Y. Shimazu: "Tunability of Excited-State Energy Levels of Four-Josephson-Junction Circuit in Crossover from Double-Well to Single-Well Potential", J. Phys. Soc. Jpn. 80, 054701 (7 pp)(2011).

Y. Shimazu, M. Nakajima, M. Takahashi, N. Okamura, K. Yoshiyama: "Simulation of an asymmetric lineshape of a resonant dip observed in a switching-current measurement of a superconducting flux qubit", Proceedings of 24th International Symposium on Superconductivity (ISS 2011), to be pulished in Physics Procedia (2012).

Y. Shimazu, M. Nakajima, M. Takahashi, N. Okamura, K. Yoshiyama: "Switching-current measurement and switching-probability measurement of resonant peaks in a superconducting flux qubit" Abstracts of 24th International Symposium on Superconductivity (ISS 2011), p.274 (2011).

Y. Shimazu, K. Ochiai, E. Shinozaki: "Doublet splitting due to intercell tunneling in three-Josephson- junction flux qubit", Physica C 470, 1555-1557 (2010).

Y. Shimazu: "Excited-State Energy Levels of Four-Josephson-Junction Circuit in Crossover from Double-Well to Single-Well Potential", Abstracts of International Symposium on Nanoscale Transport and Technology (ISNTT2011), p.121 (2011).

Y. Shimazu, K. Ochiai, E. Shinozaki, T. Inayama, M. Nakajima, T. Oouchi, M. Takahashi: "Large tunability of energy gap and energy-level splitting in double-loop four-Josephson-junction flux qubit", Proceedings of 2010 International Symposium on Physics of Quantum Technology, p.152 (2010).