Equation 60 · Part 3 · The Entry a Relabeling Cannot Write

Symbol I_B

\Lambda^\dagger(H_S) = H_S \otimes I_B

I_B

What this part means

$I_B$ is an input to the expression that computes the quantity on the left.

Its job in the formula

$I_B$ is an input to the expression that computes the quantity on the left.

Full expressionSymbol I_BArticle meaning

The passage around this formula

Return to the genuine coarse-graining set aside earlier: $\Lambda(\rho)$ = $\mathrm{Tr}_B$ [ $\rho$ ] , $\mathcal H_c$ = $\mathcal H_S$ , $H_c$ = $H_S$ . The dual embeds a system observable back into the full space without touching the bath, $\Lambda^\dagger(H_S)$ = $H_S$ $\otimes$ $I_B$ , so

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Learn the underlying idea

A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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Sources cited in the article section

[13] Quantum Thermodynamics ↗

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