3 papers
quant-ph2026
All star-incompatible measurements can certify steering-based randomness
Shintaro Minagawa, Ravi Kunjwal
Certifying that quantum randomness generated by untrusted devices is unpredictable to an attacker (say, Eve) is crucial for device-independent security. Bipartite protocols where o…
quant-ph2025
Quantumness via Discrete Structures
Ravi Kunjwal
Quantum theory departs from classical probabilistic theories in foundational ways. These departures--termed quantumness here--power quantum information and computation. This thesis…
quant-ph2025
No-go theorem for quantum realization of extremal correlations
Sujan V. K, Ravi Kunjwal
The study of quantum correlations is central to quantum information and foundations. The paradigmatic case of Bell scenarios considers product measurements implemented on a multipa…