5 ms·
> The landauer limit at 4.2K is 4.019×10^-23 J (joules). At room temperature.
by centimeter 6y ago
> The landauer limit at 4.2K is 4.019×10^-23 J (joules).
At room temperature.
- 6nf 6y agoHmm that's interesting. At lower temperatures, would the limit also be lower? Or what's the relationship between temp and Landauer?
- marcosdumay 6y agoIt's linear, so there's an almost 100 times decrease.
- nicoburns 6y agoWhat does the 4.2K mean then? I assumed that was the temperature in kelvin.
- namibj 6y agoThat number checks out to be accurate to just over 4 significant digits. Divide the 4.019×10^-23 J by 4.2 K and ln(2), and you get a result just a hair smaller than the Boltzmann constant. Unless the formula at [0] is wrong, in which case my calculations would also be wrong. [0]: https://en.wikipedia.org/wiki/Landauer%27s_principle#Equation https://en.wikipedia.org/wiki/Landauer%27s_principle#Equatio...
- Arnavion 6y agoNot sure what you're trying to say. Room temperature is 293K, and at temperature the Laundauer limit is 2.8E-21 J. The chips in the article were cooled to 4.2 K, and at that temperature the Laundauer limit is 4.0E-23 J.