Showing 2026Show all
3 papers · 1 filter
math-ph2026
Pulsation of quantum walk on finite graph
Taisuke Hosaka, Etsuo Segawa
We study discrete-time quantum walks on weighted graphs, where every edge in an edge cut set is assigned a small weight . The parameter represents the strength of the conn…
quant-ph2026
Robustness of periodicity in Grover walks under a magnetic vector potential
Hiroto Sekido, Etsuo Segawa
We study the effect of magnetic vector potentials on periodic Grover walks on finite graphs. The magnetic vector potential is introduced through the framework of quantum graphs, wh…
math-ph2026
Resonant scattering for tunable quantum walks on graphs with tails
Kenta Higuchi, Ryuta Ishikawa, Hisashi Morioka +2
We study the resonant scattering for discrete time quantum walks on graphs with some tails. In our arguments, we reduce the study of resonances to the perturbation of eigenvalues o…