Formulation of the twisted-light-matter interaction at the phase singularity: Beams with strong magnetic fields

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The formulation of the interaction of matter with singular light fields needs special care. In a recent article [G. F. Quinteiro, Phys. Rev. A 91, 033808 (2015)PLRAAN1050-294710.1103/PhysRevA.91.033808] we have shown that the Hamiltonian describing the interaction of a twisted-light beam having para...

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Autores principales:	Quinteiro, G.F., Reiter, D.E., Kuhn, T.
Formato:	JOUR
Materias:	Angular momentum Electric fields Magnetic fields Magnetic moments Magnetism Azimuthally polarized beams Electric and magnetic fields Light-matter interactions Magnetic effects Moment approximation Phase singularities Strong magnetic fields Twisted light beams Hamiltonians
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_24699926_v95_n1_p_Quinteiro
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_24699926_v95_n1_p_Quinteiro
record_format	dspace
spelling	todo:paper_24699926_v95_n1_p_Quinteiro2023-10-03T16:41:33Z Formulation of the twisted-light-matter interaction at the phase singularity: Beams with strong magnetic fields Quinteiro, G.F. Reiter, D.E. Kuhn, T. Angular momentum Electric fields Magnetic fields Magnetic moments Magnetism Azimuthally polarized beams Electric and magnetic fields Light-matter interactions Magnetic effects Moment approximation Phase singularities Strong magnetic fields Twisted light beams Hamiltonians The formulation of the interaction of matter with singular light fields needs special care. In a recent article [G. F. Quinteiro, Phys. Rev. A 91, 033808 (2015)PLRAAN1050-294710.1103/PhysRevA.91.033808] we have shown that the Hamiltonian describing the interaction of a twisted-light beam having parallel orbital and spin angular momenta with a small object located close to the phase singularity can be expressed only in terms of the electric field of the beam. Here we complement our study by providing an interaction Hamiltonian for beams having antiparallel orbital and spin angular momenta. Such beams may exhibit unusually strong magnetic effects. We further extend our formulation to radially and azimuthally polarized beams. The advantages of our formulation are that for all beams the Hamiltonian is written solely in terms of the electric and magnetic fields of the beam and as such it is manifestly gauge invariant. Furthermore, it is intuitive by resembling the well-known expressions in the dipole-electric and dipole-magnetic moment approximations. © 2017 American Physical Society. Fil:Quinteiro, G.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_24699926_v95_n1_p_Quinteiro
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Angular momentum Electric fields Magnetic fields Magnetic moments Magnetism Azimuthally polarized beams Electric and magnetic fields Light-matter interactions Magnetic effects Moment approximation Phase singularities Strong magnetic fields Twisted light beams Hamiltonians
spellingShingle	Angular momentum Electric fields Magnetic fields Magnetic moments Magnetism Azimuthally polarized beams Electric and magnetic fields Light-matter interactions Magnetic effects Moment approximation Phase singularities Strong magnetic fields Twisted light beams Hamiltonians Quinteiro, G.F. Reiter, D.E. Kuhn, T. Formulation of the twisted-light-matter interaction at the phase singularity: Beams with strong magnetic fields
topic_facet	Angular momentum Electric fields Magnetic fields Magnetic moments Magnetism Azimuthally polarized beams Electric and magnetic fields Light-matter interactions Magnetic effects Moment approximation Phase singularities Strong magnetic fields Twisted light beams Hamiltonians
description	The formulation of the interaction of matter with singular light fields needs special care. In a recent article [G. F. Quinteiro, Phys. Rev. A 91, 033808 (2015)PLRAAN1050-294710.1103/PhysRevA.91.033808] we have shown that the Hamiltonian describing the interaction of a twisted-light beam having parallel orbital and spin angular momenta with a small object located close to the phase singularity can be expressed only in terms of the electric field of the beam. Here we complement our study by providing an interaction Hamiltonian for beams having antiparallel orbital and spin angular momenta. Such beams may exhibit unusually strong magnetic effects. We further extend our formulation to radially and azimuthally polarized beams. The advantages of our formulation are that for all beams the Hamiltonian is written solely in terms of the electric and magnetic fields of the beam and as such it is manifestly gauge invariant. Furthermore, it is intuitive by resembling the well-known expressions in the dipole-electric and dipole-magnetic moment approximations. © 2017 American Physical Society.
format	JOUR
author	Quinteiro, G.F. Reiter, D.E. Kuhn, T.
author_facet	Quinteiro, G.F. Reiter, D.E. Kuhn, T.
author_sort	Quinteiro, G.F.
title	Formulation of the twisted-light-matter interaction at the phase singularity: Beams with strong magnetic fields
title_short	Formulation of the twisted-light-matter interaction at the phase singularity: Beams with strong magnetic fields
title_full	Formulation of the twisted-light-matter interaction at the phase singularity: Beams with strong magnetic fields
title_fullStr	Formulation of the twisted-light-matter interaction at the phase singularity: Beams with strong magnetic fields
title_full_unstemmed	Formulation of the twisted-light-matter interaction at the phase singularity: Beams with strong magnetic fields
title_sort	formulation of the twisted-light-matter interaction at the phase singularity: beams with strong magnetic fields
url	http://hdl.handle.net/20.500.12110/paper_24699926_v95_n1_p_Quinteiro
work_keys_str_mv	AT quinteirogf formulationofthetwistedlightmatterinteractionatthephasesingularitybeamswithstrongmagneticfields AT reiterde formulationofthetwistedlightmatterinteractionatthephasesingularitybeamswithstrongmagneticfields AT kuhnt formulationofthetwistedlightmatterinteractionatthephasesingularitybeamswithstrongmagneticfields
_version_	1807319052910067712

Formulation of the twisted-light-matter interaction at the phase singularity: Beams with strong magnetic fields

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