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NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2015, 6 (2), P. 173–181

Time-dependent quantum graph

D. U. Matrasulov – Turin Polytechnic University in Tashkent; National University of Uzbekistan, Uzbekistan; dmatrasulov@gmail.com
J. R. Yusupov – Turin Polytechnic University in Tashkent, Uzbekistan
K. K. Sabirov – National University of Uzbekistan, Uzbekistan
Z. A. Sobirov – National University of Uzbekistan; Tashkent Financial Institute, Uzbekistan

In this paper, we study quantum star graphs with time-dependent bond lengths. Quantum dynamics are treated by solving Schrodinger equation with time-dependent boundary conditions given on graphs. The time-dependence of the average kinetic energy is analyzed. The space-time evolution of a Gaussian wave packet is treated for an harmonically breathing star graph.

Keywords: quantum graph,time-dependent boundary conditions,wave packet dynamics.

PACS 03.65.Aa, 03.65.Ge

DOI 10.17586/2220-8054-2015-6-2-173-181

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