Manaka Okuyama

Assistant Professor, Tanaka group, Graduate School of Information Sciences, Tohoku University

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• • 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

• Correlation inequalities for spin-glass models

• Classical nonlinear integrable systems

• Mean-field quantum spin systems and optimal control theory

• Quantum speed limit, classical speed limit and energy-time uncertainty relation

• Shortcuts to adiabaticity

• Quantum annealing

1. M. Okuyama and M. Ohzeki, "Threshold theorem in quantum annealing with deterministic analog control errors", arXiv:2301.13075.

2. M. Okuyama and M. Ohzeki, "Mean-field theory is exact for Ising spin glass models with Kac potential in non-additive limit on Nishimori line", arXiv:2301.13051, J. Phys. A: Math. Theor. 56, 325003 (2023).

3. M. Okuyama and M. Ohzeki, "Gibbs-Bogoliubov inequality on Nishimori line", arXiv:2208.12311, J. Phys. Soc. Jpn. 92, 084002 (2023).

4. M. Okuyama, K. Ohki, and M. Ohzeki, "Threshold theorem in isolated quantum dynamics with stochastic control errors", arXiv:2009.11151, Phil. Trans. R. Soc. A. 381, 20210412 (2023).

5. M. Okuyama and M. Ohzeki, "Exact solution of free entropy for matrix-valued geometric Brownian motion with non-commutative matrices via the replica method", arXiv:2006.00201, J. Phys. Soc. Jpn. 92, 114001 (2023).

6. M. Okuyama and M. Ohzeki, "Upper bound on the second derivative of the quenched pressure in spin-glass models: weak Griffiths second inequality", arXiv:2005.06757.

7. M. Okuyama and M. Ohzeki, "Some inequalities for correlation functions of Ising models with quenched randomness", arXiv:2004.05832.

8. M. Okuyama and M. Ohzeki, "Inequality for local energy of Ising models with quenched randomness and its application", arXiv:2001.10707, J. Phys. Soc. Jpn. 89, 064704 (2020).

9. 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.

10. M. Okuyama and M. Ohzeki, "A useful fundamental speed limit for the imaginary-time Schrodinger equation", arXiv:1806.09040.

11. 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.

12. M. Okuyama and M. Ohzeki, "Quantum speed limit is not quantum", Phys. Rev. Lett. 120, 070402 (2018), arXiv:1710.03498.

13.  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.

14.  M. Okuyama and K. Takahashi, "From classical nonlinear integrable systems to quantum shortcuts to adiabaticity",  Phys. Rev. Lett. 117, 070401 (2016), arXiv:1603.01053.

15.  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.

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