Quantum Transparency of Barriers for Structure Particles

TL;DR

This paper investigates how two coupled particles can penetrate barriers more effectively than individual particles, revealing a mechanism for anomalous transparency and increased tunneling probabilities in quantum systems.

Contribution

It introduces a simple mechanism explaining barrier resonances for coupled particles, showing they can be more transparent than structureless objects and have higher tunneling probabilities.

Findings

Barrier resonances cause anomalous transparency for coupled particles.

Tunneling probabilities for two interacting particles can be significantly higher.

Mechanism differs from traditional models of particle penetration.

Abstract

Penetration of two coupled particles through a repulsive barrier is considered. A simple mechanism of the appearance of barrier resonances is demonstrated that makes the barrier anomalously transparent as compared to the probability of penetration of structureless objects. It is indicated that the probabilities of tunnelling of two interacting particles from a false vacuum can be considerably larger than it was assumed earlier.