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You can't test if quantum uses complex numbers

news.ycombinator.com Craig Gidney 2025-09-17 18:58:00

In 2021, Renou et al published the paper “Quantum theory based on real numbers can be experimentally falsified” in Nature. It caused a decent sized splash at the time. A quick search revealed articles in Quanta and Scientific American and APS News, as well as a talk at QIP 2022. In this post, I’m going to explain why the title of the paper is wrong. The Goal Before we get going, I need to warn you away from a common misunderstanding of Renou et al’s claim. Renou et al are NOT claiming that it

Topics: phase prime quantum rangle real
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NASA Told to Overhaul Its Plans to Replace the International Space Station

gizmodo.com Passant Rabie 2025-11-28 20:27:23

For nearly 30 years, the International Space Station has played orbital home for astronauts from all over the world, but its time is running out. Slated to retire in 2030, NASA is aiming to replace it with a privately-run station that can host its astronauts in space when needed. And now under pressure to get a new station up and running fast and within a slashed budget, NASA’s current head—U.S. Transportation Secretary Sean Duffy—is completely overhauling the agency’s plans to replace the ISS.

Topics: commercial nasa phase space stations
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Watch This Documentary About ‘Star Trek: Phase II’ and See What Could’ve Been

gizmodo.com James Whitbrook 2025-12-03 10:40:26

The existence of Star Trek: Phase II—the plans for a Star Trek continuation series in the mid-1970s that eventually gave way to Star Trek: The Motion Picture—has been known for a very long time at this point. We’ve seen concept art, we’ve seen story ideas, and we’ve seen it for long enough to see how those nuggets have gone on to influence the Star Trek that we would go on to get for another 50 years. And yet, there’s still plenty to enjoy in this new documentary about the bumpy road Star Trek a

Topics: ii phase star trek ve
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Ask HN: What trick of the trade took you too long to learn?

news.ycombinator.com Unknown 2025-12-06 08:39:59

Every week for the last 3 months I’ve learned a new trick when it comes to getting whatever LLM I’m using at the time to produce better output. That’s my trade, but lots of HNers have more interesting trades than that. In my case, only recently I learned the value of getting an LLM to write and refine a plan.md architecture doc first, and for it to break that doc down into testable phases, and then to implement phase by phase. Seems obvious in hindsight. But it took too long to learn that that

Topics: doc learn learned llm phase
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Microsoft is open sourcing Windows 11's UI framework

news.ycombinator.com Taras Buria 2025-12-07 16:52:40

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works Microsoft has plenty of open-source projects, and these days, the company is much more open to community contributions. Still, plenty of code remains closed-source, and the company constantly receives more requests to open it. One of them is WinUI, Windows 11's user interface framework. While Microsoft is not opening it fully yet, the company shared details about plans for the next six months,

Topics: github locally microsoft open phase
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Two Birds with One Tone: I/Q Signals and Fourier Transform

news.ycombinator.com Qasim Chaudhari 2025-12-16 04:09:04

When a new member arrives at the Signal Processing Club, this is what they find at the club gate: I/Q signals. Perhaps a secret plot to keep most people out of the party? Some return from here to try another area (e.g., machine learning, which pays more and is easier to understand but less interesting than signal processing). Others persist enough to push the gate open for implementation purposes (even a little understanding is sufficient for this task) but never fully grasp the main idea. So w

Topics: complex cos omega phase signal
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Integrated photonic source of Gottesman–Kitaev–Preskill qubits

news.ycombinator.com Larsen 2026-01-24 23:52:38

Here we provide experimental details on each major component in this experiment: the laser subsystem, photonic integrated chip, PNR detectors for state heralding and the homodyne detection system used for state tomography. Further details can be found in the Supplementary Information. Laser system The laser subsystem is composed of five lasers: two lasers (P1 and P2) for driving the dual-pump SFWM process that generates squeezing, a local oscillator laser used to perform homodyne detection and

Topics: laser local oscillator phase state
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This Once-a-Month Ozempic Rival Just Delivered Big Results

gizmodo.com Ed Cara 2026-02-15 10:45:22

Having to take Ozempic or other weight loss drugs can be a real pain in the ass, with users often having to jab themselves once each week. In newly released clinical trial data, Amgen’s once-monthly experimental drug MariTide performed as well as or even better than the existing blockbuster GLP-1 medications semaglutide and tirzepatide. People taking MariTide consistently lost more weight than those on placebo, with some losing up to 20% of their baseline weight over a year’s time. Amgen is mov

Topics: maritide obesity people phase weight
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Former Wall Street analyst building market AI on why stock pickers won't go extinct

cnbc.com Eric Rosenbaum 2026-03-16 14:58:19

watch now Wall Street isn't immune from the plot line that has generative AI resulting in wholesale knowledge worker replacement. A new tool from AlphaSense, called Deep Research, won't provide any comfort. The generative AI agent functions like a team of analysts operating at what AlphaSense calls "superhuman speed," generating research and market insights, and building investment-grade briefings. But Jack Kokko, AlphaSense CEO and a former Morgan Stanley analyst and Wharton School MBA, isn't

Topics: alphasense analyst deep kokko research
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