3 papers
quant-ph2024
Exact Quantum Fisher Matrix Results for Distributed Phases Using Multiphoton Polarization Greenberger Horne Zeilinger States
Jiaxuan Wang, Girish Agarwal
In recent times, distributed sensing has been extensively studied using squeezed states. While this is an excellent development, it is desirable to investigate the use of other qua…
quant-ph2024
Quantum Metrology of Absorption and Gain Parameters using Two-Mode Bright Squeezed Light
Mrunal Kamble, Jiaxuan Wang, Girish S. Agarwal
Absorption and gain processes are fundamental to any light-matter interaction and a precise measurement of these parameters is important for various scientific and technological ap…
quant-ph2023
Quantum advantage of time-reversed ancilla-based metrology of absorption parameters
Jiaxuan Wang, Ruynet. L. de Matos Filho, Girish S. Agarwal +1
Quantum estimation of parameters defining open-system dynamics may be enhanced by using ancillas that are entangled with the probe but are not submitted to the dynamics. Here we co…