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#qm — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #qm, aggregated by home.social.

  1. Wir haben uns erneut einem Audit unterzogen und bestanden – ohne Abweichungen!

    Die Akademie für wissenschaftliche Weiterbildung der TH Köln und das ZBIW bilden eine Qualitätsgemeinschaft. Gestern fand das Überwachungsaudit nach ISO 9001 statt – inklusive Interviews im ZBIW. Wir freuen uns, dass wir wieder zeigen konnten, dass unsere Maßnahmen zur Qualitätssicherung erfolgreich sind. 🎉

    #QM #Qualitätsmanagement #ISO9001 #Fortbildung #ZBIW #ThKoeln #Weiterbildung #Fortbildung #Library #Bibliothek

  2. Wir haben uns erneut einem Audit unterzogen und bestanden – ohne Abweichungen!

    Die Akademie für wissenschaftliche Weiterbildung der TH Köln und das ZBIW bilden eine Qualitätsgemeinschaft. Gestern fand das Überwachungsaudit nach ISO 9001 statt – inklusive Interviews im ZBIW. Wir freuen uns, dass wir wieder zeigen konnten, dass unsere Maßnahmen zur Qualitätssicherung erfolgreich sind. 🎉

    #QM #Qualitätsmanagement #ISO9001 #Fortbildung #ZBIW #ThKoeln #Weiterbildung #Fortbildung #Library #Bibliothek

  3. Wir haben uns erneut einem Audit unterzogen und bestanden – ohne Abweichungen!

    Die Akademie für wissenschaftliche Weiterbildung der TH Köln und das ZBIW bilden eine Qualitätsgemeinschaft. Gestern fand das Überwachungsaudit nach ISO 9001 statt – inklusive Interviews im ZBIW. Wir freuen uns, dass wir wieder zeigen konnten, dass unsere Maßnahmen zur Qualitätssicherung erfolgreich sind. 🎉

    #QM #Qualitätsmanagement #ISO9001 #Fortbildung #ZBIW #ThKoeln #Weiterbildung #Fortbildung #Library #Bibliothek

  4. `In this paper, we show a quantum simulator system that consists of a continuously driven Kerr parametric oscillator with a third-order nonlinearity that can be operated in the quantum regime to create a fully tunable asymmetric double-well. Our experiment leverages a low-noise, all-microwave control system with a high-efficiency readout, based on a tunnel Josephson junction circuit, of the which-well information.`

    doi.org/10.1103/71yp-fqns

    #quantum #physics #chemistry #quantumChemistry #QM

  5. Quantum mechanics predicts experimental results to eleven significant figures. Yet it does not explain what happens when a quantum system is observed. This article examines the measurement problem and why the problem has direct consequences for any theory of quantum gravity.

    #cosymorg #science #QM

    cosym.org/2026/04/01/the-measu

  6. Possible Study Paths in #QuantumComputing for Undergraduates

    —— #EE, #Physics, and #Maths ——
    • PROB—"Grinstead and Snell’s Introduction to Probability", Doyle
    • LALG—"Introduction to Linear Algebra", Strang
    • QM—"The Feynman Lectures on Physics, Volume 3", Feynman
    • QC—"Quantum Computation and Quantum Information" (Mike & Ike), Nielsen

    —— #CS and #DS ——
    • PROB—"Probability: For the Enthusiastic Beginner", Morin
    • LALG—"Basic Linear Algebra", Blyth
    • QM—"Introduction to Quantum Mechanics", Griffiths
    • QC—"Introduction to Quantum Computing: From a Layperson to a Programmer in 30 Steps", Wong

    —— Optional reading for all ——
    • VISUAL—"3D Computer Graphics", Watt

    —— Arguments against QC ——
    youtu.be/pDj1QhPOVBo?si=P4h0Ga, Yoganathan
    youtu.be/MukMOZ0J-Ww?si=WOIzDT, Hossenfelder

    —— My Personal View ——
    As of 2026, I see QC as just another Wall Street hype. But this technology has come a long way since its 1982 inception, at least on the hardware side. On the software side, though, progress is almost nonexistent over the past thirty years. And forget about generating QC code using ChatGPT, at least for now.🤣

    Still, from the perspective of an intellectual pursuit, #QC concepts have much to teach the #STEM undergrads. Moreover, #QM is one of those studies that squashes a young, blobby mind then remoulds it into a mature, structured mind; it is an eminently worthwhile pursuit. But it is a subject universally reviled by STEM undies, except those in EE and Physics. If QC does nothing else but to induce some of those kids to pursue QM, that is good enough for me.

