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dc.contributor.author
Pears Stefano, Quimey Martín
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Rebón, Lorena
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Iemmi, Claudio César
dc.date.available
2022-01-19T12:27:37Z
dc.date.issued
2020-11
dc.identifier.citation
Pears Stefano, Quimey Martín; Rebón, Lorena; Iemmi, Claudio César; Determination of spatial quantum states by using point diffraction interferometry; IOP Publishing; Journal of Optics; 22; 11; 11-2020; 1-8
dc.identifier.issn
2040-8978
dc.identifier.uri
http://hdl.handle.net/11336/150299
dc.description.abstract
We present a method to reconstruct pure spatial qudits of arbitrary dimension d, which is based on a point diffraction interferometer. In the proposed scheme, the quantum states are codified in the discretized transverse position of a photon field, once they are sent through an aperture consisting in d rectangular regions, with an extra region that provides a phase reference. To characterize these photonic quantum states, the complete phase wavefront is reconstructed through a phase-shifting technique. Combined with a multipixel detector, the acquisition can be parallelized, and only four interferograms are required to reconstruct any pure qudit, independently of the dimension d. We tested the method experimentally, for reconstructing states of dimension d = 6 randomly chosen. A mean fidelity values of 0.95 is obtained. Additionally, we develop an experimental scheme that allows to estimate phase aberrations affecting the wavefront upon propagation, and thus improve the quantum state estimation. In that regard, we present a proof-of-principle demonstration that shows the possibility to correct the influence of turbulence in a free-space communication, recovering mean fidelity values comparable to the propagation free of turbulence.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CORRELATORS
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MODULATORS
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OPTICAL PROCESSORS
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PHASE SHIFTING INTERFEROMETRY
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QUANTUM STATE TOMOGRAPHY
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Óptica
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Determination of spatial quantum states by using point diffraction interferometry
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-07T14:46:11Z
dc.identifier.eissn
2040-8986
dc.journal.volume
22
dc.journal.number
11
dc.journal.pagination
1-8
dc.journal.pais
Reino Unido
dc.description.fil
Fil: Pears Stefano, Quimey Martín. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Rebón, Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
dc.description.fil
Fil: Iemmi, Claudio César. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
dc.journal.title
Journal of Optics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/2040-8986/abbb5c
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/2040-8986/abbb5c
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