Abstract
A new scheme is devised for studying the topological Berry phase in terms of local observables using bundles over partially ordered sets.
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Notes
In works where the theory of bundles is not used, the Dirac field is usually defined as spinor operator-valued generalized function \(\psi (f) = \left\{ {{{\psi }^{{{\nu }}}}({{f}_{{{\nu }}}})} \right\}_{{{{\nu }} = 1}}^{4}\) over the space of rapidly diminishing (Schwarz) functions.
We approximate M4 with partially ordered set K.
Physically, connections describe interactions between fields of matter (fermions) representing cross sections; in this sense, A is the vector potential.
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ACKNOWLEDGMENTS
A.S. Sitdikov thanks Profs. R.G. Nazmitdinov and I.N. Boboshin for their inspiring discussions of issues considered in this work at the LXIX International Conference “Nucleus 2019.”
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Translated by N. Semenova
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Sitdikov, A.S., Nikolaeva, N.V. The Berry Phase and Topological Sectors. Bull. Russ. Acad. Sci. Phys. 85, 1451–1456 (2021). https://doi.org/10.3103/S1062873821120340
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DOI: https://doi.org/10.3103/S1062873821120340