AllPaper of Masayuki Ohzeki Kyoto University

Current Study

Information Theory	TBA Masayuki Ohzeki, and Toshiyuki Tanaka to appear soon
Learning Theory	TBA Masayuki Ohzeki, and Toshiyuki Tanaka work in progress
Spin Glass	TBA Masayuki Ohzeki, Ulisse Ferrari, Tommaso Rizzo and Giorgio Parisi work in progress
Spin Glass	Analysis on finite-dimensional spin glass transition Masayuki Ohzeki work in progress
Quantum Information	(Tentative) Optimal decoding for several concatenated codes and their thresholds Masayuki Ohzeki, and Keisuke Fujii to appear soon
Quantum Information	(Tentative) Unified approach to estimate error thresholds for surface code with interactions Masayuki Ohzeki, and Keisuke Fujii work in progress
Spin Glass	(Tentative) Jarzynski equality for spin glasses and its application Koji, Hukushima, Masayuki Ohzeki, and Hidetoshi Nishimori work in progress
Spin Glass	(Tentative) On validity of duality analysis on spin glasses Masayuki Ohzeki, Ryozi Miyazaki, and Koujin Takeda work in progress
Spin Glass	Real-space renormalization group analysis of the transverse field Blume-Emery-Griffiths model Atsuki Osanai, Masayuki Ohzeki, and Hidetoshi Nishimori to appear soon

2013

Quantum Information	Measurement-Based Quantum Computation on Symmetry Breaking Thermal States Keisuke Fujii, Yosifumi Nakata, Masayuki Ohzeki, and Mio Murao submitted to PRL arXiv:1209.1265
Statistical Mechanics	Nonequilibrium work relation in macroscopic system Yuki Sughiyama and Masayuki Ohzeki submitted to J. Stat. Mech. e-arXiv:cond-mat/1110.2088
Classical Spin	Duality analysis and its application: bond percolation Masayuki Ohzeki Phys. Rev. E 87, 012137 (2013) arXiv:1211.1521

Quantum Information

Measurement-Based Quantum Computation on Symmetry Breaking Thermal States

Keisuke Fujii, Yosifumi Nakata, Masayuki Ohzeki, and Mio Murao

submitted to PRL

LinkIcon arXiv:1209.1265

Statistical Mechanics

Nonequilibrium work relation in macroscopic system

Yuki Sughiyama and Masayuki Ohzeki

submitted to J. Stat. Mech.

LinkIcon e-arXiv:cond-mat/1110.2088

Classical Spin

Duality analysis and its application: bond percolation

Masayuki Ohzeki

LinkIcon Phys. Rev. E 87, 012137 (2013)

LinkIcon arXiv:1211.1521

2012

Spin Glass	Fluctuation Theorems on Nishimori Line Masayuki Ohzeki Phys. Rev. E 86, 061110 (2012) arXiv:1209.1871
Quantum Information	Duality analysis on random planar lattice Masayuki Ohzeki, and Keisuke Fujii Phys. Rev. E 86, 051121 (2012) arXiv:1209.3500
Quantum Information	Error threshold estimations in surface code with loss of qubits Masayuki Ohzeki Phys. Rev. A 85, 060301(R) (2012). arXiv:1202.2593
Quantum Information	Strong Resilience of Topological Codes to Depolarization Hector Bombin, Ruben S. Andrist, Masayuki Ohzeki, Helmut G. Katzgraber and Miguel Angel Martin-Delgado Phys. Rev. X, 2 (2012) 021004 arXiv:1202.1852 featured in Viewpoint (Physics 5, 50 (2012))

2011

Spin Glass	Nonequilibrium work on spin glasses in transverse and random fields Masayuki Ohzeki, Hitoshi Katsuda, and Hidetoshi Nishimori J. Phys. Soc. Jpn. 80 (2011) 084002 e-arXiv:cond-mat/1104.0484
Optimization Problem	Jarzynski equality for an energy-controlled system Hitoshi Katsuda, and Masayuki Ohzeki J. Phys. Soc. Jpn. 80 (2011) 045003 e-arXiv:cond-mat/1101.3826
Spin Glass	Universality in phase boundary slopes for spin glasses on self dual lattices Masayuki Ohzeki, Creighton K. Thomas, Helmut G Katzgraber, Hector Bombin, and Miguel Angel Martin-Delgado J. Stat. Mech. (2011) P02004 e-arXiv:cond-mat/1009.6015
Quantum Information	Quantum annealing: An introduction and new developments Masayuki Ohzeki, and Hidetoshi Nishimori J Comp. and Theor. Nanoscience, 8. (2011) 963 e-arXiv:cond-mat/1006.1696

2010

Quantum Information	Quantum Annealing with Jarzynski Equality Masayuki Ohzeki Phys. Rev. Lett. 105, 050401 (2010) e-arXiv:quant-phys/1007.1277
Spin Glass	Nonequilibrium Relations for Spin Glasses with Gauge Symmetry Masayuki Ohzeki, and Hidetoshi Nishimori News and Comments: K. Hukushima: JPSJ Online—News and Comments [August 19, 2010]. J. Phys. Soc. Jpn. 79 (2010) 084003. e-arXiv:cond-mat/1004.2389 Spin Glass, a disordered magnetic system, exhibits a drastic slowdown of relaxation processes toward equilibirum in low-temperature regions. This dynamical aspect of spin glasses implies the difficulty to visit all the local minima of the free energy by thermal fluctuations. That reminds us of a scene like the typical Hollywood movies that an adventurer explores all the abysmal gorges to find the treasure at the bottom of the canyon. The present study has unveiled a hidden way to reach the equilibrium state by use of a special symmetry in spin glasses with the Jarzynski equality. We hope the grace of the nonequilibrium physics might help the adventurer.