  7. My current favourite introductory (undie-level) #textbooks on #QuantumComputing #QC are these:

    • "Introduction to Quantum Computing: From a Layperson to a Programmer in 30 Steps"
    — H Wong (EE), 2024, shorturl.at/1wdEz

    • "Introduction to Classical and Quantum Computing" [FREE]
    — T Wong (physicist), 2022, shorturl.at/rNjRw

    Both books are aimed at college seniors majoring in CS or maths. While these texts may be a bit clunky for the physics or EE upperclassmen's liking, they could serve as a gentler introduction to #QuantumMechanics #QM for the freshmen in these disciplines.

    I prefer H Wong's book, but T Wong's book is also superb (and it is free). I recommend the students read both. This sure is a rare case of two Wongs making one right.

    Also, EE upperclassmen should read H Wong's other books:

    • "Quantum Computing Architecture and Hardware for Engineers: Step by Step, Volume 1"
    — H Wong, 2025, shorturl.at/4Fe1e

    • "Quantum Computing Architecture and Hardware for Engineers: Step by Step, Volume 2" [FREE]
    — H Wong, 2025, shorturl.at/WafIP

    NB—QC maybe but a #hype, for the time being. It may yet grow into something practicable, in the near future. But then, it may not. Be that as it may, the concepts that sprang from Feynman's 1982 seminal paper on the physics of #ReversibleComputing are fascinating all their own, so the undergrads in physics, EE, CS, and maths should at least be familiar with them. After all, no substantive knowledge is ever superfluous. And more importantly, QC can be a springboard, an enticement even, for these kids to dive into the fascinating ocean of QM, or at least dip into an intriguing classical computing pond of #ProbabilisticComputing.

  8. Moin zusammen! 👋

    #QM & #Controlling in der #SozialeArbeit – systemtheoretisch gedacht?! Das kann sogar Stoff für ein gutes 2-Tage-Seminar sein.

    Eine Leitorientierung aus der Nachbereitung der beiden letzten Tage an der #FHMünster teile ich hier:

    „Nutze Qualitätsmanagement, um Spielräume selbst- und professionsbewusst zu verteidigen!“

    Denn...

  9. Lese in der Vorbereitung zu einem Modul "Systemisches #QM" so schöne Sätze wie:

    "Verfahren des #Qualitätsmanagement|s können nur dann Erfolg versprechend eingesetzt werden, wenn über deren Sinngehalt kommuniziert wird und dieser Sinngehalt von denen, die in das Verfahren praktisch einbezogen sind,
    im Grundsatz akzeptiert wird" (Merchel 2017).

    Hach ja... Schön wär's...

  10. #Buddhism and #QuantumPhysics both challenge classical views of independent, permanent entities. #Buddhist notions like #DependentOrigination and #emptiness hold that phenomena lack inherent essence and exist only relationally. #QM shows #reality as probabilistic & context-dependent, w properties emerging through interaction. Though methodologically distinct, both unsettle substance-based #ontologies and stress the relational nature of existence.

    🌍 fabriziomusacchio.com/weekend_

    #WeekendStories

  11. #Buddhism and #QuantumPhysics both challenge classical views of independent, permanent entities. #Buddhist notions like #DependentOrigination and #emptiness hold that phenomena lack inherent essence and exist only relationally. #QM shows #reality as probabilistic & context-dependent, w properties emerging through interaction. Though methodologically distinct, both unsettle substance-based #ontologies and stress the relational nature of existence.

    🌍 fabriziomusacchio.com/weekend_

    #WeekendStories

  12. #Buddhism and #QuantumPhysics both challenge classical views of independent, permanent entities. #Buddhist notions like #DependentOrigination and #emptiness hold that phenomena lack inherent essence and exist only relationally. #QM shows #reality as probabilistic & context-dependent, w properties emerging through interaction. Though methodologically distinct, both unsettle substance-based #ontologies and stress the relational nature of existence.

