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RT @arXiv_math_ph: https://t.co/j7yeLicZRI Y Matsuzawa et. al. The Witten index for one-dimensional split-step quantum walks under the no…
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https://t.co/j7yeLicZRI Y Matsuzawa et. al. The Witten index for one-dimensional split-step quantum walks under the non-Fredholm condition https://t.co/HfaUvJffeH
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depends on parameters of two-side limits. Especially, half-integer indices appear. [4/4 of https://t.co/OR06ThrW4w]