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Non-Hermitian Fabry-Perot Resonances in a PT-symmetric system
Ken Shobe, Keiichi Kuramoto, Ken-Ichiro Imura +1
In non-Hermitian scattering problems the behavior of the transmission probability is very different from its Hermitian counterpart; it can exceed unity or even be divergent, since…
Statistical properties of eigenvalues of the non-Hermitian Su-Schrieffer-Heeger model with random hopping terms
Ken Mochizuki, Naomichi Hatano, Joshua Feinberg +1
We explore the eigenvalue statistics of a non-Hermitian version of the Su-Schrieffer-Heeger model, with imaginary on-site potentials and randomly distributed hopping terms. We find…
Null-eigenvalue localization of quantum walks on real-world complex networks
Ruben Bueno, Naomichi Hatano
First we report that the adjacency matrices of real-world complex networks systematically have null eigenspaces with much higher dimensions than that of random networks. These null…
Real Edge Modes in a Floquet-modulated -symmetric SSH model
Andrew K. Harter, Naomichi Hatano
Non-Hermitian Hamiltonians provide a simple picture for analyzing systems with natural or induced gain and loss; however, in general, such Hamiltonians feature complex energies and…
Non-Markovian effect on quantum Otto engine: -Role of system--reservoir interaction-
Yuji Shirai, Kazunari Hashimoto, Ryuta Tezuka +2
We study a limit cycle of a quantum Otto engine whose each cycle consists of two finite-time quantum isochoric (heating or cooling) processes and two quantum adiabatic work-extract…
Discrete-time quantum walk on complex networks for community detection
Kanae Mukai, Naomichi Hatano
We define the discrete-time quantum walk on complex networks and utilize it for community detection. We numerically show that the quantum walk with the Fourier coin is localized in…