Maxwell ’ s demon
نویسندگان
چکیده
منابع مشابه
EXORCIST XIV : The Wrath of Maxwell ’ s Demon . Part II . From Szilard to Landauer and Beyond
In this second part of our two-part paper we review and analyse attempts since 1950 to use information theoretic notions to exorcise Maxwell’s Demon. We argue through a simple dilemma that these attempted exorcisms are ineffective, whether they follow Szilard in seeking a compensating entropy cost in information acquisition or Landauer in seeking that cost in memory erasure. In so far as the De...
متن کاملChapter 2 Review of Maxwell ’ s Demon
The paradox of Maxwell’s demon was proposed in a letter from James C. Maxwell to Peter G. Tait for the first time. In the letter, Maxwell mentioned his gedankenexperiment of “a being whose faculties are so sharpened that he can follow every molecule” [1]. The being may be like a tiny fairy, and may violate the second law of thermodynamics. In 1874, William Thomson, who is also well-known as Lor...
متن کاملInformation-driven current in a quantum Maxwell demon.
We describe a minimal model of a quantum Maxwell demon obeying Hamiltonian dynamics. The model is solved exactly, and we analyze its steady-state behavior. We find that writing information to a quantum memory induces a probability current through the demon, which is the quantum analog of the classical Maxwell demon's action. Our model offers a simple and pedagogical paradigm for investigating t...
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In a simple model of Maxwell’s demon endowed with a Turing-type memory tape, we present an operational derivation of the Maxwell-Boltzmann distribution in the equilibrium statistical mechanics. It is based solely on the combined gas law of the elementary thermodynamics for the model of the memory. Equilibrium is defined in terms of the stability of thermodynamic work F against noise, where F is...
متن کاملDemons : Maxwell ’ S Demon , Szilard ’ S Engine and Landauer ’ S Erasure – Dissipation Laszlo
This talk addressed the following questions in the public debate at HoTPI: (i) energy dissipation limits of switches, memories and control; (ii) whether reversible computers are possible, or does their concept violate thermodynamics; (iii) Szilard’s engine, Maxwell’s demon and Landauer’s principle: corrections to their exposition in the literature; (iv) whether Landauer’s erasure– dissipation p...
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تاریخ انتشار 2014