In the article published in Fiz. Nizk. Temp. 50, 186 (2024) [Low Temp. Phys. 50, 176 (2024)], unfortunately, Eq. (16) contains typos. It must be
χ ( ω ) = 2 cot 1 [ cosh ( ξ 1 ) ] Θ ( ω | ω 0 | + | J | ) Θ ( | ω 0 | + | J | ω ) ( ω | ω 0 | + | J | cosh ( ξ 1 ) ) .
(16)

All subsequent calculations, analysis, and conclusions of the paper used the correct form of the equation and remain unchanged. We apologize for the inconvenience induced by these errors.

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