3 papers
quant-ph2026
Conclusive Identification Via Noisy Classical Channel: Superactivation and Quantum Advantage
Anushko Chattopadhyay, Ambuj, Rakesh Das +4
We introduce conclusive identification task for classical channels: a receiver identifies transmitted inputs without error when possible, and responds inconclusively when outputs a…
quant-ph2026
Superadditivity of Zero-Error Capacity in Noisy Classical and Perfect Quantum Channel Pairs
Ambuj, Anushko Chattopadhyay, Kunika Agarwal +2
We demonstrate superadditivity of one-shot zero-error classical capacity in an asymmetric communication setting where a noisy classical channel is used in parallel with a perfect q…
quant-ph2025
Zero-Error Nash Equilibrium: Harnessing Nonlocal Correlation in Incomplete Information Games
Ambuj, Tushar, Siddharth R. Pandey +4
Claude Shannon's zero-error communication paradigm reshaped our understanding of fault-tolerant information transfer. Here, we adapt this notion into game theory with incomplete in…