### Profile

Profile

Manaka Okuyama

Assistant Professor, Tanaka-Ohzeki group, Graduate School of Information Science, Tohoku University

### Contact Information

Contact Information

- Address: Graduate School of Information Sciences, Tohoku University, Aramaki-Aza-Aoba 6-3-09, Aoba-ku, Sendai 980-8579, Japan
- E-mail: manaka.okuyama.d2(at)tohoku.ac.jp

### Research Interests

Research Interests

- Classical nonlinear integrable systems
- Optimal control theory
- Mean-field quantum spin systems
- Quantum speed limit, classical speed limit and energy-time uncertainty relation
- Shortcuts to adiabaticity
- Quantum annealing

### Papers

Papers

- M. Okuyama and M. Ohzeki, "An exact solution of the partition function for mean-field quantum spin systems without the static approximation", arXiv:1808.09707.
- M. Okuyama and M. Ohzeki, "A useful fundamental speed limit for the imaginary-time Schrodinger equation", arXiv:1806.09040.
- M. Okuyama, R. Takahashi and M. Ohzeki , "Comment on "Energy-time uncertainty relation for driven quantum systems" and "Quantum Speed Limit for Non-Markovian Dynamics"", arXiv.1802.00995.
- M. Okuyama and M. Ohzeki, "Quantum speed limit is not quantum", Phys. Rev. Lett.
**120**, 070402 (2018), arXiv:1710.03498. - M. Okuyama and K. Takahashi, "Quantum-classical correspondence of shortcuts to adiabaticity", J. Phys. Soc. Jpn.
**86**, 043002 (2017), JPSJ Editors' Choice, arXiv:1701.07927. - M. Okuyama and K. Takahashi, "From classical nonlinear integrable systems to quantum shortcuts to adiabaticity", Phys. Rev. Lett. 117, 070401 (2016), arXiv:1603.01053.
- M. Okuyama, Y. Yamanaka, H. Nishimori, and M. M. Rams, "Anomalous behavior of the energy gap in the one-dimensional quantum XY model", Phys. Rev. E
**92**, 052116 (2015), arXiv:1508.02814.

Thesis

Master Thesis (Department of Physics, Tokyo Institute of Technology )

Title: Shortcuts to Adiabaticity and Classical Nonlinear Integrable Systems

Supervisor: Prof. Hidetoshi Nishimori

Doctoral Thesis (Department of Physics, Tokyo Institute of Technology )

Title: Study on real and imaginary time dynamical effects in quantum and classical systems

Supervisor: Prof. Hidetoshi Nishimori