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Maxwell demons, feedback control, and fluctuation theorems
Published on 2012-10-164030 Views
As illustrated by the Maxwell demon and its sequels, feedback can be utilized to convert information into useful work. The recently developed fluctuation theorems turn out to be a powerful tool to ana
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Presentation
Maxwell demons, feedback control, and fluctuation theorems (1)00:00
Maxwell demons, feedback control, and fluctuation theorems (2)04:09
The Szilard engine04:15
“Weak” irreversibility (1)09:14
“Weak” irreversibility (2)13:13
Irreversibility and dissipation (1)15:08
Irreversibility and dissipation (2)16:17
Irreversibility and dissipation (3)17:21
Fluctuation theorems (1)18:38
Fluctuation theorems (2)20:39
“Soft” Szilard26:47
Feedback vs. blind protocols28:24
Fluctuation theorems30:47
Fluctuation theorems and control33:21
Optimal control protocol (1)34:38
Optimal control protocol (2)36:38
An example: multiparticle Szilard engines (1)37:27
An example: multiparticle Szilard engines (2)39:49
Many particles42:12
Why the protocol extracts energy?43:49
Conclusions44:46
Thanks45:43