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1. oliculipolicula · 1790380224 · focus · HN ↗

   "Insiders" (ahem why does OP think this is interesting ) chip in on the following and others? They seem standard, but I an likely wrong?

   1) frequency upconverted light with BBO generates photocurrents (But it doesn't seem like the measurement itself is "quantum-enhanced"? As I understand it the process generates entangled photon pairs?)

   2)etching gold with very mild chemicals (KI would be a health supplement after your nuclear apocalypse. The phosphoric acid with YBCO doesn't seem so bad either)

   3) <a href="https:&#x2F;&#x2F;www.colorado.edu&#x2F;conference&#x2F;bss&#x2F;media&#x2F;4149" rel="nofollow">https:&#x2F;&#x2F;www.colorado.edu&#x2F;conference&#x2F;bss&#x2F;media&#x2F;4149

2. pixelpoet · 1790461010 · focus · HN ↗

   I use mathematical jargon all the time, but I gotta admit, getting major Turbo Encabulator[0] vibes here :D

   [0] <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=Ac7G7xOG2Ag" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=Ac7G7xOG2Ag

   1. orbital-decay · 1790463006 · focus · HN ↗

      Electrons in superconductors form Cooper pairs that are theoretically predicted to break (depair) at a certain current. However it&#x27;s hard to observe because the other effects break superconductivity before you reach that current. They managed to circumvent this by sending the current in picosecond pulses, which is the novel part, and confirm the prediction. They did it for two types of superconductors with different mechanisms of action: classic low-temperature superconductors and modern high-temperature (YBCO).
3. hakken306 · 1790463052 · focus · HN ↗

   Found a much more readable summary for people who aren&#x27;t already physics grad students, but have some minor knowledge of superconductors.

   <a href="https:&#x2F;&#x2F;www.cui-advanced.uni-hamburg.de&#x2F;en&#x2F;research&#x2F;wissenschaftsnews&#x2F;26-09-24-depairing.html" rel="nofollow">https:&#x2F;&#x2F;www.cui-advanced.uni-hamburg.de&#x2F;en&#x2F;research&#x2F;wissensc...

   1. adrian_b · 1790492786 · focus · HN ↗

      The important practical achievement that enabled these measurements is that they have fabricated some custom photoconductive switches, which can generate extremely short electrical pulses, of a few picoseconds, when receiving laser pulses.

      The technology to generate ultrashort laser pulses is rather old, but it is difficult to generate electrical pulses at a similar time scale.

      They have also made a custom amplifier for the signals measured from the superconductor.

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