    🌍 fabriziomusacchio.com/weekend_

    #WeekendStories

  13. #Buddhism and #QuantumPhysics both challenge classical views of independent, permanent entities. #Buddhist notions like #DependentOrigination and #emptiness hold that phenomena lack inherent essence and exist only relationally. #QM shows #reality as probabilistic & context-dependent, w properties emerging through interaction. Though methodologically distinct, both unsettle substance-based #ontologies and stress the relational nature of existence.

    🌍 fabriziomusacchio.com/weekend_

    #WeekendStories

  14. #Buddhism and #QuantumPhysics both challenge classical views of independent, permanent entities. #Buddhist notions like #DependentOrigination and #emptiness hold that phenomena lack inherent essence and exist only relationally. #QM shows #reality as probabilistic & context-dependent, w properties emerging through interaction. Though methodologically distinct, both unsettle substance-based #ontologies and stress the relational nature of existence.

    🌍 fabriziomusacchio.com/weekend_

    #WeekendStories

  15. This computational/physical system, probably a simulation of such (simulations seem generally less energy consuming than actual universes, and would certainly be waaaaaaay more abundant), generating our universe is very cleverly made, even if it results in creatures eating other creatures because it's midday, and time for a snack.

    Oddly, not one of us has used "decoherence" as a hashtag.

    Sure, it's possible I'm dead and hallucinating this universe, but Sabine knows more about physics than I do, so I tend to doubt that theory. Hey. Why is the cat in 2 places at once?

    youtube.com/watch?v=LbG0WShXbTA

    #science #QM #QuantumMechanics #decoherence

  16. #Reklamation Nr. 404 fertig bearbeitet und dokumentiert.
    Und natürlich war das eine, wo was gefehlt hat 😁

    Customer #complaint no. 404 solved and documented.
    And of course that was one where something was missing 😁

    #QMS #QM

  17. What physicists believe about quantum mechanics

    A few years ago David Bourget and David Chalmers did a follow up survey to the 2009 one polling philosophers on what they believe about various questions. One of them was quantum mechanics, particularly the measurement problem and its various interpretations. Over the decades there have been surveys of physicists themselves on this question, but most, if not all, were with a very small sample size, usually only the attendees at a particular conference.

    As part of the Quantum Centennial (the celebration of 100 years of quantum mechanics) Nature has done a fairly large survey of the community of quantum researchers with over 1100 respondents. The results are interesting, although not particularly surprising.

    Copenhagen still comes out on top with 36%. It’s interesting that it’s stronger with experimentalists than with theorists (half vs a third). I suspect the experimentalists are hewing to a very pragmatic version of the interpretation. Which highlights a concern that the term “Copenhagen interpretation” means different things to different people. The article acknowledges this, noting that 29% of those who selected Copenhagen favored an ontic version of the wave function vs 63% who came down epistemic.

    15% are Everettians (or “consistent-history” advocates, who I suspect object to being lumped in with the many-worlders), 7% Pilot-wave, 4% Spontaneous collapse, 4% Relational Quantum Mechanics, and a smattering in other views.

    Overall 47% of respondents see the wave function as just a mathematical tool, with 36% taking a partial or complete realist take (my view), and 8% taking it to only represent subjective beliefs about experimental outcomes.

    45% see a boundary between classical and quantum objects (5% see it as sharp) while 45% don’t (my view).

    Just before the paywall, there is a question about the observer in quantum mechanics, with 9% saying it must be conscious. Another 56% said there had to be an observer, but that “observer” can just be interaction with a macroscopic environment, and 28% arguing that no observer at all is needed. (I think interaction with the macroscopic environment and the resulting decoherence is key, but it seems misleading to call that environment an “observer”.)

    All interesting. Of course, how popular or unpopular a view is has no real bearing on whether it’s reality. Prior to Galileo’s telescopic observations in 1609, an Earth-centered universe was the most popular cosmology. Only a miniscule handful of astronomers accepted Copernicus’ view about the Earth orbiting the sun. Until the quantum-measurement equivalent of the telescope comes along, all we can do is reason as best as possible with the current data.

    The results here are interesting to compare with what the philosophers thought on the Bourget-Chalmers survey. On quantum mechanics, philosophers were 24% agnostic, 22% hidden variable theories, 19% many-worlds, 17% collapse, and 13% epistemic. Once we take into account all the various forms of “Copenhagen interpretation”, these seem in a similar ballpark, except that philosophers are more open to hidden variable approaches. (It may be easier to favor hidden variables if you’re not the one who has to find them.)

