Revisiting D-term inflation with gravitational waves and Hubble tension
  We revisit D-term inflation with the bounds of the cosmic string tension from
gravitational wave observations and consider the possible deviation of the
spectral index compared with $\Lambda$CDM model in light of pre-recombination
resolutions of the Hubble tension. D-term inflation requires very small
coupling constants under these constraints. We show that large coupling
constants can be achieved in the case of D-term inflation on the brane.
