Reply to Comment on "A no-go result for the quantum damped harmonic oscillator"
Abstract
In a recent paper, deguchi, Deguchi and Fujiwara claim that our results in BGR are wrong, and compute what they claim is the square integrable vacuum of their annihilation operators. In this brief note, we show that their vacuum is indeed not a vacuum, and we try to explain what is behind their mistake. We also consider a very simple example clarifying the core of the problem.
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