Dialogos of Eide/Home

  • The Holographical Mapping of the Standard Model onto the Blackhole Horizon

    New paper that came out yesterday written by Gerard ‘t Hooft Interactions between outgoing Hawking particles and ingoing matter are determined by gravitational forces and Standard Model interactions. In particular the gravitational interactions are responsible for the unitarity of the scattering against the horizon, as dictated by the holographic principle, but the Standard Model interactions…

  • Emergence= Phase Transitions of Symmetry?

    Witten said: One thing I can tell you, though, is that most string theorist’s suspect that spacetime is a emergent Phenomena in the language of condensed matter physics. Part of the difficulty was realizing that the end result of a current depiction of the universe, and the reality around us now, had led us to…

  • The Arrow of Time

    Rudolf Julius Emanuel Clausius There is but one kind of entropy change. Entropy change is due to energy dispersal to, from, or within a system (as a function of temperature.), measured by microstate change: S = kB ln [microstates final / microstates initial ]. I should back up here and mentioned that Peter Woit seems…

  • Quantum Microstates: Gas Molecules in the Presence of a Gravitational Field

    Andy Strominger: This was a field theory that lived on a circle, which means it has one spatial dimension and one time dimension. We derived the fact that the quantum states of the black hole could be represented as the quantum states of this one-plus-one dimensional quantum field theory, and then we counted the states…

  • Fool’s Gold

    Ludwig Boltzmann (1844-1906) In 1877 Boltzmann used statistical ideas to gain valuable insight into the meaning of entropy. He realized that entropy could be thought of as a measure of disorder, and that the second law of thermodynamics expressed the fact that disorder tends to increase. You have probably noticed this tendency in everyday life!…

  • The Holographical Principle

    I must add a very important note. It is still hard for me to believe that Lee Smolin wrote something that could imply that *he* was the author of the conjecture. Lee Smolin has nothing to do with the discovery of the holographic principle and I hope that he always refers to the real authors…

  • Information in the Holographic Universe: A Holographic Spacetime

    by Jacob D. Bekenstein TWO UNIVERSES of different dimension and obeying disparate physical laws are rendered completely equivalent by the holographic principle. Theorists have demonstrated this principle mathematically for a specific type of five-dimensional spacetime (“anti–de Sitter”) and its four-dimensional boundary. In effect, the 5-D universe is recorded like a hologram on the 4-D surface…

  • Plato’s Cave and Heisenberg, 21st Century with Witten

    Breaking Symmetry Here I sit in Brane world and the idea of “Pants” reaching different dimenisons seems intrigueing to me. Far beyond the views that one see from the light shining, from the open mouth of the cave, some far reaching ideas are manfesting into the world we see today. How weak then, the gravity…