Maxwell Demon问题中的信息流与计算
Information Flow and Computation in the Maxwell Demon Problem
摘要:
在本文中,我们研究麦克斯韦恶魔问题从信息论和计算的角度来看。特别是,我们计算所需的通信信道的容量,传输信息,从恶魔。等价地,这是在计算机磁带上存储信息所需的位数。我们表明,在一个简单的模型麦克斯韦恶魔,宇宙的熵增加了至少一个量η =0.83999552比特每粒子从未排序的粒子和一个量η *=2.37314从一个排序状态到另一个排序状态。
英文摘要:
In this paper we examine the Maxwell Demon problem from an information theoretic and computational point-of-view. In particular we calculate the required capacity of a communication channel that transports information to and from the Demon. Equivalently, this is the number of bits required to store the information on a computer tape. We show that, in a simple model for the Maxwell Demon, the entropy of the universe increases by at least an amount eta=0.83999552 bits per particle in going from unsorted to sorted particles and by an amount eta*=2.37314 in going from one sorted state to another sorted state.
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