Quantum states and static field ionization of a cylindrical confined hydrogen atom: A diffusion Monte Carlo study

Author:

Micca Longo Gaia1ORCID,Longo Savino12ORCID

Affiliation:

1. Dipartimento di Chimica Università degli Studi di Bari Aldo Moro Bari Italy

2. Istituto per la Scienza e Tecnologia dei Plasmi – Consiglio Nazionale delle Ricerche Bari Italy

Abstract

AbstractIn this article, the diffusion Monte Carlo (DMC) method is applied to the study of the quantum states of a hydrogen atom confined into a cylindrical potential well. We present an independent reproduction of previous studies based on different methods, in particular the energy eigenvalues for ground and selected excited states and the polarizability of the ground state, both for finite and infinite cylinders. The static field ionization of ground and excited states of the confined atom is discussed, including the determination of the potential energy surface and equilibrium position of the proton. This study provides a further demonstration of the versatility of the DMC method for this and analogous problems.

Publisher

Wiley

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