Hokkaido University / Graduate School / Faculty of Engineering /

Division of Applied Physics / Laboratory of Condensed Matter Physics

ken_mochizuki_at_eng.hokudai.ac.jp (_at_⇒@)

Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan

Faculty of Engineering, A2-66

Non-Hermitian quantum systems, PT symmetry, Topological phases, Quantum walks

- "Observation of topological edge states in parity–time-symmetric quantum walks"

L. Xiao, X. Zhan, Z. H. Bian, K. K. Wang, X. Zhang, X. P. Wang, J. Li,, D. Kim, N. Kawakami, W. Yi, H. Obuse, B. C. Sanders, and P. Xue__K. Mochizuki__

doi:10.1038/nphys4204 - "Effects of Disorder on Non-unitary PT Symmetric Quantum Walks"

and Hideaki Obuse__Ken Mochizuki__

Interdisciplinary Information Sciences**23**, No.1 95-103 (2017) - "Explicit definition of PT symmetry for nonunitary quantum walks with gain and loss"

, Dakyeong Kim, and Hideaki Obuse__Ken Mochizuki__

Physical Review A**93**, 062116 (2016)

__Ken Mochizuki__and Hideaki Obuse (poster,P42)

“PT symmetry and pseudo-unitarity of nonunitary quantum walks”

8th International Conference on Metamaterials, Photonic Crystals and Plasmonics, July 25-28, 2017, Songdo Convensia, Incheon-Seoul, South Korea- Hideaki Obuse,
__Ken Mochizuki__, Dakyeong Kim, and Norio Kawakami (oral)

“Floquet Topological Phases in PT Symmetric Passive Hadamard Quantum Walks”

8th International Conference on Metamaterials, Photonic Crystals and Plasmonics, July 25-28, 2017, Songdo Convensia, Incheon-Seoul, South Korea - Hideaki Obuse,
__Ken Mochizuki__, Dakyeong Kim, and Norio Kawakami (oral)

“Floquet Topological Phases in PT symmetric Quantum Walks with Gain and Loss”

CLEO / Europe-EQEC 2017, June 25-29, 2017, Munich, Germany - Hideaki Obuse,
__Ken Mochizuki__, Dakyeong Kim, and Norio Kawakami (oral)

“Floquet topological phases in PT symmetric non-unitary quantum walks: theory and experiment”

Non-Hermitian Hamiltonians in Physics: Theory and Experiment, May 15-19, 2017, Bad Honnef, Germany - H. Obuse,
__K. Mochizuki__, D. Kim, N. Kawakami, L. Xiao, X. Zhan, Z. H. Bian, K. K. Wang, X. Zhang, X. P. Wang, J. Li, W. Yi, B. Sanders, P. Xue (oral)

“Observation of edge states of Floquet topological phases in PT symmetric quantum walks”

International Conference on Topological Material Science 2017, May 9-13, 2017, Tokyo Institute of Technology __Ken Mochizuki__, Dakyeong Kim, Norio Kawakami, and Hideaki Obuse (poster,15)

“Topological phases in PT symmetric nonunitary quantum walks”

International School on Topological Science and Topological Matters, February 13-18, 2017, Kyoto- Hideaki Obuse,
__Ken Mochizuki__, Dakyeong Kim, and Norio Kawakami (oral)

“Floquet Topological Phases Driven by PT Symmetric Non-unitary Time Evolution”

Topological Material Science 2 nd Annual Meeting, December 12-18, 2016, Tohuku University __Ken Mochizuki__and Hideaki Obuse (poster,Pos-8)

“PT symmetry for nonunitary quantum walks and the extension to disordered systems”

Progress in Quantum Physics with Non-Hermitian Operator, August 8-12, 2016, Kyoto- Hideaki Obuse,
__Ken Mochizuki__, Dakyeong Kim, and Norio Kawakami (oral)

“Floquet topological phases of non-unitary quantum walks with PT symmetry”

Progress in Quantum Physics with Non-Hermitian Operator, August 8-12, 2016, Kyoto __Ken Mochizuki__, Dakyeong Kim, and Hideaki Obuse (poster)

“Topological phases and enhancement of edge states in PT symmetric quantum walks with gain and loss”

Workshop of Quantum Simulation and Quantum Walks 2015, November 16-18, Yokohama