Quantum Information

Quantum Annealing with Jarzynski Equality

Masayuki Ohzeki

LinkIcon Phys. Rev. Lett. 105, 050401 (2010)

LinkIcon e-arXiv:quant-phys/1007.1277

Spin Glass

Nonequilibrium Relations for Spin Glasses with Gauge Symmetry

Masayuki Ohzeki, and Hidetoshi Nishimori

LinkIcon News and Comments: K. Hukushima: JPSJ Online—News and Comments [August 19, 2010].

LinkIcon J. Phys. Soc. Jpn. 79 (2010) 084003.

LinkIcon e-arXiv:cond-mat/1004.2389

Spin Glass, a disordered magnetic system, exhibits a drastic slowdown of relaxation processes toward equilibirum in low-temperature regions.

This dynamical aspect of spin glasses implies the difficulty to visit all the local minima of the free energy by thermal fluctuations.

That reminds us of a scene like the typical Hollywood movies that an adventurer explores all the abysmal gorges to find the treasure at the bottom of the canyon.

The present study has unveiled a hidden way to reach the equilibrium state by use of a special symmetry in spin glasses with the Jarzynski equality.

We hope the grace of the nonequilibrium physics might help the adventurer.

2009

Quantum Information	Accuracy threshold of topological color codes on the hexagonal and square-octagonal lattices Masayuki Ohzeki Phys. Rev. E 80 (2009) 011141 e-arXiv: cond-mat/0903.2102 Virtual Journal of Nanoscale Science & Technology, Vol. 20 (2009). Virtual Journal of Quantum Information, Vol. 9 (2009).
Spin Glass	Analytical evidence for the absence of spin glass transition on self-dual lattices Masayuki Ohzeki, and Hidetoshi Nishimori J. Phys. A: Math. Theor. 42 (2009) 332001 e-arXiv: cond-mat/0905.3623
Spin Glass	Locations of multicritical points for spin glasses on regular lattices Masayuki Ohzeki, Phys. Rev. E 79, (2009) 021129 e-arXiv: cond-mat/0811.0464

Quantum Information

Accuracy threshold of topological color codes on the hexagonal and square-octagonal lattices

Masayuki Ohzeki

LinkIcon Phys. Rev. E 80 (2009) 011141

LinkIcon e-arXiv: cond-mat/0903.2102

Virtual Journal of Nanoscale Science & Technology, Vol. 20 (2009).

Virtual Journal of Quantum Information, Vol. 9 (2009).

Spin Glass

Analytical evidence for the absence of spin glass transition on self-dual lattices

Masayuki Ohzeki, and Hidetoshi Nishimori

LinkIcon J. Phys. A: Math. Theor. 42 (2009) 332001

LinkIcon e-arXiv: cond-mat/0905.3623

Spin Glass

Locations of multicritical points for spin glasses on regular lattices

Masayuki Ohzeki,

LinkIcon Phys. Rev. E 79, (2009) 021129

LinkIcon e-arXiv: cond-mat/0811.0464

2008

Spin Glass	Multicritical points for the spin glass models on hierarchical lattices Masayuki Ohzeki, Hidetoshi Nishimori and A. Nihat Berker, Phys. Rev. E 77, (2008) 061116, e-arXiv: cond-mat/0802.2760

Spin Glass

Multicritical points for the spin glass models on hierarchical lattices

Masayuki Ohzeki, Hidetoshi Nishimori and A. Nihat Berker,

LinkIcon Phys. Rev. E 77, (2008) 061116,

LinkIcon e-arXiv: cond-mat/0802.2760

2007

Spin Glass	Multicritical Points of Potts Spin Glasses on the Triangular Lattice Masayuki Ohzeki, J. Phys. Soc. Jpn. 76, (2007) 114003(OPEN ACCESS), e-arXiv: cond-mat/0706.2052

Spin Glass

Multicritical Points of Potts Spin Glasses on the Triangular Lattice

Masayuki Ohzeki,

LinkIcon J. Phys. Soc. Jpn. 76, (2007) 114003(OPEN ACCESS),

LinkIcon e-arXiv: cond-mat/0706.2052

2006

Classical Spin	Internal energy of the Potts model on the triangular lattic with two- and three-body interactions Masayuki Ohzeki and Hidetoshi Nishimori, J. Phys. Soc. Jpn. 75, (2006) 114003(OPEN ACCESS), e-arXiv: cond-mat/0605688
Spin Glass	Location of the multicritical point of the Ising spin glass on the triangular and hexagonal lattices Hidetoshi Nishimori and Masayuki Ohzeki, J. Phys. Soc. Jpn. 75, (2006) 034004(OPEN ACCESS), e-arXiv: cond-mat/0601356

Classical Spin

Internal energy of the Potts model on the triangular lattic with two- and three-body interactions

Masayuki Ohzeki and Hidetoshi Nishimori,

LinkIcon J. Phys. Soc. Jpn. 75, (2006) 114003(OPEN ACCESS),

LinkIcon e-arXiv: cond-mat/0605688

Spin Glass

Location of the multicritical point of the Ising spin glass on the triangular and hexagonal lattices

Hidetoshi Nishimori and Masayuki Ohzeki,

LinkIcon J. Phys. Soc. Jpn. 75, (2006) 034004(OPEN ACCESS),

LinkIcon e-arXiv: cond-mat/0601356

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