Quantum Breaking of Elastic String

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Breaking of an atomic chain under stress is a collective many-particle tunneling phenomenon. We study classical dynamics in imaginary time by using conformal mapping technique, and derive an analytic formula for the probability of breaking. The result covers a broad temperature interval and interpolates between two regimes: tunneling and thermal activation. Also, we consider the breaking induced by an ultrasonic wave propagating in the chain, and propose to observe it in an STM experiment.
8 pages, RevTeX 3.0, Landau Institute preprint 261/6438

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Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/158567

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9406117
 http://arxiv.org/abs/cond-mat/9406117
 Phys. Rev. Lett. 77, 370 (1995)
 doi:10.1103/PhysRevLett.75.370

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arXiv