Mutually Unbiased Measurements in Quantum Information Theory

Explore the concept of mutually unbiased measurements in quantum theory through this 57-minute colloquium presented by Dr Máté Farkas from ICFO Barcelona. Delve into the complementary nature of mutually unbiased bases (MUBs) and their significance in quantum information processing tasks. Examine examples such as photon polarisation and spin measurements, and understand their applications in quantum state tomography, communication, Bell inequalities, and cryptography. Investigate the characteristics of mutually unbiased measurements (MUMs), comparing their similarities and differences with MUBs. Learn about Bell nonlocality, device-independent quantum key distribution, and optimization techniques for lower and upper bounds. Gain insights into the fundamental principles of quantum measurements and their practical implications in the field of quantum information.