ARE THE STRING AND EINSTEIN FRAMES EQUIVALENT?

2001/11/12 by Enrique Alvarez, Enrique Alarcón Álvarez, Jorge Conde · 1 voice · 26 citations
Computer Science · Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Classical mechanics #Computational Physics and Python Applications #Cosmology and Gravitation Theories #Einstein #Mathematical physics #Mathematics #Physics #String (physics) #Theoretical physics #gr-qc

paper · pdf · doi:10.1142/s0217732302006606

published in Modern Physics Letters A 17(07), 413-420 (World Scientific) · 12 pages, LaTeX

arxiv created 2001/11/12 · openalex publication_date 2002/03/07 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The low energy physics as predicted by strings can be expressed in two (conformally related) different variables, usually called frames. The problem is raised as to whether it is physically possible in some situations to differentiate one from the other.

Citations

• INFLATION, DEFLATION, AND FRAME-INDEPENDENCE IN STRING COSMOLOGY
• Unity of superstring dualities

Cited by

• Predictions and observations in theories with varying couplings
• Dilaton Quantum Cosmology with a Schrödinger-like Equation
• Transverse gravity versus observations

Discussions

• Consider the following low-energy effective action in $D$ dimensions for the bosonic sector: $$ I=\frac{1}{2\kappa_0^2}\int d^Dx\sqrt{-g}e^{-{2\Phi}}\left[R-2\Lambda+4g_{\mu\nu}\partial^\mu\Phi\partia [stackexchange, 1 points]