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Questions tagged [landauers-principle]

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Is it necessary to assume that equivalent microstates cannot get transformed into inequivalent microstates to derive the Landauer principle?

The Landauer erasure principle states that to erase a bit of information from a system, the entropy of the environment will be increased by at least $k_B\log2$, or equivalently, it costs at least an ...
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1answer
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Is this a counterexample to Landauer's principle?

Landauer's principle states that if I have a physical system with two possible states, and that system begins in an unknown state, then putting the system into a known state takes the addition of at ...
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1answer
471 views

Foundation of Landauer's principle [duplicate]

I have asked this on CS subsite but since there was no reply yet and the question is also somewhat related to physics, I think it will be appropriate to post here as well. Landauer's principle states ...
3
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1answer
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Landauers Principle Derivation

I read about Landauer's principle and was wondering about the implications from it's original derivation. Landauer derived his principle straight foward from the second law, but I see people favoring ...
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0answers
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Is there a trade-off between computation speed and heat creation in relation to the Landauer Limit?

In this article, an experiment is referenced in which information was converted into energy via erasure. It is said that the slower the erasure took place, the less energy was released, and that the ...
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1answer
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If we had a “perfectly efficient” computer and all the energy in the Milky-way available, what number could it count to?

The idea for this question comes from an example in cryptography, where supposedly 256-bit symmetric keys will be enough for all time to come (brute-forcing a 256-bit key is sort-of equivalent to ...
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2answers
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Is the Landauer limit reversible

As I understand it, the Landauer limit, kTln(2), is the minimum amount of energy to erase a bit. Is it also the minimum amount to create a bit? I'm asking statistical, like Avogadro's number of ...
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6answers
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Is there a thermodynamic limit on how efficiently you can solve a Rubik's cube?

Suppose I build a machine which will be given Rubik's cubes that have been scrambled to one of the $\sim 2^{65}$ possible positions of the cube, chosen uniformly at random. Is it possible for the ...
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1answer
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How does Landauer's Principle apply in quantum (and generally reversible) computing

I understand that a reversible computer does not dissipate heat through the Landauer's principle whilst running - the memory state at all times is a bijective function of the state at any other time. ...