they need a pre-publication license? (1)

#### CDMA_Demo (841347) | more than 8 years ago | (#14758165)

if you remember: http://tinyurl.com/ozw7f [tinyurl.com]
another karma abuse.

### Re:I really dig this stuff... (3, Funny)

#### skoaldipper (752281) | more than 8 years ago | (#14758230)

Various scenarios and their solutions!

By no means can two perfect copies of people be allowed to exist at the same time. It would rip apart the very fabric of space time as we know it. Therefore...

1. Materialize two pugil sticks into the data stream, one for each person. Let them duke it out American Gladiator style. Loser gets fed into a tree shredder (provided by Soylent Green Technologies).

2. Insert shark teeth and monkey tail DNA into the copy. He would be slightly different, and slightly cooler too. Men, otherwise wasteful empty beer cans now provide roughage as well. Ladies, flexible long second appendage for you. Think about it. 'Nuff said. Order preserved.

### Re:Hmm, how seredipitous... (1)

#### eclectro (227083) | more than 8 years ago | (#14758384)

The opening blurb about Captain Kirk only reinforces untrue stereotypes about the potential of quantum teleportation.

That sounds like Captain Kirk's evil twin speaking.

### Re:Hmm, how seredipitous... (1)

#### diqrtvpe (929604) | more than 8 years ago | (#14758465)

If journalists were physicists, we would be teleporting around willy-nilly by now in our flying cars with interstellar capabilities. Of course, then all the freelance physicists embedded in active units would be constantly complaining about the divergence of their field, so it's probably a good thing things are the way they are (sorry, I've been thinking too much about E&M recently, couldn't restrain myself).

### Not without detection? (1)

#### the_brobdingnagian (917699) | more than 8 years ago | (#14758214)

According to the article: "Quantum cryptographic protocols are so secure that they can not only discover tapping but also where and how much information is leaking out. Now, using telecloning, the identity and location of the eavesdropper can be concealed." Does this mean the eavesdropping can still be detected, but no information about the eavesdropper can be obtained?

### No-Cloning Theorem (0)

#### Anonymous Coward | more than 8 years ago | (#14758220)

Somehow I doubt this is cloning without disturbing the original state...

http://en.wikipedia.org/wiki/No-cloning_theorem [wikipedia.org]

### Dammit (1)

#### budgiebottom (920743) | more than 8 years ago | (#14758236)

I just finished compiling Quantum encryption support last week, now I'll have to recompile my kernel. Any word on when the patch will be released? Which repository should I use?

### no fundamental rules of QM broken (1)

#### mrpeebles (853978) | more than 8 years ago | (#14758238)

"Quantum cryptographic protocols are so secure that they can not only discover tapping but also where and how much information is leaking out. Now, using telecloning, the identity and location of the eavesdropper can be concealed."
So as far as I can tell, the parties sending and receiving the message still know that their is an eavesdropper, just not
"their identity and location." I am sure that heisenberg is still fine, a quantum state still cannot be cloned, and information cannot be sent faster than the speed of light. If this was the case, this would be the headline, and I'm guessing it would be on cnn headline news. (Maybe the world isn't that nerdy though... ;-))

### Carefull... (1)

#### turtleAJ (910000) | more than 8 years ago | (#14758247)

I don't know if you guys read this:

But the MWOCPT also has patents on this field...

Please, our patience is running short... we don't want to shut-off the Moon's Dark Side stabilizing gravity amplifiers... Or you thought the Moon always faced this way becuase of nature???
Arghhh,

-Stitch
LOCATED at MilkyWay.Sol.3 (aka, Planet Earth)
eMail slashstich@yahoo.com

### Other news (1)

#### wetfeetl33t (935949) | more than 8 years ago | (#14758269)

So let me get this straight

There is a security hole in technology that hasn't even been developed yet?
Isn't someone gonna put a patch out for it?

### I have a long distance quantuum eavesdropper (2, Funny)

#### Anonymous Coward | more than 8 years ago | (#14758308)

On average, I'm able to correctly decode 50% of the bits.

### In Soviet Russia... (1)

#### Gravis Zero (934156) | more than 8 years ago | (#14758374)

In Soviet Russia, we don't have first laser.

### Quantum Encryption (1)

#### dilchill (913547) | more than 8 years ago | (#14758399)

This article is NOT about quantum cryptography at all. Telecloning is related to quantum entanglement which is behind basic quantum cryptology, but they are two completely different subjects. Also, we don't even have basic quantum computers yet...I think it will be a long time before we're teleporting people.

### I wonder.... (0)

#### Anonymous Coward | more than 8 years ago | (#14758402)

I wonder if this will make porn faster to get um.....

### ScuttleMonkey didn't read TFA, clearly... (1)

#### YU Nicks NE Way (129084) | more than 8 years ago | (#14758445)

The submission is simply wrong: the article says
"Quantum cryptographic protocols are so secure that they can not only discover tapping but also where and how much information is leaking out. Now, using telecloning, the identity and location of the eavesdropper can be concealed."
, but the summary says "eavesdropping on a quantum encrypted link can now be done without detection", which is exactly the opposite.

### Calvin's work? (2, Funny)

#### rgaginol (950787) | more than 8 years ago | (#14758466)

Are we sure that this story wasn't posted by Calvin as his latest school assignment? If you have a look at the PDF with edits left in, you'll see words like "Transmogrify" crossed out all through it. I'm sure Hobbes could have put him up to it.

### Quick summary of quantum theory (2, Funny)

#### saboola (655522) | more than 8 years ago | (#14758514)

Theorizing that one could time travel within his own lifetime, Dr. Sam Beckett stepped into the Quantum Leap accelerator and vanished .... He woke to find himself trapped in the past, facing mirror images that were not his own and driven by an unknown force to change history for the better. His only guide on this journey is Al, an observer from his own time, who appears in the form of a hologram that only Sam can see and hear. And so Dr. Beckett finds himself leaping from life to life, striving to put right what once went wrong and hoping each time that his next leap will be the leap home.

"Oh boy.."

### IIRC (2, Funny)

#### alx5000 (896642) | more than 8 years ago | (#14758517)

That reminds me of the Windows XP anticopy scheme. Long before it was even released publicly, the crack had already hit the street. Sweet.

### Ah, yes! (3, Funny)

#### sonofagunn (659927) | more than 8 years ago | (#14758531)

I've been quantum telecloning via multipartite entanglement for years with my ultra-flux quasi capacitordangle jimmy-rigged to a quanto-farscope for multi-resolution ohmage. I built this with the latest in Lego technology!

### quantum teleportation (0)

#### Anonymous Coward | more than 8 years ago | (#14758570)

So, when do we send a satellite off into space with a "quantum receiver" on board? We could send it to Pluto (the planet) and have it blow up or do something drastic (you know, for the effect) which would be visible from Earth once it gets back to us at the speed of light.

### Missing the point (1)

#### Belseth (835595) | more than 8 years ago | (#14758665)

It's a quantum party line!

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