On 2/22/2019 2:40 PM, agrayson2...@gmail.com wrote:
Gravitons, as quanta of the metric field, are already relativistic
particles and covariant.
*I thought it's the equations of motion for the particular force, not
the mediating particles, that must be covariant. On a related topic
for this thread, where does GR depart from Mach's principle? That is,
what did Einstein implicitly (or explicitly) deny about Mach's
principle? TIA, AG *
Einstein thought he would develop a theory that satisfied Mach's
principle, but as it turned out GR doesn't. For example the metric of
spacetime is a dynamic field and transmit momentum and energy, as shown
by LIGO. Mach's idea of spacetime as purely a relation between material
events couldn't do that.
Brent
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