The yield-to-maturity on an indexed bond is already in real terms because the coupons are indexed to inflation.

这种债券的到期收益率,就是实际收益率,因为票息已经被通胀指数化了

耶鲁公开课 - 金融市场课程节选

r1 is the yield on the one-period bond and r2 is the yield on the two-period bond.

1是一年期债券的收益率,r2则是两年期债券的收益率

耶鲁公开课 - 金融市场课程节选