Exploring molecular superfluidity in hydrogen clusters

H Otani, S Kuma, S Miura, M Mustafa, JCW Lee… - Science …, 2025 - science.org
Molecular hydrogen (H2) has long been predicted to exhibit superfluidity—a state of zero
viscosity—at extremely low temperatures. However, its existence remains under debate …

Electronic spectroscopy of Mg-phthalocyanine embedded in cold hydrogen clusters produced by a pulsed nozzle

H Otani, H Nakahara, H Goto, S Kuma… - The Journal of Chemical …, 2021 - pubs.aip.org
Cold clusters of molecular hydrogen were created using a pulsed nozzle. The
thermodynamical states of the clusters were characterized by measuring the cluster beam …