    My own view comes down to a preference for structural completeness (or at least more structurally complete models), which to me currently favors a cautious and minimalist take on the Everettian approach (as I described a few months ago). However, my credence in this conclusion is only 75-80%. That the survey indicates most physicists aren’t super confident in their own conclusions here makes me feel better.

    This reminds me of a new approach that Jacob Barandes has been promoting on various podcasts (see this recent Sean Carroll episode as an example). Barandes calls it Indivisible Stochastic Quantum Mechanics. I won’t pretend to understand exactly what he’s trying to accomplish with it, but it involves rejecting the wave function completely, and replacing it with something more stochastic from the beginning. Which strikes me as less structurally complete than the wave function, and so a move in the wrong direction. But maybe I’ll turn out to be wrong.

    Anyway, now we have a firmer idea of where the physics community currently stands on quantum interpretations, or at least a firmer one than we did before. How would you have answered the survey questions? (There’s actually a small quiz in the article which is worth taking to see the logic leading to particular interpretations.)

    #InterpretationsOfQuantumMechanics #Philosophy #PhilosophyOfScience #Physics #QM #QuantumMechanics #Science

  18. New Nature survey on quantum foundations: 15,582 physicists (1,101 responded, ~7 %) were asked about their preferred interpretation of #QuantumMechanics. The #Copenhagen interpretation remains most popular (36%) – but mainly out of habit. Only 24% are confident in any interpretation. A sign of deep conceptual unease, nearly 75% expect a future theory to replace all current interpretations 〰️🔍👈

    🌍 nature.com/articles/d41586-025

    #QM #Physics

  19. University hospitals in Germany play a key role in bringing evidence-based AI into patient care. The journey - and the regulations - can only be mastered as a team. We shared our experiences at the Ecclesia seminar: close collaboration with #QM and #DataProtection is essential. As the AMPEL team, we’re fortunate to have such competent and proactive support!

    Our conclusion: AI at university hospitals? Only works if all departments participate!

    #MedicalAI #ClinicalAI #AMPEL #Leipzig

  20. But as we get away from typical dimensions, set to "1 unit" such as in velocity, the quantitative problems quickly grow until they reach a breaking point, as the 2 "pillars" of science ( #QM & #Relativity) have forced us to come to terms with. Worse yet, they can't work together as currently held.

  21. We've gone way off topic at this point. I did not argue that there was no #QM involved (or that they weren't aware, etc). This is a subtle argument that we cannot ascribe the existence of lasers exclusively or majorly to QM. It's more to classical EM theory, ingenuity, & failed radar experience.

    #qm
  22. Going to take the contrarian view on this one. (surprise!) #QM is considered "extremely successful" as a theory mostly because people (media) keep claiming it is, w/o citation or specific evidence. It did not echo Feyerabend by saying 'no fixed rules', it's more of a claim that rules don't matter.

    RE: https://bsky.app/profile/did:plc:4rbsi3zu2tan23k3ehveyexi/post/3lmyxbnmcgq2o

    #qm
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  24. Many of the products of human thought are invisible to the creatures on Earth as a result of technological innovation...

    ...With each passing year humankind moves toward the ability to create its own reality. First, practical telepathy. Next the ability to project created imagery without supporting substrates. After a time the ability to parse the fabric of reality. Then a purpose created place where whatever remains human can exist with the power of consciousness alone. At that point, though still a separate consciousness, humanity will have become invisible to the world from which it leapt.

    Through a door made of light an entrance and an exit. What will humanity do then?"

    ~ Ghost in Waiting

    #consciousness #reality #quantummechanics #qm

  25. There's an unfortunate twist of meaning in the term "interfere" that is reflected in the non-explanatory powers of #QM. To not interfere suggests that the natural state's free from whatever "interfering" is, rather than perhaps already (always) being involved in what exists & what's being measured.

    #qm
  26. Two characteristics of a #paradigm_shift in the Kuhn model are that there is a replacement of old with new, and the new is better. Another essentially claims that there is an excluded middle there, via incommensurability. I find that modern theories don't fit neatly into this binary view. #QM #GR