Correlation between Momentum Modes and Winding Modes in Brandenberger-Vafa's String Cosmological Model : Particles and Fields
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概要
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Brandenberger and Vafa have proposed the string cosmological model based on T-duality. In this model, they took the toroidal target space and introduced the new position x^^~ conjugate to the winding mode, in addition to the position x conjugate to the momentum mode. In this way they can describe a universe larger than the string scale with the coordinate x and one smaller with the coordinate x^^~. Resultingly, they never encounter the singularity seen in the standard Big Bang scenario. The most interesting phenomenon in this model is the transition from x^^~-space to x-space when the size of universe is nearly the string scale. Here, we define the dispersion of the momentum number m times the winding number w as the `correlation' of momentum modes and winding modes. Then using the statistical mechanics of strings on a torus, we calculate the correlation in low and high temperature limits, and we consider the possibility that we can observe this effect today, but we will see that this is unlikely.
- 理論物理学刊行会の論文
- 1997-09-25
著者
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KUNITOMO Hiroshi
Yukawa Institute for Theoretical Physics, Kyoto University
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Kunitomo Hiroshi
Yukawa Institute For Theoretical Physics Kyoto University
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Hotta Kenji
Department of Oceanic Architecture and Engineering, Nihon University
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吉川 圭二
Department Of Physics Osaka University
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Hiroshi Kunitomo
Yukawa Institute For Theoretical Physics Kyoto University
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Hotta Kenji
Department Of Oceanic Architecture And Engineering College Of Science And Technology Nihon Universit
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Hotta Kenji
Department Of Physics Osaka University
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KIKKAWA Keiji
Department of Physics, Osaka University
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Kikkawa Keiji
Department Of Physics Osaka University
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KUNITOMO Hiroshi
Yukawa Institute for Theoretical Physics,Kyoto University
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HOTTA Kenji
Department of Physics,Osaka University
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KIKKAWA Keiji
Department of Physics,Osaka University
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KIKKAWA Keiji
College of General Education, Osaka University
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