Equation 31 · Part 1 · The Clock That Comes Back Wrong by Exactly Its Mass

Symbol X

X=-i\mathbf b\cdot\mathbf P/\hbar

X

What this part means

X is part of the quantity the equation computes from the expression on the right.

Its job in the formula

X is part of the quantity the equation computes from the expression on the right.

Full expressionSymbol XArticle meaning

The passage around this formula

That triviality is what makes the loop phase exact rather than approximate. Write X=-i $\mathbf b$ $\cdot$ $\mathbf P$ / $\hbar$ and Y=-i $\mathbf v$ $\cdot$ $\mathbf K$ / $\hbar$ . Their commutator is

Read this part in the article →

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.

Open the illustrated variables: a letter stands for a value guide →

See this notation across published equations →

The article lists its research sources here.