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Entanglement and Complexity: Gravity and Quantum Mechanics

Entanglement and Complexity: Gravity and Quantum Mechanics on HackerTube: recommended by 4 Hacker News commenters across 4 separate months, 2015–2023.

Stanford Institute for Theoretical Physics

lecture · advanced · evergreen

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Leonard Susskind lectures at Stanford on how gravity and quantum information theory have merged into a new way of thinking about physics. He covers entanglement and complexity, with applications from black holes to strange metals and the foundations of quantum mechanics.

Why Hacker News recommends it

Commenters recommend it as a clear, characteristically engaging Susskind lecture for people trying to grasp the entanglement and gravity connection.

people recommended it
4
separate months
4
strong recommendations
0
discussed on HN
2015–2023
“Mr.Susskind has a Stanford lecture on this topic detailing the physics in his own unique & awesome way”
— jharohit, Nov 2015, in “SLAC Theorist Lance Dixon Explains Quantum Gravity”

What HN commenters said

5 Hacker News comments link this video. Each one links back to its thread.

hughesjjJul 2023Recommends

I'm definitely into the "it's an emergent phenomena" camp. I think it's inherently relational, as that's a more efficient way to encode geometry rather than space itself being a quantized "thing". Afaik this theory is the "leading"/imho most promising theory of "quantum gravity", that being the "gravity = entanglement" conjecture and the related ideas of "Complexity= action/volume/whatever" that susskind and many others have been developing for the past 20 so years. All that said I'm nowhere near a physicist and am probably just spewing a total misunderstanding of the situation from my armchair. That said, I've been incessantly watching lectures in this space to try to beat an understanding into my dumb dumb brain because it's super, super fucking cool. - [link] - [link] - ▶ this video - [link] - [link] I'm also fascinated by the idea of phase transitions, which seems to be how the laws of physics have "evolved" so far. It's crazy how much quantum computation is coming into play with this stuff, ex last year's Nobel prize with the bell inequality. That said I'm sure being a programmer I'm biased to think the universe is inherently computation/math.

in “The Physicist Who’s Challenging the Quantum Orthodoxy” · View on HN

philipovApr 2019Recommends

How about another lecture by Leonard Susskind? I'm just repeating his ideas! The gist of it is that the connectivity of space is related to the patterns of entanglement between particles in the quantum foam. If you were to break that entanglement, you could disconnect two regions of space. ▶ this video

in “Travel through wormholes is possible, but slow” · View on HN

ithkuilJan 2019Recommends

I found these lectures by Leonard Susskind very insightful: - Leonard Susskind on The World As Hologram ( [link] ) - Leonard Susskind | "ER = EPR" or "What's Behind the Horizons of Black Holes?" ( [link] ) - Entanglement and Complexity: Gravity and Quantum Mechanics ( ▶ this video )

in “Strangeness of Black Holes” · View on HN

jharohitNov 2015Recommends

Mr.Susskind has a Stanford lecture on this topic detailing the physics in his own unique & awesome way ▶ this video

in “SLAC Theorist Lance Dixon Explains Quantum Gravity” · View on HN

philipovOct 2017Cites it

A black hole is a fast scrambler and very quickly comes to thermal equilibrium (max entropy). However, the complexity continues to increase long after thermal equilibrium, and that's what is thought to be analogous to the length of the wormhole growing (at the speed of light, no less). [0]: ▶ this video

in “Newfound Wormhole Allows Information to Escape Black Holes” · View on HN

Topics & tags

Quantum physicsCosmology & astrophysicsUniversity lectures & coursessusskindblack holeswormholesquantum informationcomplexity