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Title: Hyperspherical δ-δ’ potentials
Authors: Muñoz Castañeda, J.M.
Nieto Calzada, Luis Miguel
Romaniega, C.
Issue Date: 2019
Description: Producción Científica
Citation: Ann. Phys. 400 (2019) 246–261
Abstract: The spherically symmetric potential a δ(r − r0) + b δ′(r − r0) is generalised for the d-dimensional space as a characterisation of a unique selfadjoint extension of the free Hamiltonian. For this extension of the Dirac delta, the spectrum of negative, zero and positive energy states is studied in d ≥ 2, providing numerical results for the expectation value of the radius as a function of the free parameters of the potential. Remarkably, only if d = 2 the δ-δ′ potential for arbitrary a > 0 admits a bound state with zero angular momentum.
Peer Review: SI
Language: eng
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:FM - Artículos de revista

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