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A Generalized Hartle-Hawking State

Stephon Alexander

Alexander, S. (2021). A Generalized Hartle-Hawking State. SciTalks. http://pirsa.org/21040007

Alexander, Stephon. A Generalized Hartle-Hawking State. SciTalks, Apr. 01, 2021, http://pirsa.org/21040007 

          @misc{ scitalks_21040007,
            doi = {},
            url = {http://pirsa.org/21040007},
            author = {Alexander, Stephon},
            keywords = {Quantum Gravity},
            language = {en},
            title = {A Generalized Hartle-Hawking State},
            publisher = {},
            year = {2021}
          }

Video URL http://pirsa.org/21040007

Abstract

The Hartle-Hawking-Vilenkin state is defined on mini-superspace and is semiclassically related to inflationary theory.  However, the state suffers a few problems connected to the path integral of Euclidean or the Lorentzian measure of metrics.  In this talk, we will explore a way around these issues by working in the (Ashtekar) connection representation, a real Kodama-Chern-Simons state.  We find a generalized "Fourier Transform" that related the Chern-Simons-Kodama state to the Hartle-Hawking state beyond mini-superspace.  We end with some discussion and open ended questions for cosmology and quantum gravity.

Details

Talk Number 21040007
Speaker Profile Stephon Alexander
Date
Source
Perimeter Institute Recorded Seminar Archive
Subject General Relativity & Quantum Cosmology