Question dedicated to the memory of Steven Weinberg, whose books I read as a child and undergraduated student!

Beyond using gravitational waves, are out there any other ideas or proposals to detect the relic graviton background with $T\leq 0.9K$?

  • $\begingroup$ Why are you excluding gravitational waves? $\endgroup$
    – TimRias
    Aug 11, 2021 at 11:48
  • $\begingroup$ I am not excluding them, I only want to know if there are alternative probes to relic gravitons BEYOND gravitational waves... $\endgroup$
    – riemannium
    Aug 11, 2021 at 12:59
  • $\begingroup$ So you want to know if there probes for gravitational waves other than gravitational waves? $\endgroup$
    – TimRias
    Aug 11, 2021 at 13:11
  • $\begingroup$ As I mentioned here, we may never have the technology to detect single gravitons. $\endgroup$
    – PM 2Ring
    Aug 11, 2021 at 13:18
  • $\begingroup$ So are you think about things like detecting the GW background using polarization of the CMB (like BICEP2 originally claimed)? $\endgroup$
    – TimRias
    Aug 12, 2021 at 14:12


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