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quant-ph2026
Magic Secret Sharing: Threshold Control of Quantum Computational Power via GHZ Entanglement
Soumyojyoti Dutta, Tushar
We introduce Magic Secret Sharing (MSS), a quantum cryptographic primitive in which the secret is the computational capability of a quantum state rather than its classical descript…
quant-ph2026
A Phase-Space Geometric Measure of Magic in Qubit Systems
Soumyojyoti Dutta, Tushar
Characterizing quantum magic -- the resource enabling computational advantage beyond stabilizer circuits -- is subtle in qubit systems because established measures can give conflic…
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…