Origin of space and time in a non-commutative cosmological model

Authors
Prof.
Michael Heller
Date and time
22 Mar 2010 - 23:00 Europe/London
Address

Aula

Talk language
English
Slides language
English
Serie number
0
Description

A Friedman-like cosmological model, based on noncommutative geometry, is presented. Its Planck level is totally nonlocal with no space and no time. The dynamics on this level is strongly probabilistic which makes the initial singularity statistically insignificant. Space, time and the standard dynamics emerge when one goes from the non-commutative regime (on the Planck level) to the usual "commutative physics".

Talk Video
https://youtu.be/pGaV22fIHqw
Gravitation
Early universe

It may interest you

  • Probing the early Universe with gravitational Wave Background
    We will review both theoretical and obsevational aspects of gravitational wave backgrounds of cosmological origin. We will present a classifcation of backgrounds and a quantification of our ability to use them as a probe of early Universe phenomena, opening a new observational window to energy scales well above the reach of any terrestrial means
    Dr.
    Daniel G. Figueroa

    Aula

    21 Nov 2023 - 10:00 Europe/London
    Past
  • Transient submm sources with Simons Observatory
    Simons Observatory (SO) is a new Cosmic Microwave Background telescope currently under construction in the Atacama Desert, close to ALMA and other recent CMB telescopes. It will have six small aperture (42cm) telescopes (SATs), and one large aperture (6m) telescope (LAT), observing at 30-280GHz (1-10mm) using transition edge sensors (TES) and
    Dr.
    Mike Peel
    Imperial College London

    Aula

    26 Sep 2023 - 11:30 Europe/London
    Past
    Talk Video
    https://youtu.be/tRjiJVbop5I
  • The galaxy-halo connection in the cosmic web
    Galaxies and the dark matter halos in which they reside are intrinsically connected. That relationship holds information about key processes in galaxy and structure formation. In this talk, I will consider how the galaxy-halo connection depends on position within the cosmic web - the familiar decomposition of large-scale structure in filaments
    Rita Tojeiro

    Aula

    28 Mar 2023 - 12:30 Europe/London
    Past
    Talk Video
    https://youtu.be/1q-4CLaYMUA