Synchronization Gauge Definition | What is it?

bernhard.rothenstein
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Please give me a defnition of the concept "synchronization gauge" I find in papers.
 
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bernhard.rothenstein said:
Please give me a defnition of the concept "synchronization gauge" I find in papers.
Rizzi et al, Synchronization Gauges and the Principles of Special Relativity[/color] give this definition:

"A synchronization gauge is a (very particular) group of transformations, internal to the theory, which leave the observables unchanged (”saving the phenomena”)" (page 2, footnote 3).​

Thus I interpret this to correspond to a whole family of coordinate systems available for a single observer to choose from, all agreeing the same "measurements" e.g. for observer's proper time. Examples are:

- the \epsilon-parameterised family of Reichenbach transformations
- the \epsilon-parameterised family of Mansouri-Sexl transformations
- the \epsilon-parameterised family of generalised Selleri transformations

(all for a fixed value of V for a given pair of observers).
 

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