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Here's your simple go-to explanation: The quantum internet is a buzzword to extract research money from EU programs. It has no relevance whatsoever for the real
by hannob 8y ago
Here's your simple go-to explanation: The quantum internet is a buzzword to extract research money from EU programs. It has no relevance whatsoever for the real internet.
- raverbashing 8y agoOr, more generically, whenever adding for government grants, use the buzzwords of the day Today it could be block chain, yesterday it was telemedicine, etc
- consp 8y agoConsidering the article is from the press office it is full of buzzword bingo words and meant to be that way. The real article (haven't found a preprint yet) should be far more scientific and worthy of notice. The 'internet' won't benefit directly, today, but might somehow in the future. As with all fundamental research: we don't know yet. Let's not be judgemental beforehand.
- Faaak 8y agoWouldn't light-speed internet be useful ? I would think that HFT firms would be interested in them
- coldtea 8y agoWe already have "light-speed internet" or close enough. Signals in cables travel at (approximately) light speed (for the medium, which is not vacuum). And we do have wireless EM signals and fiber optics cables as well...
- Faaak 8y agoThe velocity factor is around 2/3 in optical fiber. That's slow to HFT firms. For example, the delay compared to vacuum/c would be of of 2ms for a 1000km link. And that does not take into account fiber repeaters or microwave links
- DmenshunlAnlsis 8y agoYou’d basically need a 1000km vacuum chamber to achieve that, which would be insanely expensive and an engineering miracle. I’m not even getting into what you’d be using as a transmission medium, because the vacuum chamber is prohibitive enough.
- ttsda 8y agoYou could use LEO satellites, add a few km up and down but you have way less hardware to pass through.
- DmenshunlAnlsis 8y agoThat’s a good point, the difference between vacuum and atmosphere isn’t so significant, but then it’s not really a new tech or “lightspeed internet” it’s just a satellite link.
- ttsda 8y agoWith the addition of satellite-to-satellite optical connections, which will greatly improve latency and bandwidth.
- DmenshunlAnlsis 8y agoIf SpaceX pulls off their swarm of telecom satellites, we might get to see how it really works in widespread practice. Exciting prospect!
- ttsda 8y agoIndeed. And what I'm most interested in is all the cash they're dumping into commercial phased-array antennas. If they manage to scale enough to get them to a low enough price they will be amazing for all sorts of other stuff.
- 8y ago
- colordrops 8y agoI was under the impression that quantum entanglement could provide perfect privacy across a connection, as it would be obvious whether the line communication was intercepted.
- lallysingh 8y agoBut you'd need an entangled pair with everyone you want to communicate with.
- whatshisface 8y agoYou'd just have to organize daily deliveries from the Entanglement Man.
- krapp 8y agoChances are the Entanglement Man makes 12.00/hr, has to provide his own car and pees into a bottle to make quota.
- bArray 8y agoNo, you would just need to get an entangled key from a distributor. Once you can communicate with one well connected and trusted actor, you're good to go. Think more like web security certificates...
- lallysingh 8y agoBut how do you know you have the right entagled peer? How's that different than any other out of band key exchange?
- n4r9 8y agoThat's true for the E91 protocol, but for BB84 you only need a (public) quantum channel through which Alice can send states to Bob.
- leetbulb 8y ago
- merinowool 8y agoEU programs are forcibly funded by a tax payer, paying obscene amount of tax. I have 0 respect to companies participating in such programs.
- dschuetz 8y agoYou forgot to mention Quantum Cloud Computing. The first killer feature of the new and fantastic Quantum Internet.
- letsgetphysITal 8y agoI think you mean Quantumcurrency. Guaranteed to be cryptographically secure, and you'll only know if you own some by collapsing the waveform.