Our original article1 wrongly describes an approximation that was applied on page 036116-3: “At terahertz intraburst rates and in the low-N regime, the temporal coordinates tn = nΔt of the burst pulses are sufficiently small compared to the chirped pulse duration τs, hence the approximation α(nΔt)2 ≪ 0 can be done, and the temporal shift of the compressed pulse spectrum contribution Ẽc(P)ω(tnΔt) can be neglected.” The correct approximation required and assumed in the calculation is |α(nΔt)2| ≪ 1.

The original article’s analysis, findings, and conclusions remain the same.

1.
V.
Stummer
,
T.
Flöry
,
M.
Schneller
,
E.
Kaksis
,
M.
Zeiler
,
A.
Pugžlys
, and
A.
Baltuška
, “
Frequency-mode-stable regenerative amplification at terahertz burst rates
,”
APL Photonics
9
,
036116
(
2024
).