Localization of the Grover Walks on Spidernets and Free Meixner Laws |
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Authors: | Norio Konno Nobuaki Obata Etsuo Segawa |
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Affiliation: | 1. Department of Applied Mathematics, Faculty of Engineering, Yokohama National University, Yokohama, 240-8501, Japan 2. Graduate School of Information Sciences, Tohoku University, Sendai, 980-8579, Japan
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Abstract: | In the first part, we have constructed several families of interacting wedge-local nets of von Neumann algebras. In particular, we discovered a family of models based on the endomorphisms of the U(1)-current algebra ${mathcal{A} ^{(0)}}$ of Longo-Witten. In this second part, we further investigate endomorphisms and interacting models. The key ingredient is the free massless fermionic net, which contains the U(1)-current net as the fixed point subnet with respect to the U(1) gauge action. Through the restriction to the subnet, we construct a new family of Longo-Witten endomorphisms on ${mathcal{A} ^{(0)}}$ and accordingly interacting wedge-local nets in two-dimensional spacetime. The U(1)-current net admits the structure of particle numbers and the S-matrices of the models constructed here do mix the spaces with different particle numbers of the bosonic Fock space. |
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