Bell's Theorem: The Quantum Venn Diagram Paradox

Author channel minutephysics   1 год. назад
3,695,347 views

95,112 Like   3,542 Dislike

The Secrets Of Quantum Physics: Let There Be Life (Full Physics Documentary) | Spark

Professor Jim Al-Khalili traces the story of arguably the most important, accurate and yet perplexing scientific theory ever: quantum physics. The story of quantum physics starts at the beginning of the 20th century with scientists trying to better understand how light bulbs work. This simple question soon led scientists deep into the hidden workings of matter, into the sub-atomic building blocks of the world around us. Here they discovered phenomena unlike any encountered before - a realm where things can be in many places at once, where chance and probability call the shots and where reality appears to only truly exist when we observe it. Albert Einstein hated the idea that nature, at its most fundamental level, is governed by chance. Jim reveals how in the 1930's, Einstein thought he'd found a fatal flaw in quantum physics. This was not taken seriously until it was tested in the 1960s. Professor Al-Khalili repeats this critical experiment, posing the question does reality really exist, or do we conjure it into existence by the act of observation? Elsewhere, we explore how the most famous law of quantum physics – The Uncertainty Principle – is obeyed by plants and trees as they capture sunlight during the vital process of photosynthesis. Could quantum mechanics explain the greatest mystery in biology - evolution? Content Provided By TVF International. Any Queries Please Contact Us at hello@littledotstudios.com Subscribe to Spark for more amazing science, tech and engineering videos - https://goo.gl/LIrlur Follow us on Facebook: https://www.facebook.com/SparkDocs/ Follow us on Instagram: https://www.instagram.com/spark_channel/?hl=undefined #Quantumphysics #life #subatomicparticles #engineering #science #technology #JimAl-Khalili #experiment #originoflife

Thinking visually about higher dimensions

How do you think about a sphere in four dimensions? What about ten dimensions? Podcast! https://www.benbenandblue.com/ Problem-driven learning on at https://brilliant.org/3b1b Special thanks to these patrons: http://3b1b.co/high-d-thanks Check out Ben Eater's channel: https://www.youtube.com/user/eaterbc Music by Vincent Rubinetti: https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown ------------------ 3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe, and click the bell to receive notifications (if you're into that). If you are new to this channel and want to see more, a good place to start is this playlist: http://3b1b.co/recommended Various social media stuffs: Website: https://www.3blue1brown.com Twitter: https://twitter.com/3Blue1Brown Patreon: https://patreon.com/3blue1brown Facebook: https://www.facebook.com/3blue1brown Reddit: https://www.reddit.com/r/3Blue1Brown

Is Glass a Liquid?

Stained glass is thicker at the bottom - so is it a liquid? Earth's mantle enables plate tectonics, so is it a liquid? Check out Audible: http://bit.ly/AudibleVe Sign up for the mailing list: http://www.veritasium.com Pitch drop experiment: http://www.thetenthwatch.com Thanks to Meg Rosenburg for scripting and animation, Raquel Nuno for filming and Aaron White for script consultation.

The paradox of choice | Barry Schwartz

http://www.ted.com Psychologist Barry Schwartz takes aim at a central tenet of western societies: freedom of choice. In Schwartz's estimation, choice has made us not freer but more paralyzed, not happier but more dissatisfied. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers are invited to give the talk of their lives in 18 minutes -- including speakers such as Jill Bolte Taylor, Sir Ken Robinson, Hans Rosling, Al Gore and Arthur Benjamin. TED stands for Technology, Entertainment, and Design, and TEDTalks cover these topics as well as science, business, politics and the arts. Watch the Top 10 TEDTalks on TED.com, at http://www.ted.com/index.php/talks/top10

Ancient Artifacts That Are Still Shrouded in Controversy Today

The evidence that there is more to ancient history than we were taught in school is coming in thick and fast. Find out about cities that are many thousands of years old, about artifacts that curiously resemble modern inventions and customs and traditions that have their beginnings before modern civilizations! There are some great mysteries in this world that cannot be explained, as you will see with some of these are truly impossible artifacts. We will look at details respecting the most awe: ancient pyramids, caves, artifacts, and ruins. Technology associated with these relics are then the object of investigation. Rationale remained fact-based against many of the pre-existing theories for the accomplishments of our ancient ancestors. Their accomplishments and disappearances could have realistically been a result of technologies that to us would appear to be supernatural in nature or origin!

Featuring 3Blue1Brown
Watch the 2nd video on 3Blue1Brown here: https://www.youtube.com/watch?v=MzRCDLre1b4

Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics
Link to Patreon Supporters: http://www.minutephysics.com/supporters/

This video is about Bell's Theorem, one of the most fascinating results in 20th century physics. Even though Albert Einstein (together with collaborators in the EPR Paradox paper) wanted to show that quantum mechanics must be incomplete because it was nonlocal (he didn't like "spooky action at a distance"), John Bell managed to prove that any local real hidden variable theory would have to satisfy certain simple statistical properties that quantum mechanical experiments (and the theory that describes them) violate. Since then, GHZ and others have managed to extend the theoretical work, and Alain Aspect performed the first Bell test experiment in the late 1980s.

Thanks to Vince Rubinetti for the music: https://soundcloud.com/vincerubinetti/one-two-zeta

And thanks to Evan Miyazono, Aatish Bhatia, and Jasper Palfree for discussions and camaraderie during some of the inception of this video.

REFERENCES:

John Bell's Original Paper: http://inspirehep.net/record/31657/files/vol1p195-200_001.pdf

Quantum Theory and Reality: https://www.scientificamerican.com/media/pdf/197911_0158.pdf

"What Bell Did" By Tim Maudlin: https://arxiv.org/pdf/1408.1826

Bell's Theorem on Wikipedia: https://en.wikipedia.org/wiki/Bell%27s_theorem

2015 experimental confirmation that QM violates Bell's theorem: https://arxiv.org/pdf/1508.05949.pdf
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.250402

Bell's Theorem without Inequalities (GHZ): http://dx.doi.org/10.1119/1.16243

Kochen-Specker Theorem: https://en.wikipedia.org/wiki/Kochen–Specker_theorem

MinutePhysics is on twitter - @minutephysics
And facebook - http://facebook.com/minutephysics
And Google+ (does anyone use this any more?) - http://bit.ly/qzEwc6

Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

Created by Henry Reich

Comments for video: