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cperciva
on May 29, 2023
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Landauer's Principle
A NAND gate doesn't erase information; you still have the inputs. In Quantum computers it's more a matter of "overwriting" a qubit with a new value.
dreamcompiler
on May 29, 2023
[–]
Every gate that has more inputs than outputs erases information. (NOT gates don't erase information.)
Quantum gates generally have the same number of outputs as inputs, so they don't erase.
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