A Holographic Quantum Theory of Spacetime - Tom Banks (SETI Talks)
Δημοσιεύτηκε στις 2 Ιουλ 2015
Tom Banks, UC Santa Cruz
The
theory called Holographic Space-time is an attempt to generalize String
Theory so that one can discuss local regions of space-time. It's key
feature is a mapping between quantum concepts and the geometry of
space-time. Causality conditions are imposed, as in quantum field
theory, by insisting that things which cannot have mutual quantum
interference are things that are causally separated. Geometrical sizes
are encoded via the Holographic Principle: the number of quantum states
in a region is determined by the area of a certain surface surrounding
that region. In 1995, Jacobson showed that one could derive Einstein's
equations by imposing this principle in every space-time region.
Einstein's equations are the hydrodynamic equations of a system whose
statistics obeys the Holographic connection between space-time and the
number of quantum states. Dr. Banks will outline the application of
these ideas to a new model of the early inflationary universe, as well
as to a rough prediction of the masses of supersymmetric particles.
The
theory called Holographic Space-time is an attempt to generalize String
Theory so that one can discuss local regions of space-time. It's key
feature is a mapping between quantum concepts and the geometry of
space-time. Causality conditions are imposed, as in quantum field
theory, by insisting that things which cannot have mutual quantum
interference are things that are causally separated. Geometrical sizes
are encoded via the Holographic Principle: the number of quantum states
in a region is determined by the area of a certain surface surrounding
that region. In 1995, Jacobson showed that one could derive Einstein's
equations by imposing this principle in every space-time region.
Einstein's equations are the hydrodynamic equations of a system whose
statistics obeys the Holographic connection between space-time and the
number of quantum states. Dr. Banks will outline the application of
these ideas to a new model of the early inflationary universe, as well
as to a rough prediction of the masses of supersymmetric particles.
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