arxiv: chao-dyn/9612008 · v1 · pith:DP3W4QN6new · submitted 1996-12-04 · chao-dyn · cond-mat· nlin.CD· quant-ph

Resonance Tunneling in Double-Well Billiards with a Pointlike Scatterer

Taksu Cheon , T. Shigehara This is my paper

classification chao-dyn cond-matnlin.CDquant-ph

keywords tunnelingbilliardbilliardspointlikepotentialresonancescattereravoided

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The coherent tunneling phenomenon is investigated in rectangular billiards divided into two domains by a classically unclimbable potential barrier. We show that by placing a pointlike scatterer inside the billiard, we can control the occurrence and the rate of the resonance tunneling. The key role of the avoided crossing is stressed. Keywords: chaotic tunneling, quantum billiard, delta potential, diabolical degeneracy PACS: 3.65.-w, 4.30.Nk, 5.45.+b, 73.40.Gk

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Resonance Tunneling in Double-Well Billiards with a Pointlike Scatterer

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