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Quantum anholonomy with topology change

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arxiv 1302.3803 v1 pith:CTZECVYZ submitted 2013-02-15 math-ph math.MPquant-ph

Quantum anholonomy with topology change

classification math-ph math.MPquant-ph
keywords quantumanholonomyclosedfamilygraphsringsseparatesingular
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study a family of closed quantum graphs described by one singular vertex of order n=4. By suitable choice of the parameters specifying the singular vertex, we can construct a closed sequence of paths in the parameter space that physically corresponds to the smooth interpolation of different topologies - a ring, separate two lines, separate two rings, two rings with a contact point. We find that the spectrum of a quantum particle on this family of graphs shows the quantum anholonomy.

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