Defining entropy bounds | Zendy

Don N. Page | Zendy

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Defining entropy bounds

Author(s) -

Don N. Page

Publication year - 2008

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2008/10/007

Subject(s) - physics , semiclassical physics , theoretical physics , mathematical physics , spacetime , entropy (arrow of time) , gravitation , quantum field theory , quantum gravity , quantum , counterexample , quantum mechanics , mathematics , discrete mathematics

Bekenstein's conjectured entropy bound for a system of linear size R andenergy E, S < 2 pi E R, has counterexamples for many of the ways in which the"system," R, E, and S may be defined. Here new ways are proposed to definethese quantities for arbitrary nongravitational quantum field theories in flatspacetime, such as defining R as the smallest radius outside of which onlyvacuum expectation values occur. Difficulties of extending these definitions togravitational quantum theories are noted.Comment: 30 pages, LaTeX, rewritten Introduction and references adde

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