Wiggly relativistic strings
نویسندگان
چکیده
منابع مشابه
Wiggly relativistic strings.
We derive the equations of motion for general strings, i.e. strings with arbitrary relation between tension τ and energy per unit length ǫ. The renormalization of τ and ǫ that results from averaging out small scale wiggles on the string is obtained in the general case to lowest order in the amount of wiggliness. For Nambu-Goto strings we find deviations from the equation of state ǫτ = constant ...
متن کاملStretching wiggly strings.
How does the amplitude of a wiggle on a string change when the string is stretched? We answer this question for both longitudinal and transverse wiggles and for arbitrary equation of state, i.e., for arbitrary relation between the tension τ and the energy per unit length ǫ of the string. This completes our derivation of the renormalization of string parameters which results from averaging out s...
متن کاملWiggly Strings in Linearized Brans-dicke Gravity
The metric around a wiggly cosmic string is calculated in the linear approximation of Brans-Dicke theory of gravitation. The equations of motion for relativistic and nonrelativistic particles in this metric are obtained. Light propagation is also studied and it is shown that photon trajectories can be bounded. PACS numbers: 98.80.Cq 04.50.+h 11.27.+d Electronic mail: [email protected] El...
متن کاملRENORMALIZATION Of GRAVITATIONAL SELF INTERACTION FOR WIGGLY STRINGS
It is shown that for any elastic string model with energy density U and tension T , the divergent contribution from gravitational self interaction can be allowed for by an action renormalisation proportional to (U − T ). This formula is applied to the important special case of a bare model of the transonic type (characterised by a constant value of the product UT ) that represents the macroscop...
متن کاملNon relativistic strings may be approximated by relativistic strings
AMS classification : 35Q, 35Q60, 49, 53 Abstract We show that bounded families of global classical relativistic strings that can be written as graphs are relatively compact in C topology, but their accumulation points include many non relativistic strings. We also provide an alternative formulation of these relativistic strings and characterize their “semi-relativistic” completion. 1 Some relat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1992
ISSN: 0031-9007
DOI: 10.1103/physrevlett.69.2611