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Temporal order of events seen by different Lorentz observers

  • #1
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Homework Statement



Three events, ##A##, ##B##, ##C##, are seen by observer ##\mathcal{O}## to occur in the order ##ABC##. Another observer, ##\mathcal{\bar{O}}##, sees the events to occur in the order ##CBA##. Is it possible that a third observer sees the events in the order ##ACB##? Support your conclusion by drawing a spacetime diagram.

Homework Equations



The Attempt at a Solution



Here's a particular placement of the events ##A##, ##B##, ##C## in the order ##ABC## as seen by observer ##\mathcal{O}## (##t##-##x## coordinate system) and in the order ##CBA## as seen by observer ##\mathcal{\bar{O}}## (##t'##-##x'## coordinate system):

IMAG0113.jpg


I find that not all placements of the events ##A##, ##B##, ##C## on the spacetime diagram simultaneously produce the orders ##ABC## and ##CBA## as seen by two different observers ##\mathcal{O}## and ##\mathcal{\bar{O}}##.

How I proceed with demonstrating whether or not a third observer sees the events in the order ##ACB##?
 

Answers and Replies

  • #2
TSny
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