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Quantum sensing through bosonic-fermionic Bell-state transitions in two-photon interference
Chahat Kaushik, Vimlesh Kumar, G. K. Samanta
Hong-Ou-Mandel (HOM) interference has become a central resource for quantum sensing and metrology owing to its sensitivity to temporal delay and photon indistinguishability. Howeve…
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 o…
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…
Fast measurement of group index variation with ultimate precision using Hong-Ou-Mandel interferometry
Sandeep Singh, Vimlesh Kumar, G. K. Samanta
Hong-Ou-Mandel (HOM) interferometry has emerged as a valuable tool for quantum sensing applications, particularly in measuring physical parameters that influence the relative optic…