Jump to content



Photo

Quantum Entanglement - instantaneous transfer of information?


  • Please log in to reply
22 replies to this topic

#16 PsYcHoKiLLa

PsYcHoKiLLa

    Views expressed are not necessarily those of the management

  • 1,319 posts
  • Joined: 04-February 07
  • Location: Over there somewhere
  • OS: Windows 8
  • Phone: LG Nexus 4

Posted 24 September 2012 - 18:38

How can anything ever hope to go faster than the speed of light then? How could something like warp drive become reality?


We CAN change the laws a' physics captain!!

http://www.sliceofsc...act-warp-drive/


#17 Routerbad

Routerbad

    Neowinian Libertarian

  • 852 posts
  • Joined: 18-April 06
  • Location: Oceanside, CA
  • OS: W8
  • Phone: WP7.5

Posted 24 September 2012 - 18:39

There is no "warp drive tech", it's all just maths at the moment.


They are working with scaled tech to warp space-time 1/10,000,000 parts. It's just math at the moment, but the tech is slowly being developed.

#18 Stetson

Stetson

    Neowinian Senior

  • 2,869 posts
  • Joined: 04-October 06

Posted 24 September 2012 - 18:49

So if a warp drive system does allow a net result of faster-than-light travel (without an object actually travelling through any space faster than the speed of light of course), but we never find a way to transmit pure information faster than the speed of light, then we could conceivably end up with a 'sneaker net' communication system, whereby a distant colony would send a message back to earth via a small probe that could move faster than a radio signal by use of a warp drive.

#19 Astra.Xtreme

Astra.Xtreme

    Electrical Engineer

  • 8,311 posts
  • Joined: 02-January 04
  • Location: Milwaukee, WI

Posted 24 September 2012 - 18:52

Well nothing can go faster than C because "things" have mass. And accelerating any mass above C requires infinite energy. There's really no exception to that math/physics/nature.

Unless there is some sort of possibility of "converting" the mass to zero using neutral particles. Though, that might just cause everything to annihilate. Even so, you could only get to C, but still not faster. Going faster would require negative mass.

#20 vincent

vincent

    Neowinian Senior

  • 21,227 posts
  • Joined: 19-May 03
  • Location: W. Richland, WA

Posted 24 September 2012 - 21:01

Mass-energy equivalence

Posted Image

#21 neoadorable

neoadorable

    Neowinian Senior

  • 10,466 posts
  • Joined: 01-August 05
  • Location: Flyover Country/Pacific Isle

Posted 26 September 2012 - 14:24

quantum entanglement is real physics, it can be done. but doesn't it mean something regarding time travel? anyway, thanks for starting this thread, it's an interesting topic, i've always been a fan of the space ansible :)
i doubt it can be done for massive objects like a spaceship, but for comms..very likely. in Avatar they use it for low bit rate comms, but the manual says the transmission energy costs mean even in the mid 21st century they can do little more than tweet using the ansible :D

#22 Phouchg

Phouchg

    has stopped responding

  • 5,689 posts
  • Joined: 28-March 11

Posted 26 September 2012 - 19:28

Posted Image

Because a tachyon always moves faster than light, we cannot see it approaching. After a tachyon has passed nearby, we would be able to see two images of it, appearing and departing in opposite directions. :shiftyninja:

#23 Farstrider

Farstrider

    The Clash

  • 6,311 posts
  • Joined: 16-March 03
  • Location: Somerset West, Cape Town, SA
  • OS: Arch Linux

Posted 26 September 2012 - 19:51

Scientist John Singleton made a machine in 2008 called a polarization synchrotron and presented the work and results to the American Astronomical Society:

Most people think Einstein said that nothing can travel faster than the speed of light, but that's not really the case, Singleton said. Einstein predicted that particles and information can't travel faster than the speed of light — but phenomenon like radio waves? That's a different story, said Singleton, a Los Alamos National Laboratory Fellow.

Singleton has created a gadget that abuses radio waves so severely that they finally give in and travel faster than light. The polarization synchrotron combines the waves with a rapidly spinning magnetic field, and the result could explain why pulsars — which are super-dense spinning stars that are a subclass of neutron stars — emit such powerful signals, a phenomenon that has baffled many scientists, Singleton said.

The concept of phenomenon traveling faster than light has been discussed in the back alleys of the scientific community since the 1970s, but observations were based on strange aberrations, like the distorted images of stars as they traveled near the speed of light, said Mario Perez, a Los Alamos scientist who worked with Singleton on the project.

"Radio astronomers found sources that looked like things were traveling faster than light, but they were not truly superluminal, like this is," Perez said.

"If you take a laser and shine it on the moon and swing it rather gently, for example, the spot on the moon travels faster than the speed of light," Singleton said. "If an effect can do that, it makes you wonder if you can do things with light to get the equivalent of a sonic boom." That's what the faster-than-light radio waves — more scientifically known as superluminal transmissions — do. They're the light version of a sonic boom.