Characterizing d-dimensional quantum channels by means of quantum process tomography

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In this Letter, we propose a simple optical architecture based on phase-only programmable spatial light modulators, in order to characterize general processes on photonic spatial quantum systems in a d > 2 Hilbert space. We demonstrate the full reconstruction of typical noises affecting quantum c...

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Autores principales: Varga, J.J.M., Rebón, L., Pears Stefano, Q., Iemmi, A.C.
Formato: JOUR
Materias:
Atmospheric turbulence
Light modulators
Optical communication
Quantum computers
Quantum entanglement
Quantum optics
Tomography
Free-space transmission
Optical architectures
Phase-only
Quantum channel
Quantum Computing
Quantum process tomography
Quantum system
Spatial light modulators
Communication channels (information theory)
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01469592_v43_n18_p4398_Varga
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01469592_v43_n18_p4398_Varga
record_format dspace
spelling todo:paper_01469592_v43_n18_p4398_Varga2023-10-03T15:00:27Z Characterizing d-dimensional quantum channels by means of quantum process tomography Varga, J.J.M. Rebón, L. Pears Stefano, Q. Iemmi, A.C. Atmospheric turbulence Light modulators Optical communication Quantum computers Quantum entanglement Quantum optics Tomography Free-space transmission Optical architectures Phase-only Quantum channel Quantum Computing Quantum process tomography Quantum system Spatial light modulators Communication channels (information theory) In this Letter, we propose a simple optical architecture based on phase-only programmable spatial light modulators, in order to characterize general processes on photonic spatial quantum systems in a d > 2 Hilbert space. We demonstrate the full reconstruction of typical noises affecting quantum computing, such as amplitude shifts, phase shifts, and depolarizing channels in dimension d 5. We have also reconstructed simulated atmospheric turbulences affecting a free-space transmission of qudits in dimension d 4. In each case, quantum process tomography was performed in order to obtain the matrix χ that fully describes the corresponding quantum channel, E. Fidelities between the states are experimentally obtained after going through the channel, and the expected ones are above 97%. © 2018 Optical Society of America JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01469592_v43_n18_p4398_Varga
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Atmospheric turbulence
Light modulators
Optical communication
Quantum computers
Quantum entanglement
Quantum optics
Tomography
Free-space transmission
Optical architectures
Phase-only
Quantum channel
Quantum Computing
Quantum process tomography
Quantum system
Spatial light modulators
Communication channels (information theory)
spellingShingle Atmospheric turbulence
Light modulators
Optical communication
Quantum computers
Quantum entanglement
Quantum optics
Tomography
Free-space transmission
Optical architectures
Phase-only
Quantum channel
Quantum Computing
Quantum process tomography
Quantum system
Spatial light modulators
Communication channels (information theory)
Varga, J.J.M.
Rebón, L.
Pears Stefano, Q.
Iemmi, A.C.
Characterizing d-dimensional quantum channels by means of quantum process tomography
topic_facet Atmospheric turbulence
Light modulators
Optical communication
Quantum computers
Quantum entanglement
Quantum optics
Tomography
Free-space transmission
Optical architectures
Phase-only
Quantum channel
Quantum Computing
Quantum process tomography
Quantum system
Spatial light modulators
Communication channels (information theory)
description In this Letter, we propose a simple optical architecture based on phase-only programmable spatial light modulators, in order to characterize general processes on photonic spatial quantum systems in a d > 2 Hilbert space. We demonstrate the full reconstruction of typical noises affecting quantum computing, such as amplitude shifts, phase shifts, and depolarizing channels in dimension d 5. We have also reconstructed simulated atmospheric turbulences affecting a free-space transmission of qudits in dimension d 4. In each case, quantum process tomography was performed in order to obtain the matrix χ that fully describes the corresponding quantum channel, E. Fidelities between the states are experimentally obtained after going through the channel, and the expected ones are above 97%. © 2018 Optical Society of America
format JOUR
author Varga, J.J.M.
Rebón, L.
Pears Stefano, Q.
Iemmi, A.C.
author_facet Varga, J.J.M.
Rebón, L.
Pears Stefano, Q.
Iemmi, A.C.
author_sort Varga, J.J.M.
title Characterizing d-dimensional quantum channels by means of quantum process tomography
title_short Characterizing d-dimensional quantum channels by means of quantum process tomography
title_full Characterizing d-dimensional quantum channels by means of quantum process tomography
title_fullStr Characterizing d-dimensional quantum channels by means of quantum process tomography
title_full_unstemmed Characterizing d-dimensional quantum channels by means of quantum process tomography
title_sort characterizing d-dimensional quantum channels by means of quantum process tomography
url http://hdl.handle.net/20.500.12110/paper_01469592_v43_n18_p4398_Varga
work_keys_str_mv AT vargajjm characterizingddimensionalquantumchannelsbymeansofquantumprocesstomography
AT rebonl characterizingddimensionalquantumchannelsbymeansofquantumprocesstomography
AT pearsstefanoq characterizingddimensionalquantumchannelsbymeansofquantumprocesstomography
AT iemmiac characterizingddimensionalquantumchannelsbymeansofquantumprocesstomography
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