This is indeed very promising, but not necessarily a breakthrough yet. There's still the issue of operating temperature. The researcher said the next step is to try to get this to work with fancier superconductors that operate at 77K, which would "only" require liquid nitrogen cooling. If that is achieved, then I see this having real applications, but niche ones. More revolutionary applications would require room temperature, normal pressure superconductors, which AFAIK haven't yet been found, and might be possible at all(it's an open question). Even if they were found, there's of course also the question of whether the cost of those materials can be brought down enough to be worth the gains in efficiency etc.
This is exciting, don't get me wrong, but I'm always skeptical of these. "in the lab" in silicon is somewhat equivalent to "in mice" in biology. I was very excited about memristors back in '08 when they were first actually synthesized [1], but here we are, ~14 years later, and still no commercial viability. Producing something in a lab, and mass producing something in a foundry/factory are very different.


Paper: "The field-free Josephson diode in a van der Waals heterostructure"


> For instance, the use of superconductors instead of regular semiconductors might save up to 10% of all western energy reserves according to NWO.


> According to the Dutch Research Council (NWO), using superconductors instead of conventional semiconductors might save up to 10% of all Western energy reserves.

This publication needs an editor.

Super interesting result, but some of the things mentioned in the article are just plain wrong or grossly misrepresented. Not sure for example what they mean with "IBM mentions that without non-reciprocal superconductivity, a computer running on superconductors is impossible". RSFQ (Rapid single flux quantum) logic is based on Josephson junctions and works just fine up to many GHz, Prof. Likharev's group at SUNY / Stony Brooke developed these together with IBM, and RSFQ circuits are still being used in niche applications as well as quantum computing. The reason that they never replaced semiconductor-based computers is simply that they couldn't keep up with the rapid progress of those. In the 80s and 90s it was impressive that RSFQ devices could (theoretically) run at several 10s - 100s GHz, fast and efficient MOSFET transistors have much better characteristics and don't need costly cooling. For high-frequency applications there are HEMTs (high electron mobility transistors), which are often also easier to operate and manufacture than superconducting circuits. Also, no one managed to really scale RSFQ logic beyond a few 100.000 junctions.
Are we going to get a magnetic monopole out of this too?
I didnt read the article, but I think that adding the question mark to the title to mitigate tbe claim is a great idea!