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EXPERIMENTAL QUANTUM TOMOGRAPHY ASSISTED BY MULTIPLY SYMMETRIC STATES IN HIGHER DIMENSIONS

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dc.creatorGUSTAVO CAÑAS CARDONA
dc.date2019
dc.date.accessioned2025-01-10T15:12:25Z
dc.date.available2025-01-10T15:12:25Z
dc.date.issued2019
dc.description.abstractHIGH-DIMENSIONAL QUANTUM INFORMATION PROCESSING HAS BECOME A MATURE FIELD OF RESEARCH WITH SEVERAL DIFFERENT APPROACHES BEING ADOPTED FOR THE ENCODING OF D-DIMENSIONAL QUANTUM SYSTEMS. SUCH PROGRESS HAS FUELED THE SEARCH OF RELIABLE QUANTUM TOMOGRAPHIC METHODS AIMING FOR THE CHARACTERIZATION OF THESE SYSTEMS, MOST OF THESE METHODS BEING SPECIFICALLY DESIGNED FOR A GIVEN SCENARIO. HERE, WE REPORT ON A TOMOGRAPHIC METHOD BASED ON MULTIPLY SYMMETRIC STATES AND ON EXPERIMENTAL INVESTIGATIONS TO STUDY ITS PERFORMANCE IN HIGHER DIMENSIONS. UNLIKE OTHER METHODS, IT IS GUARANTEED TO EXIST IN ANY DIMENSION AND PROVIDES A SIGNIFICANT REDUCTION IN THE NUMBER OF MEASUREMENT OUTCOMES WHEN COMPARED TO STANDARD QUANTUM TOMOGRAPHY. FURTHERMORE, IN THE CASE OF ODD DIMENSIONS, THE METHOD REQUIRES THE LEAST POSSIBLE NUMBER OF MEASUREMENT OUTCOMES. IN OUR EXPERIMENT WE ADOPT THE TECHNIQUE WHERE HIGH-DIMENSIONAL QUANTUM STATES ARE ENCODED USING THE LINEAR TRANSVERSE MOMENTUM OF SINGLE PHOTONS AND ARE CONTROLLED BY SPATIAL LIGHT MODULATORS. OUR RESULTS SHOW THAT FIDELITIES OF 0.984±0.009 WITH ENSEMBLE SIZES OF ONLY 1.5×105 PHOTONS IN DIMENSION D=15 CAN BE OBTAINED IN TYPICAL LABORATORY CONDITIONS, THUS SHOWING ITS PRACTICABILITY IN HIGHER DIMENSIONS.
dc.formatapplication/pdf
dc.identifier.doi10.1103/PhysRevA.99.012336
dc.identifier.issn1094-1622
dc.identifier.issn1050-2947
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/10920
dc.languagespa
dc.publisherPHYSICAL REVIEW A
dc.relation.uri10.1103/PhysRevA.99.012336
dc.rightsPUBLICADA
dc.titleEXPERIMENTAL QUANTUM TOMOGRAPHY ASSISTED BY MULTIPLY SYMMETRIC STATES IN HIGHER DIMENSIONS
dc.title.alternativeTOMOGRAFÍA CUÁNTICA EXPERIMENTAL ASISTIDA POR ESTADOS SIMÉTRICOS MULTIPLICADOS EN DIMENSIONES SUPERIORES
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE FISICA
ubb.SedeCONCEPCIÓN
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