We have noticed an error in our article.1 In the original publication (about 300 mK experiments), Coulomb blockade oscillations (CBOs) measured on a different temperature condition (at about 200 mK) are shown in the inset of Figure 4. We omit the inset and correct the figure as shown below. The correction does not change the photon-counting data and the scientific conclusions of the article. The authors apologize for this error. As typical examples of CBOs of quantum dot detectors at 300 mK, we refer to our previous publication.2 

1.
K.
Ikushima
,
A.
Ito
, and
S.
Okano
,
Appl. Phys. Lett.
104
,
052112
(
2014
).
2.
K.
Ikushima
and
S.
Komiyama
,
C. R. Phys.
11
,
444
(
2010
).