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- Landauer's_principle abstract "Landauer's principle, first argued in 1961 by Rolf Landauer of IBM, is a physical principle pertaining to the lower theoretical limit of energy consumption of a computation. It holds that "any logically irreversible manipulation of information, such as the erasure of a bit or the merging of two computation paths, must be accompanied by a corresponding entropy increase in non-information bearing degrees of freedom of the information processing apparatus or its environment". (Bennett 2003)Landauer's principle asserts that there is a minimum possible amount of energy required to change one bit of information, known as the Landauer limit:kT ln 2,where k is the Boltzmann constant (approximately 1.38×10−23 J/K), T is the temperature of the circuit in kelvins, and ln 2 is the natural logarithm of 2 (approximately 0.69315).At 25 °C (room temperature, or 298.15 K), the Landauer limit represents an energy of approximately 0.0178 eV, or 2.85 zJ. Theoretically, room‑temperature computer memory operating at the Landauer limit could be changed at a rate of one billion bits per second with only 2.85 trillionths of a watt of power being expended in the memory media. Modern computers use millions of times as much energy.If no information is erased, computation may in principle be achieved which is thermodynamically reversible, and require no release of heat. This has led to considerable interest in the study of reversible computing.Recent experimental studies give further evidence that Landauer's prediction is indeed true.".
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- Landauer's_principle wikiPageExternalLink information-entropy.
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- Landauer's_principle subject Category:Entropy_and_information.
- Landauer's_principle subject Category:Philosophy_of_thermal_and_statistical_physics.
- Landauer's_principle subject Category:Principles.
- Landauer's_principle subject Category:Thermodynamic_entropy.
- Landauer's_principle type Abstraction100002137.
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- Landauer's_principle type Idea105833840.
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- Landauer's_principle comment "Landauer's principle, first argued in 1961 by Rolf Landauer of IBM, is a physical principle pertaining to the lower theoretical limit of energy consumption of a computation. It holds that "any logically irreversible manipulation of information, such as the erasure of a bit or the merging of two computation paths, must be accompanied by a corresponding entropy increase in non-information bearing degrees of freedom of the information processing apparatus or its environment".".
- Landauer's_principle label "Landauer's principle".
- Landauer's_principle label "Landauer-Prinzip".
- Landauer's_principle label "Principio di Landauer".
- Landauer's_principle label "Zasada Landauera".
- Landauer's_principle label "Принцип Ландауэра".
- Landauer's_principle label "ランダウアーの原理".
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