A STUDY OF MULTISCALE DENSITY FLUCTUATIONS*
Nils P. Bas s e#
Plas m a Scie nce a n d Fusion Ce n ter, Massach usetts Instit ute of Tec h nology, MA - 0 2 1 3 9 Ca m b rid ge,
USA
We h ave in ea rlier wor k1 re p o r t e d o n in t rig ui ng p a r allels b e t wee n d e n si ty fl uct u a tio n p o we r ver s u s wave n u m b e r o n s m all (m m) a n d large (Mpc) s cales. In t hi s co n t rib u tio n we ex p a n d u p o n o u r p r evio u s s t u die s o f m e a s u r e m e n t s m a d e in f u si o n pl a s m a s a n d u si ng co s m ol ogical d a t a, r e s p ec tively.
Base d o n p r e dic tio n s fr o m cla s sical fl ui d t u r b ule n ce t h e o ry, we a rg u e t h a t o u r o b s e rva tio n s a re co n si s t e n t wit h 2D t u r b ule n ce. Th e si milar d e p e n d e ncie s o f d e n si ty fl uc t u a ti o n s o n t h e s e di s p a r a t e sc ales m ig h t in dica t e a co m m o n o rigi n
#C u r r e n t a d d r e s s: ABB S wit z erla n d Ltd., Cor por ate Researc h, Segel hofstr asse 1, CH - 5 4 0 5 Bade n - Dätt wil, S wit z erla n d
1. N. P. Bas s e, “De n sity fl uc t u a tio n s o n m m a n d Mpc s c ale s”, Phys. Lett. A, vol. 3 4 0, p. 4 5 6, 2 0 0 5.
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* Work s u p p o r t e d by t h e U.S. De p a r t m e n t of Energy
