超弦理論が表す高次元時空の重力とその測定法の検討― 原子間力顕微鏡法 ―

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/12054
File
Title
超弦理論が表す高次元時空の重力とその測定法の検討― 原子間力顕微鏡法 ―
Title Alternative
Evaluation of Method of Measuring Gravity in Higher-Dimensional Spacetime Derived from Superstring Theory ― Atomic Force Microscopy ―
Author
氏名 鈴木 貴
ヨミ スズキ タカシ
別名 Suzuki Takashi
氏名 長尾 絢
ヨミ ナガオ ジュン
別名 Nagao Jun
氏名 尾崎 徹
ヨミ オザキ トオル
別名 Ozaki Tōru
Subject
superstring
brane world
gravitation in higher-dimension
extra dimension
atomic force microscope
Abstract

Based on the brane world scenario derived from the superstring theory, this article examines a possibility of detecting higher-dimensional spacetime with an atomic force microscope (AFM). The spacetime assumed in this scenario contains an extra dimension in addition to the“ observed” (1 + 3)-dimensional spacetime, where the 3-dimensional space, i.e., the universe is called the brane world. The extra dimension is supposed to have d spacial dimensions and be compactified in the small region of a size. The following facts play essential roles in our discussion; only the gravity spreads over the extra dimension as well as the brane, and the strength of the gravity in the extra dimension is stronger than that in the brane, so-called, the Newtonian gravity. We first calculate the size of the extra dimension and the gravitational constant in it. Using the results, we estimate whether AFM can detect the extra dimension by measuring the gravitational force and interval between two xenonatoms. We find that the strength of gravity becomes stronger and the interval shorter in extra dimensions, d = 1, 2, 3. These values are too small to be detected with AFM.

Journal Title
広島工業大学紀要. 研究編
Volume
48
Spage
43
Epage
51
Published Date
2014-02
ISSN
1346-9975
NCID
AA11599110
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Set
it-hiroshima