"The researchers generated three distinct time-bin qubit states both deterministically and randomly using a self-stabilized encoder that converts polarized single photons from a telecom C-band quantum dot."
I was all good up to, and including, the word "distinct".
https://scitechdaily.com/quantum-breakthrough-unhackable-keys-sent-over-120-km-using-quantum-dots/
A quantum mechanics paper details the possibility of a world without global causal order. Here's my summary and notes!
https://qubit-architect.pages.dev/posts/2026/no-casual-order/
In my last few posts I have been summarizing papers I’ve read into digestable components, and I’ve hit a point where I cannot faithfully deconstruct them perfectly. So I’m having writer’s block at the moment for my next post. So I’m trying a new concept: publishing what inspired me as notes! Quantum Correlations with No Causal Order As always, all credits to the authors, all mistakes are my own. This paper1 presents a look into the weirdness of quantum mechanics that I’ve felt missing since quantum teleportation, the notion of causal structure or lack thereof. In short, with only local quantum mechanics, you don’t need to assume the world has global cause-effect structure.
Türkiye'nin İlk Kuantum Bilgisayarı QuanT
BIP 361 is a proposal on what to do with bitcoin if Quantum Computers are buildable.
Interesting abstract question even if you dislike bitcoin or prefer the US controlled Breton-woods petrodollar or using bank-debt charged at interest for money or whatever.
The problem at hand is that coins are unlocked by cryptography which a big enough quantum computer could break.
Sure, you can invent a quantum-proof key type, but all the existing coins have to be unlocked and moved into those types of addresses before that quantum computer is invented.
There is enough space on the blockchain to do that over a few years, but a lot of keys are lost. Maybe millions of bitcoins in addition to the original million or so coins mined by Satoshi which have never moved with keys presumed burned or owner dead.
That means handing maybe 10% or more of the total coins to Quantum Hackers with presumed evil intent.
Can the node-runners and miners who make up the network do anything about that?
BIP 361 suggests forever locking any coins not moved into quantum-proof addresses within five years.
If you've been in a coma or in jail with the seed-phrase memorized you're going to get released and find your bitcoin frozen by the Bip-361 cabal.
But then if bip 361 and similar fails, you're just going to wake up and find a quantum hacker has taken them instead.
You ain't gonna recover your coins from your memorized seed-phrase either way.
Some bitcoins are literally time-locked, prevented from moving for ten years. They are stuffed either way and can't move into safe addresses even if they still have the keys.
Remember that "Some quantum hacker" isn't a furry kid in a bedroom or the organized crime syndicates. It's Google or the US Government or a university or Cern or something.
Do you want to lock the coins, or give them to a random state or state sized corporate actor?
It's all very well being sad after your timelocked coins are taken by a protocol change, but its just as sad to have them taken by the US Government.
What would the US government do if they took Satoshi's coins? Probably use them to back a new satoshi dollar? It becomes that Bitcoin Strategic Reserve by default.
Agenzia Nova: Business news: Germania, Quantum annuncia due joint venture con Ucraina
18 apr 03:00 - (Agenzia Nova) - Il produttore tedesco di droni Quantum Frontline Industries sta ampliando ulteriormente la cooperazione con... (Geb)
Business news: Germany, Quantum Announces Two Joint Ventures with Ukraine
18 Apr 03:00 - (Agenzia Nova) - The German drone manufacturer Quantum Frontline Industries is further expanding its cooperation with... (Geb)
Our paper “PQC‑Enhanced QKD Networks: A Layered Approach” from QCNC Kobe 🇯🇵 is now on arXiv: https://arxiv.org/abs/2604.05599
We show how WireGuard + QKD + PQC provide scalable end‑to‑end security over multi‑hop Quantum QKD networks – no trusted node, no key forwarding, no SDN,... needed – and introduce Arnika – Quantum secure VPN: https://github.com/arnika-project/arnika
#Quantum #Communication #QKD #PQC #WireGuard #ETSI014 #EUROQCI
We present a layered and modular network architecture that combines Quantum Key Distribution (QKD) and Post-Quantum Cryptography (PQC) to provide scalable end-to-end security across long distance multi-hop, trusted-node quantum networks. To ensure interoperability and efficient practical deployment, hop-wise tunnels between physically secured nodes are protected by WireGuard with periodically rotated pre-shared keys sourced via the ETSI GS QKD 014 interface. On top, Rosenpass performs a PQC key exchange to establish an end-to-end data channel without modifying deployed QKD devices or network protocols. This dual-layer composition yields post-quantum forward secrecy and authenticity under practical assumptions. We implement the design using open-source components and validate and evaluate it in simulated and lab test-beds. Experiments show uninterrupted operation over multi-hop paths, low resource footprint and fail-safe mechanisms. We further discuss the design's compositional security, wherein the security of each individual component is preserved under their combination and outline migration paths for operators integrating QKD-aware overlays in existing infrastructures.
🎶 Lana Del Rey performs the main theme for 007 First Light, co-written with veteran composer David Arnold, who scored five Bond films, including "Die Another Day" and "Quantum of Solace".
The track is already on Apple Music and Spotify. The game launches on May 27 for PC (Steam, Epic), PlayStation 5 and Xbox Series; Switch 2 follows this summer. The release includes Russian text localization. LISTEN
#SteamAndEpic #PlayStation #Another #Quantum #Spotify #Russian
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