https://hackerpaper.kaipfister.de/p/1312.7182/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=12936419urn:hackerpapers:mention:1312.7182:12936419Sat, 12 Nov 2016 03:21:00 GMT<p>The real evidence of this is from the last experiment under &quot;Sequential Experiments&quot;. Essentially, you only select particles with spin-up in the z direction, then you select particles with spin-up in the x direction. So the resulting particles should be up in both the z and x direction. But if you measure in the z direction again, you find an equal distribution in up and down, indicating that you can&#x27;t simply treat the spin as both pointed in the x and z direction, and that measuring in the x direction has scrambled the previously well-defined z direction. This experiment shows that measuring…</p><p><a href="https://hackerpaper.kaipfister.de/p/1312.7182/">Paper and discussion history</a>. A mention is not an endorsement.</p>cond-mat.quant-gas