Banca de QUALIFICAÇÃO: JAMILA UCHENNA OBINI

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : JAMILA UCHENNA OBINI
Date: 09/11/2026
TIME: 14:00
LOCAL: Sala 306 do Bloco B do Campus de Santo André da Universidade Federal do ABC
TITLE:

Quantum Random Access Codes: Locas Vs. Global strategies, limits in D=d²

PAGES: 50
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUBÁREA: Física Geral
SUMMARY:

This thesis investigates local encoding strategies in a 2 → 1 Quantum Random Access Code (QRAC), focusing on their performance and limitations compared with global quantum strategies. The theoretical framework is based on numerical optimization using Semidefinite Programming (SDP), as developed in the underlying work. For D = 4, numerical optimization reveals that the optimal local encoding strategy is characterized by mutually unbiased bases composed entirely of separable states, whereas for dimensions D = d² with d ≥ 6, local strategies fall below the classical success-probability benchmark. Building on this theoretical framework, the thesis investigates the experimental implementation of local QRAC strategies using photonic polarization qubits. The experimental results are compared with theoretical predictions to evaluate the performance of local encoding strategies.

COMMITTEE MEMBERS:
Presidente - Interno ao Programa - 1762413 - LUCIANO SOARES DA CRUZ
Membro Titular - Examinador(a) Interno ao Programa - 3420345 - CARLOS AUGUSTO MERA ACOSTA
Membro Titular - Examinador(a) Externo ao Programa - 1600858 - HERCULANO DA SILVA MARTINHO
Membro Suplente - Examinador(a) Interno ao Programa - ***.029.228-** - HANS MARIN FLOREZ - USP