Absorption Cross Section and Decay Rate of Dilatonic Black Strings

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Dilatonic Black Holes , Naked Singularities and Strings

We extend a previous calculation which treated Schwarzschild black hole horizons as quantum mechanical objects to the case of a charged, dilaton black hole. We show that for a unique value of the dilaton parameter a, which is determined by the condition of unitarity of the S matrix, black holes transform at the extremal limit into strings.

متن کامل

Perturbations and absorption cross-section of infinite-radius black rings

We study scalar field perturbations on the background of non-supersymmetric black rings and of supersymmetric black rings. In the infinite-radius limit of these geometries, we are able to separate the wave equation, and to study wave phenomena in its vicinities. In this limit, we show that (i) the non-supersymmetric case is stable against scalar field perturbations, (ii) the low energy absorpti...

متن کامل

Absolute absorption cross-section and photolysis rate of I2

Absolute absorption cross-section and photolysis rate of I2 A. Saiz-Lopez, R. W. Saunders, D. M. Joseph, S. H. Ashworth, and J. M. C. Plane School of Environmental Sciences, University of East Anglia, Norwich, UK School of Chemical Sciences and Pharmacy, University of East Anglia, Norwich, UK Received: 23 February 2004 – Accepted: 8 April 2004 – Published: 5 May 2004 Correspondence to: J. M. C....

متن کامل

Fermion absorption cross section of a Schwarzschild black hole

We study the absorption of massive spin-half particles by a small Schwarzschild black hole by numerically solving the single-particle Dirac equation in Painlevé–Gullstrand coordinates. We calculate the absorption cross section σ(E) for a range of gravitational couplings Mm/mP 2 and incident particle energies E. At high couplings, where the Schwarzschild radius RS is much greater than the wavele...

متن کامل

Dilatonic Global Strings

We examine the field equations of a self-gravitating global string in low energy superstring gravity, allowing for an arbitrary coupling of the global string to the dilaton. Massive and massless dilatons are considered. For the massive dilaton the spacetime is similar to the recently discovered non-singular time-dependent Einstein self-gravitating global string, but the massless dilaton generic...

متن کامل

ذخیره 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: Advances in High Energy Physics

سال: 2018

ISSN: 1687-7357,1687-7365

DOI: 10.1155/2018/8504894