Symbol in context

$J_\tau$

This entry links every published equation using this exact notation. Its meaning may change between equations.

Meanings in context

Article-grounded definition

an integrated current observed for time $\tau$ , such as net molecular steps or transported ions.

J_\tau

an integrated current observed for time $\tau$ , such as net molecular steps or transported ions.

\frac{\operatorname{Var}(J_\tau)}{\langle J_\tau\rangle^2} \ge \frac{2}{\langle\Sigma_\tau\rangle}.

This equation states a bound: one expression must stay on the indicated side of the other under the article’s assumptions.