Equation 19 · Part 1 · A Reference Frame Becomes Classical by Publishing Its Orientation
Symbol U_R
What this part means
a unitary representation of G.
Its job in the formula
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 U_R→Article meaning
Where the article explains it
e is the identity orientation, is a unitary representation of G , and is the chosen fiducial state.
The passage around this formula
This is a definition. e is the identity orientation, is a unitary representation of G , and is the chosen fiducial state. Nothing in the equation makes g absolute. Changing the reference frame by h changes the coordinate label and representation together.
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
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