Advance opens door for secure quantum applications without specialized infrastructure

You are viewing a single thread.
View all comments View context
30 points
*

Nope, quantum entanglement can’t enable FTL communication. “Real time” still involves lightspeed lag.

What it does is allows random bits of information to be transmitted in an entangled state. You send an entangled pair of photons, and find out afterwards who got a 1 or a 0 when the photons are observed at either end. They call it ‘quantum teleportation’ because both ends know what the other got, and the information about who got what can’t be intercepted without disrupting the enganglement.

Once they can figure out how to preserve that uncertainty through repeaters, switches, and routers, then we can have a quantum internet that uses encryption based on shared quantum random numbers. It’s likely to be necessary soon since quantum computers might only be a few years from breaking current common encryption techniques.

permalink
report
parent
reply
2 points

I also want to clarify, we can create asymmetrical encryption algorithms that are quantum resistant but not quantum themselves

Quantum encryption probably won’t be in mass use anytime soon, but for extra sensitive applications

permalink
report
parent
reply
5 points

Thank you for your explanation.

permalink
report
parent
reply
0 points

Yup, definitely. Took the words right out of my mouth.

permalink
report
parent
reply

Technology

!technology@lemmy.world

Create post

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


Community stats

  • 15K

    Monthly active users

  • 6.7K

    Posts

  • 153K

    Comments