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Updated: Aug 20, 2025

Detection and Quantification of Tunneling Nanotubes Using 3D Volume View Images
Published on: August 31, 2022
Chaos-assisted many-body tunnelling
Urbashi Satpathi1, Sayak Ray1,2, Amichay Vardi1
1Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
Abstract:
We study the interplay of chaos and tunneling between two weakly coupled Bose-Josephson junctions. The classical phase space of the composite system has a mixed structure including quasi-integrable self-trapping islands for particles and excitations, separated by a chaotic sea. We show that the many-body dynamical tunneling gap between macroscopic Schrödinger cat states supported by these islands is chaos-enhanced. The many-body tunneling rate fluctuates over several orders of magnitude with small variations of the system parameters or the particle number.
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