It has been said that even the scientific experts do not intuitively get it. Something Deeply Hidden. How an entity moves and changes can be explained by reference to its inner nature and to external powers acting upon it.
The decoherence/Zurek line of research has clearly made a lot of progress towards this goal. anderen zur Quantengravitation gewonnen hat, danach wird die Vorstellung nahegelegt, dass der Raum ein Resultat von Quantenphänomenen, d.h. emergent, ist. It really is just trying to plow through the concepts. https://www.c-span.org/video/?464115-1/something-deeply-hidden That was a really good quote. The quantum case still doesn’t have a satisfactory explanation. If a force does act on the rock, it will cause acceleration-some change in the velocity of the rock, which might make it go faster, or slower, or merely alter its direction-in direct proportion to how much force is applied. The amplitude that a particle is at some position x0, for example, would be written (x0). There are many, many Sean Carrolls. I do a lot of muddling through what I do not understand. If we have a system with multiple moving parts, the classical state of that entire system is just a list of the states of each of the individual parts.
Especially for the part three of the book that is about 'Spacetime'. Man benötigt keinen PhD in theoretischer Physik, um Respekt vor der Quantenmechanik zu haben, aber er schadet nicht – meint Sean Carroll im Prologe zu seinem neuen Buch 'Something Deeply Hidden', darin plädiert er dafür, dass die Quantentheorie sehr wohl verständlich ist, insbesondere wenn eine logisch nachvollziehbare Interpretation verwendet wird – der Autor favorisiert dabei ohne weitere Umschweife Everetts Viele Welten Deutung; auf dieser Grundlage stellt er neuere Ideen vor, die er in Arbeiten mit C. Cao u.a. It describes the whole world, from you and me to stars and galaxies, from the centers of black holes to the beginning of the universe. My understanding of the Copenhagen Interpretation is that subatomic particles do not have defined properties. Unlike “Matt”, I’m willing to believe that the preferred-basis problem as he states it is solvable, with a better understanding of what happens in a usual sort of physical “measurement”, without new “axiomatic principles”. This is about quantum spacetime and how space and time could be emergent. Attempts to address the measurement problem have led to the emergence of a field known as the interpretation of quantum mechanics, although the label isn't very accurate. In Something Deeply Hidde n, Sean Carroll argues that this situation is embarrassing and unnecessary, as we do have a very promising way of understanding quantum reality: the Many-Worlds theory, pioneered by Hugh Everett. Come on! It interests me, but this book is making my head ache and I'm having nightmares about forgetting my locker combination. Reviewed in the United Kingdom on October 20, 2019. What is this “environment” that causes decoherence? Ignore everything about the rock that a geologist might consider interesting, such as its color and composition. Full of spelling mistakes and grammatical errors, this makes an otherwise interesting book difficult to read. It’s just really helpful to split it up into worlds… characterizing the quantum state in terms of multiple worlds isn’t necessary – it just gives us an enormously useful handle on an incredibly complex situation… it is enormously convenient and helpful to do so, and we’re allowed to take advantage of this convenience because the individual worlds don’t interact with one another. We're very used to that by now, so it's worth reflecting on how impressive this is. So you shouldn’t be puzzling about what sort of thing many worlds explains, you should be puzzling about whether you can have a self-consistent, ontic, QM without getting many worlds as a by-product. But if the subject seems difficult or puzzling, the scientific response is to solve the puzzle, not to pretend it's not there. In this book, Carroll examines the reasons why people misunderstand quantum mechanics and advocates a version of the many-worlds interpretation, while objecting to the views often grouped together as the Copenhagen interpretation. I found Carroll’s clear explanations especially useful on topics where I disagree with him, since reading him clarified for me several different issues. Pingback: Quantum Supremacy II | Not Even Wrong, Many Worlds? You can choose many, many partitions into environment+pointer+system, and most of them don’t behave in ways at all consistent with Quantum Darwinism. Thanks for the great review. This review, which mentions weirdness and uncertainty,and "a recipe", is truly fascinating. I thought the problem was to get the trains from QM, and I don’t see how MWI does it. That's basically it. Putting his professional reputation on the line with this audacious yet entirely reasonable book, Carroll says that the crisis can now come to an end.
Search Browse; Resources. I'm a fan of pop-sci books having recently enjoyed books like "Six Easy Pieces" by Richard Feynman, "The Particle Zoo" by Gavin Hesketh and "Reality Is Not What Is Seems: The Journey to Quantum Gravity" by Carlo Rovelli. “Becomes natural” isn’t much of an argument (faced with a problem, there are “natural” things to do which are just wrong and don’t solve the problem). Environments cause decoherence, and if something doesn’t cause decoherence in a certain system, it doesn’t count as an “environment” of that system. It seems to me that pointer bases and quantum Darwinism only analyze the easy cases.
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