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M Low Lower barrier Potential implies lower barrier energy - - PowerPoint PPT Presentation
M Low Lower barrier Potential implies lower barrier energy - - PowerPoint PPT Presentation
Boolean gates (M=0) Threshold logic gates (M=1) Multiple valued logic (?) Analog (low precision) 1 M Low Lower barrier Potential implies lower barrier energy Applied potential Energy Switching errors savings are
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1
M
Threshold logic gates (M=1) Boolean gates (M=0) Analog (low precision) Multiple valued logic (?)
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Applied potential Low
Energy savings
Temperature Potential barrier Thermal motion
- f electrons
Applied potential needed to move electron across barrier Lower barrier implies lower energy Switching errors are possible since electrons can be in the wrong position due to thermal agitation
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What’s cooking … on the wires
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C D A B a Example L = 4a N = number of e N = 1 P < 0.25 L
Shot noise
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“In an actual cell, the pyrophosphate concentration is kept low by hydrolysis, ensuring that only the copying process
- ccurs, not its inverse. The whole RNA
polymerase system is not particularly efficient as far as energy use goes: it dissipates about 100kT per bit. Less could be wasted if the enzyme moved a little more slowly (and of course, the reaction rate does vary with concentration gradient), but there has to be a certain speed for the sake of life! Still, 100kT per bit is considerably more efficient than the 108kT thrown away by a typical transistor!” (~37,600kT in 90nm, ~15,300kT in 65nm)
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… and how about the low level?
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Instead of conclusions …
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head !
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Small Very
2 3
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