3 papers
quant-ph2026
Robust self-testing based on Gisin's arbitrary-input Bell inequality
Rajdeep Paul, Alok Kumar Pan
Self-testing refers to the strongest device-independent (DI) certification method that validates the nature of a quantum system and devices solely based on the observed statistics.…
quant-ph2026
Genuine Multipartite Nonlocality for Arbitrary Input: Maximal Randomness Generation and Robust Self-Testing
Rajdeep Paul, Ranendu Adhikary, Alok Kumar Pan
Bell nonlocality provides the foundation for device-independent (DI) certification of quantum devices. We introduce a Bell inequality capable of identifying genuine multipartite no…
quant-ph2025
Temperature-induced measurement sensitivity enhancement via imaginary weak values
Lorena Ballesteros Ferraz, Alexandre Matzkin, Alok Kumar Pan
We investigate the potential of weak measurement and post-selection to enhance measurement sensitivity when the initial probe state is mixed. In our framework, the mixedness of the…