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Bekenstein Bound

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The upper bound of the amount of information inside a spherical region with a given energy. Information in this context is to be understood as distinguishable (quantum) states. Due to the uncertainty relations it is possible to derive a bound of the formScience > Physics > Information Physics

Science > Information Theory

Technology > Application > ISOtech

Technology > Technology Type or Material > Virtual/Infotech

I <= (2 Pi E R)/(hbar c ln2)

where I is the information, E is the energy, R is the radius, hbar Plank's constant, c the speed of light. It can also be written as

I <= k M R

Where M the mass in the region and k a constant having the value ~2.57686*10^43 bits/(m kg). This bound was derived by J.D. Bekenstein in another but equivalent form, relating the entropy of black holes to their area (S = A/(4 hbar G), where A is the area of the event horizon).

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Development Notes

Text by Anders Sandberg in his Transhumanist Terminology

Initially published on 08 October 2001.

Initially published on 08 October 2001.