Work

Gibbons-Hawking entropy and BMN strings

Year: 2026

Type: article

Abstract: We provide some up-to-date discussions related to cosmological event horizon and entropy of our Universe, then introduce an intriguing idea that there may be a universal finite upper bound for entropy accessible to an observer in consistent theories of quantum gravity. We argue that the Berenstein-Maldacena-Nastase (BMN) strings provide a test of the idea. More speculatively, in an optimistic scenario, this also provides a possible estimate of the cosmological constant.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/l55s-g5zk

Author: Min-xin Huang

Institutions: University of Science and Technology of China, Peng Huanwu Center for Fundamental Theory

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Natural Science Foundation of China, Southeast University

Awards: G2012042336, G5479278984, G767428274