Tata Institute of Fundamental Research

A small numerical study about violation of additivity of Holevo capacity for sending classical information through quantum channels

MSc Thesis Seminar
Speaker: Sai Praveen
Organiser: Pranab Sen
Date: Monday, 31 Jul 2023, 11:15 to 12:15
Venue: A-201

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Abstract:  We provide numerical evidence that appropriately defined random quantum channels violate additivity of Holevo capacity for sending classical information by at least 2^{-182} bits. The channel achieving this violation acts on a 366 qubit input and gives a 187 qubit output.