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A renormalization group method for studying the early universe in the Lorentzian IIB matrix model

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We propose a new method for studying the early universe in the Lorentzian version of the IIB
matrix model, which is considered to be a nonperturbative formulation of superstring theory.
This method is based on the idea of the renormalization group, and it enables us to study the
time-evolution of the universe for a much longer time than in the [S.-W. Kim, J. Nishimura, and
A. Tsuchiya, Phys. Rev. Lett. 108, 011601 (2012)], which showed that the SO(9) rotational symmetry
is spontaneously broken down to SO(3) after a “critical time”. We demonstrate how this
method works in a simplified model, which is expected to capture the behaviors of the original
model when the space is not so large. In particular, we present clear evidence that the 3D space
expands exponentially after the critical time in this simplified model.

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Informasi Detail

Judul Seri

Prog. Theor. Exp. Phys.

No. Panggil

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Penerbit

Oxford : Oxford University Press on behalf of the Physical Society of Japan., 2014

Deskripsi Fisik

Prog. Theor. Exp. Phys. 2014, 083B01 (19 pages)

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

FISIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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