Equation 5 · Part 2 · From Origins to Frontier: A History of Stochastic Thermodynamics and Complex Systems
Symbol T
What this part means
T is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
T is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol T→Article meaning
The passage around this formula
…was that logically irreversible operations — operations that map two or more distinct input states onto the same output state, of which erasing a bit of memory is the paradigm case — must dissipate at least T 2 of heat into the environment per bit erased, regardless of how the erasure is physically implemented. Logically reversible operations, by contrast, carry no such lower bound.
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
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Sources cited in the surrounding passage
These citations provide research context; check each source for the exact claim it supports.