List of Publications

1. "The Nakano-Nishijima-Gell-Mann Formula From Discrete Galois Fields",
   K. Nakatsugawa, M. Ohaga, T. Fujii, T. Matsuyama & S. Tanda,
   arXiv:2008.06859 [hep-ph]


2. "Multivalley Free Energy Landscape and the Origin of Stripe and Quasi-Stripe CDW Structures in Monolayer MX₂ Compounds",
   Keiji Nakatsugawa, Satoshi Tanda & Tatsuhiko N. Ikeda,
   Sci. Rep. 10, Article number: 1239 (2020)
   [PDF]


3. "Time Operators and Time Crystals: Self-Adjointness by Topology Change",
   Keiji Nakatsugawa, Toshiyuki Fujii, Avadh B. Saxena & Satoshi Tanda,
   J. Phys. A 53, 025301 (2020)
   arXiv:1711.10179


4. "Quantum Time Crystal by Decoherence: Proposal with an incommensurate charge density wave ring",
   Keiji Nakatsugawa, Toshiyuki Fujii & Satoshi Tanda,
   Physical Review B 96, 094308 (2017)


5. "Direct observation of mono-layer, bi-layer, and tri-layer charge density waves in 1T-TaS2 by transmission electron microscopy without a substrate", Daiki Sakabe, Zheng Liu, Kazutomo Suenaga, Keiji Nakatsugawa & Satoshi Tanda,
   npj Quantum Materials 2, 22 (2017)
   [PDF]