| Issue |
EPJ Web Conf.
Volume 377, 2026
15th International Physics Seminar (IPS 2026)
|
|
|---|---|---|
| Article Number | 04002 | |
| Number of page(s) | 5 | |
| Section | Theory, Nuclear, and Particle Physics | |
| DOI | https://doi.org/10.1051/epjconf/202637704002 | |
| Published online | 02 July 2026 | |
https://doi.org/10.1051/epjconf/202637704002
Bosonic quantum transport with power-law coupling: Exit-site dependence
1 Department of Physics, Faculty of Mathematics and Natural Science, Jakarta State University, East Jakarta 13220, Indonesia
2 Research Center for Quantum Physics, National Research and Innovation Agency (BRIN), South Tangerang 15314, Indonesia
3 Asia Pacific Center for Theoretical Physics, Pohang Science and Technology University, Pohang 37673, South Korea
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 2 July 2026
Abstract
We investigate how the placement of the cold-bath coupling site governs the steady-state particle current in a boundary-driven bosonic chain with power-law hopping. The current is shown to exhibit site-resolved nonmonotonicity as a function of the hopping exponent a, with a peak appearing only when the exit site coincides with a node of a dominant eigenstate of the system Hamiltonian. The result suggests a simple node-to-current correspondence that can be used as a guide for engineering current routing in long-range quantum networks. The present proceeding reports the numerical observation and its physical interpretation, and outlines future work needed to establish the scaling and analytic mechanism in larger systems.
© The Authors, published by EDP Sciences, 2026
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