Millimeter and submillimeter spectroscopy is essential for probing the chemical evolution of interstellar molecules in star-forming regions. While instruments like ALMA have revealed the existence of many complex organic molecules in space, the lack of accurate spectroscopic data, especially for isotopologues and high-energy states, limits interpretations of the observed data. This review outlines the current challenges in molecular spectroscopy for astrochemistry and presents both an introduction to the SUMIRE spectrometer itself and the recent laboratory efforts that make use of it.

Since Hawking raised the paradox that black holes lose their information and do not obey quantum mechanics in the 1970s, it has provoked much debate, but no complete conclusion has yet been reached to everyone’s satisfaction. However, in the process of trying to understand the issue, many new ideas have emerged. In this article, I would like to review the nature of the black hole information paradox and give a broad overview of how various researchers have tried to solve this paradox.

Motivated by Bohr’s correspondence principle, we reexamine magnetotransport beyond the weak-field limit. From the Kubo formula we uncover a factorization, (quantum) = (quantum oscillation) × (classical), implying that the quantum result of the non-oscillatory galvanomagnetic effect equals the classical result even at strong magnetic fields.

In explosive astrophysical events, neutrino transport plays a crucial role in shaping their dynamics and observables. However, most numerical models to date employ classical transport, ignoring quantum kinetics of neutrinos, where their flavors can change due to nonlinear collective oscillations. By modeling the asymptotic flavor eigenstates, it becomes possible to incorporate the effects of the flavor conversion into classical transport frameworks without directly solving the full quantum kinetic equations.