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Lloyd,Ultimate physical limits to computation,Nature406(2000) 1047–1054, [quant-ph/9908043]

3 Pith papers cite this work. Polarity classification is still indexing.

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abstract

Computers are physical systems: what they can and cannot do is dictated by the laws of physics. In particular, the speed with which a physical device can process information is limited by its energy and the amount of information that it can process is limited by the number of degrees of freedom it possesses. This paper explores the physical limits of computation as determined by the speed of light $c$, the quantum scale $\hbar$ and the gravitational constant $G$. As an example, quantitative bounds are put to the computational power of an `ultimate laptop' with a mass of one kilogram confined to a volume of one liter.

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hep-th 3

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2026 3

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A Timelike Quantum Focusing Conjecture

hep-th · 2026-04-29 · unverdicted · novelty 5.0

A timelike quantum focusing conjecture implies a complexity-based quantum strong energy condition and a complexity bound analogous to the covariant entropy bound for suitable codimension-0 field theory complexity measures.

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  • A Timelike Quantum Focusing Conjecture hep-th · 2026-04-29 · unverdicted · none · ref 48

    A timelike quantum focusing conjecture implies a complexity-based quantum strong energy condition and a complexity bound analogous to the covariant entropy bound for suitable codimension-0 field theory complexity measures.