88 citations · 193 across the 16 of their papers we have counts for
Showing 2003 · quant-phShow all
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quant-ph2003
Physics of singular points in quantum mechanics
Izumi Tsutsui, Tamas Fulop
Defects or junctions in materials serve as a source of interactions for particles, and in idealized limits they may be treated as singular points yielding contact interactions. In…
quant-ph2003★ 19 cited
Spectral properties on a circle with a singularity
Tamas Fulop, Izumi Tsutsui, Taksu Cheon
We investigate the spectral and symmetry properties of a quantum particle moving on a circle with a pointlike singularity (or point interaction). We find that, within the U(2) fami…