When is a bit worth much more than kT ln2?

Artemy Kolchinsky; Can Gokler; David Wolpert; Iman Marvian; Kevin Thompson; Oles Shtanko; Peter Shor; Seth Lloyd; Zi-Wen Liu

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When is a bit worth much more than kT ln2?

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arxiv 1705.09598 v1 pith:JIP22BAJ submitted 2017-05-26 cond-mat.stat-mech

Can Gokler , Artemy Kolchinsky , Zi-Wen Liu , Iman Marvian , Peter Shor , Oles Shtanko , Kevin Thompson , David Wolpert

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Seth Lloyd

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classification cond-mat.stat-mech

keywords informationenergeticfundamentalphysicalprocessvalueenergyerase

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Physical processes thatobtain, process, and erase information involve tradeoffs between information and energy. The fundamental energetic value of a bit of information exchanged with a reservoir at temperature T is kT ln2. This paper investigates the situation in which information is missing about just what physical process is about to take place. The fundamental energetic value of such information can be far greater than kT ln2 per bit.

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