Arvin Ash

How Quantum Mechanics produces REALITY & perhaps ARROW of TIME | wave collapse & Decoherence (2021x16)

Udgivelsesdato: Maj 21, 2021

To learn subjects like this more in depth, go to: https://brilliant.org/arvinash -- you can sign up for free! And the first 200 people will get 20% off their annual membership. Enjoy! Citations: Yale research on recording wave collapse, Minev et al: http://t.ly/cX9v Bouchard et al paper on observing recoherence: http://t.ly/rOqb Quantum mechanics link to time, Smolin et al: http://t.ly/2Psj Like this stuff? Join my Patreon: https://www.patreon.com/arvinash Chapters: 0:00 - What's the problem? 1:08 - Quantum indeterminism 2:42 - What is superposition? 3:50 - How do we know this is reality? 5:03 - Switch from quantum to classical 6:06 - Quantum decoherence explained 8:52 - Is decoherence really irreversible? 11:26 - Is there a point of no return? 12:18 - How does QM determine time Summary: How does the indeterminate world of quantum mechanics, where the future isn’t fixed, become the classical predictable real world we experience? Quantum researchers argue about it even today. It's really all about time, and the boundary between the past and future. Quantum mechanics insist that the spin of particle has neither one direction or the other until we look. The very act of looking forces the universe to make a choice. All the variables that characterize the properties of an elementary particles, such as its position and momentum, are encoded in a mathematical expression called a wave function. It is just a sum of the states that the particle could be found in. This is called a superposition. By itself, the wave function doesn’t have any intuitive meaning. But the square of the wave function gives us the probability of finding that quantum object in any particular place. Prior to measurement, quantum mechanics doesn’t really tell us anything about a particle. We know this is true because particles interfere with each other prior to measurement as in the double slit experiment. In our macro world, we never see this superposition. So