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Quantum Telecloning Demonstrated?
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."
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.
"The difference between stupidity and genius is that genius has its limits." -- Albert Einstein
I knew this was gonna happen. I kept telling everyone it was just a matter of time.
so now we can listen in on quantum encrypted... wait a second... that doesn't exist yet.
O well, must be the FBI getting an early start.
Have a nice day!
This issue is a bit more complicated than you think.
There IS NO Heisenburg Uncertainty Principal.
Unless there is a school named Heisenburg Uncertainty, which would be cool.
I just made that up, but the obvious corollary is this; If you don't want something to be known, don't say it!
Thank you very much, I'll be here all week. (Mostly because I have nowhere else to go.)
This issue is a bit more complicated than you think.
Most of the time, I at least read TFA and make a dumb comment. This time, I read TFA and just felt dumb.
Can some explain it and use real-world examples?
As a physics major who has taken the time to look over the paper (read: barely skimmed--I am a lazy college student afterall), I would just like to offer my sincere opinion of "HUh?"
I hope that will be helpful to other Slashdotters outside the field.
When things get complex, multiply by the complex conjugate.
Comment removed based on user account deletion
Now I can be screwed in 32 different states. Kinda like Madonna.
---
When you come to a fork in the road, take it! --Yogi Berra--
There is such a place, but the lesson plan is a nightmare.
Just as you think you know where your next lesson is you rush to get there to realise you've already missed it.
Finding out if the lecturers are still alive after opening the classroom door is an entirely different and wholey worrying scenario unto itself.
liqbase
smash.
I run: Windows, OS X, Linux, FreeBSD. Just because you have a hammer, doesn't mean everything is a nail.
We need to put a stop to this quantum cloning. It is immoral and wrong. Who knows where it might lead!
DAMMIT! Now I have encrypt my files all over again!
Hopefully that Quantum Pretangle Cloning will stay unscannable.
"Beware of he who would deny you access to information, for in his heart, he dreams himself your master."
On average, I'm able to correctly decode 50% of the bits.
Obviously no one is quite sure.
http://www.rootstrikers.org/
SCHRODINGER'S CAT FOUND HALF ALIVE
Quantum Theory Wrong
at least, half the cats are alive
You'd have to read the paper every day because it would be on the test.
Stock charts would be replaced by their formulae.
Articles would be published only after 6 month's peer review.
Articles would be written only after attaining an NSF grant.
The grant would in include USD$4 Billion for a 10-acre superconducting adjective collider (SAC) for smashing random words together in the hope of finding new, short-lived metaphors. Expected completion by 2018.
Oh that's nothing. You should hear about my visit to Hilbert's Grand Hotel...
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.
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.."
That reminds me of the Windows XP anticopy scheme. Long before it was even released publicly, the crack had already hit the street. Sweet.
My 0.02 cents
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!
Oh that's nothing. You should hear about my visit to Hilbert's Grand Hotel...
;-)
Dude! I love that place. They moved everybody out and gave me the front room