The Long Range Gravitational Potential Energy Between Strings
| Autor: | Mark B. Wise, Margaret E. Wessling |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2001 |
| Předmět: |
Physics
High Energy Physics - Theory Nuclear and High Energy Physics Range (particle radiation) Dimension (graph theory) FOS: Physical sciences Potential energy Loop (topology) Massless particle High Energy Physics - Theory (hep-th) Constant (mathematics) Unit (ring theory) Mathematical physics Quintessence |
| Popis: | We calculate the gravitational potential energy between infinitely long parallel strings with tensions \tau_1 and \tau_2. Classically, it vanishes, but at one loop, we find that the long range gravitational potential energy per unit length is U/L = 24G_N^2\tau_1\tau_2/(5 \pi a^2) + ..., where a is the separation between the strings, G_N is Newton's constant, and we set \hbar = c =1. The ellipses represent terms suppressed by more powers of G_N \tau_i. Typically, massless bulk fields give rise at one loop to a long range potential between p-branes in space-times of dimension p+2+1. The contribution to this potential from bulk scalars is computed for arbitrary p (strings correspond to p=1) and in the case of three-branes its possible relevance for cosmological quintessence is commented on. Comment: 10 pages, 6 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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