Comment on a universal upper bound on the entropytoenergy ratio for bounded systems
Abstract
Some difficulties are noted with Bekenstein's arguments that a system with energy E and effective radius R has an entropy bound S<=S_{B}≡2πERℏc. The inequality appears to be valid only for large S_{B}. For that regime an upper bound which is generally stronger is proposed.
 Publication:

Physical Review D
 Pub Date:
 August 1982
 DOI:
 10.1103/PhysRevD.26.947
 Bibcode:
 1982PhRvD..26..947P