Quantum Communication?

Companion Cube · Post by **Companion Cube** » 2003-02-19 01:18pm

I found this a few minutes ago, and I thought people on the board might be interested...

Alferd Packer · Post by **Alferd Packer** » 2003-02-19 02:00pm

Kinda makes me wish I'd picked a physics major instead of CS. Stuff like this is fascinating.

Companion Cube · Post by **Companion Cube** » 2003-02-19 02:02pm

Yep. Now, if they can think of a way to make a Quantum Internet connection, then i'll be happy.

Alferd Packer · Post by **Alferd Packer** » 2003-02-19 02:06pm

3rd Impact wrote:Yep. Now, if they can think of a way to make a Quantum Internet connection, then i'll be happy.

"Fucking lag! Look at this, my ping is 10!"

"Where are you playing from?"

"The moon."

"Aw, geez, that DOES suck."

...or something like that.

Companion Cube · Post by **Companion Cube** » 2003-02-19 02:10pm

FFS! I can't believe -40 is the lowest this POS connection can go!

Specialist · Post by **Specialist** » 2003-02-19 02:44pm

Alferd Packer wrote:Kinda makes me wish I'd picked a physics major instead of CS. Stuff like this is fascinating.

I feel that same way. I would have like to take Physics but I fine the work inbetween unbearable.

Cap'n Hector · Post by **Cap'n Hector** » 2003-02-19 04:28pm

I've been attemting to write SF that uses this tech...it's a great comunication device because we can _do it_ and may be able to make it useful...

paladin · Post by **paladin** » 2003-02-19 04:40pm

Cap'n Hector wrote:I've been attemting to write SF that uses this tech...it's a great comunication device because we can _do it_ and may be able to make it useful...

There was a sci-fi book series called "WarStrider" that used a similiar techique for long distance communication.

Exonerate · Post by **Exonerate** » 2003-02-19 08:08pm

paladin wrote:
Cap'n Hector wrote:I've been attemting to write SF that uses this tech...it's a great comunication device because we can _do it_ and may be able to make it useful...
There was a sci-fi book series called "WarStrider" that used a similiar techique for long distance communication.

There are a bunch of Sci-fi books which employ quantum entanglement for FTL communications... I think the Ender's Game series did so as well.

Shinova · Post by **Shinova** » 2003-02-19 08:16pm

So...they transported photons without destroying them, eh?

How bout eventually protons? Neutrons? Electrons?

You know where I'm getting at.

*Teleports away in a blue shimmer*

kojikun · Post by **kojikun** » 2003-02-19 08:53pm

I think you all need o realise that teleportation of information occurs at c.

Also, you must remember that entanglement requires the particles to be entangled together and once you unentangle them, thats it. So if you can only transmit through a particle once, then you need one particle per bit. Downloading an mp3? be prepared to pay thousands for the entangled particles.

Thats also assuming that entanglement is real. it still sounds like bullshit. "if you entangle two particles then seperate them, if you look at one, the other is the opposite!" thats like saying "if you flip a coin and look at one side, the other side will be the opposite!" well no shit. its not as if you changed anything, you just discovered the state and counterstate through assumption. But if it is real.. well then you gotta figure out how to control it.

Durandal · Post by **Durandal** » 2003-02-19 09:34pm

3rd Impact wrote: FFS! I can't believe -40 is the lowest this POS connection can go!

LOL. You'd be seeing stuff before it took place. Even the admin would be jealous.

Pu-239 · Post by **Pu-239** » 2003-02-20 03:28am

More practical is unbreakable encryption for syncronized generation of random numbers, for use in a one-time pad. The key (one of the entangled particles) would only have to be physically transferred once.

SyntaxVorlon · Post by **SyntaxVorlon** » 2003-02-20 07:57am

paladin wrote:
Cap'n Hector wrote:I've been attemting to write SF that uses this tech...it's a great comunication device because we can _do it_ and may be able to make it useful...
There was a sci-fi book series called "WarStrider" that used a similiar techique for long distance communication.

They did this in the His Dark Materials series. They made a lodestone "telegraph" that could communicate with other people in another universe, and given that radio signals can't go through the subtle knife's holes, this is a feat of quantum comms. They were also small enough for 12 inch tall people to carry about.

Pu-239 · Post by **Pu-239** » 2003-02-20 02:32pm

It won't work. How will you modulate it?

Pu-239 · Post by **Pu-239** » 2003-02-22 03:03am

Why do I alway's kill threads?

Spanky The Dolphin · Post by **Spanky The Dolphin** » 2003-02-22 03:12am

Because you're a childish anti-"M$" loser and nobody likes you?

(j/k)

Pu-239 · Post by **Pu-239** » 2003-02-23 12:46am

*yells*
MOD!, please delete Spanky's flamefest inciting spam. He has nothing productive to say.