Computational capacity of the universe

被引：235

作者：

Lloyd, S ^{[1
]}

机构：

[1] MIT 3 160, Dept Mech Engn, dArbeloff Lab Informat Syst & Technol, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.88.237901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

All physical systems register and process information. The laws of physics determine the amount of information that a physical system can register (number of bits) and the number of elementary logic operations that a system can perform (number of ops). The Universe is a physical system. The amount of information that the Universe can register and the number of elementary operations that it can have performed over its history are calculated. The Universe can have performed 10(120) ops on 10(90) bits (10(120) bits including gravitational degrees of freedom).

引用

页数：4

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