Dialogos of Eide/Home

  • Lecture 1: The Theoretical Minimum

    Published on Feb 16, 2012 (January 9, 2012) Leonard Susskind provides an introduction to quantum mechanics. See: Lecture 1: The Theoretical Minimum Dialogos of Eide

  • What is Your Theory On Blackhole Radiation?

    MSU Professor Chris Adami has found the solution to a long-standing problem with Stephen Hawking’s black hole theory. In a groundbreaking study recently published in the journal Classical and Quantum Gravity, Adami found that various types of information, as specific as matter or particles, or as obscure as the contacts in your mobile phone or…

  • Gravitational Collapse and the Horizon

    It has been suggested [1] that the resolution of the information paradox for evaporating black holes is that the holes are surrounded by firewalls, bolts of outgoing radiation that would destroy any infalling observer. Such firewalls would break the CPT invariance of quantum gravity and seem to be ruled out on other grounds. A different…

  • Entanglement and the Geometry of Spacetime

    Theorists have forged a connection between wormholes in spacetime (above) and a quantum phenomenon called entanglement. But how big an insight is this? It depends on whom you ask. Susskind and Maldacena note that in both papers, the original quantum particles reside in a space without gravity. In a simplified, gravity-free 3D model of our…

  • Analogies Make You Think

    See: Falling into a Blackhole– On Sept. 25, four theoretical physicists — Raphael Bousso (U.C. Berkeley), Juan Maldacena (Institute for Advanced Study), Joseph Polchinski (U.C. Santa Barbara) and Leonard Susskind (Stanford University) — answered your questions about the latest theories about what happens when matter falls into a black hole and how these ideas are…

  • Information Loss

    You see, people are uncomfortable with this information loss. It’s the minority view.Pg 64, The Cyclic Universe: A Conversation with Roger Penrose I am certainly uncomfortable with it, as I have always seen it from the idea  as to what is current in the field of discussion around blackholes and such. So there are things…

  • The black-hole information paradox, complementarity, and firewalls by Leonard Susskind

    The black-hole information paradox, complementarity, and firewalls by Leonard Susskind, Stanford University, at the University of California, Santa Cruz Institute for the Philosophy of Cosmology July 5, 2013 http://hipacc.ucsc.edu/IPC2013.html Dialogos of Eide

  • Cool horizons for entangled black holes

    Schwarzschild wormholes General relativity contains solutions in which two distant black holes are connected through the interior via a wormhole, or Einstein-Rosen bridge. These solutions can be interpreted as maximally entangled states of two black holes that form a complex EPR pair. We suggest that similar bridges might be present for more general entangled states.…

  • TED Talk-Leonard Susskind: My friend Richard Feynman

    I decided when I was asked to do this that what I really wanted to talk about was my friend Richard Feynman. I was one of the fortunate few that really did get to know him and enjoyed his presence. And I’m going to tell you the Richard Feynman that I knew. I’m sure there…

  • Entheorizing

    LEONARD SUSSKIND: And I fiddled with it, I monkeyed with it. I sat in my attic, I think for two months on and off. But the first thing I could see in it, it was describing some kind of particles which had internal structure which could vibrate, which could do things, which wasn’t just a…

  • Voxels

    A generalization of a voxel is the doxel, or dynamic voxel. This is used in the case of a 4D dataset, for example, an image sequence that represents 3D space together with another dimension such as time. In this way, an image could contain 100×100×100×100 doxels, which could be seen as a series of 100…