Jul 20 – 24, 2015
Frankfurt Institute for Advanced Studies
Europe/Berlin timezone

Size scaling of self gravitating polymers and strings

Jul 23, 2015, 5:00 PM
Room 0.200 (FIAS)

Room 0.200



Shoichi Kawamoto (Chung Yuan Christian University)


We study a statistical ensemble of a single polymer with self gravitational interaction. This is a model of a gravitating string --- the precursor of a black hole. We analyze averaged sizes by mean field approximations with an effective Hamiltonian a la Edwards with Newtonian potential as well as a contact repulsive interaction. We find that there exists a certain scaling region where the attractive and the repulsive forces balance out. The repulsive interaction pushes the critical gravitational coupling to a larger value, at which the size of a polymer becomes comparable to its Schwarzschild radius, and as a result the size of the corresponding black hole increases considerably.

Primary author

Shoichi Kawamoto (Chung Yuan Christian University)


Prof. Toshihiro Matsuo (National Institute of Technology, Anan College)

Presentation materials