3 papers
quant-ph2025
Free-space multi-user quantum network with high key rate
Ayan Kumar Nai, G. K. Samanta
Emergent quantum networks are the essential ingredient for securely connecting multiple users worldwide, extensively deployed in both fibre and free-space. An essential element is…
quant-ph2025
Classical-to-quantum transfer of geometric phase for non-interferometric phase measurement and manipulation of quantum state
Vimlesh Kumar, Chahat Kaushik, M. Ebrahim-Zadeh +2
The geometric phase, originating from the cyclic evolution of a state, such as polarization on the Poincaré sphere, is typically measured through interferometric approaches that of…
quant-ph2024
Device-independent, megabit-rate quantum random number generator with beam-splitter-free architecture and live Bell test certification
Ayan Kumar Nai, Vimlesh Kumar, M. Ebrahim-Zadeh +1
Device-independent quantum random number generators (DI-QRNGs) are crucial for information processing, ensuring certified quantumness and genuine randomness. However, existing impl…