2 papers
quant-ph2026
Robust phase sensitivity in Mach-Zehnder interferometer using photon added and subtracted squeezed coherent state
Shivani Singh, Priya Malpani, Anirban Pathak
For the precision-based measurements, Mach-Zehnder interferometry is a widely used technique. There are various ways to enhance the precision of Mach-Zehnder interferometer (MZI),…
quant-ph2025
Quantum metrology in a nonlinear-interferometer with feedback
Shivani Singh, Craig S. Hamilton, Igor Jex
In this paper, we propose a nonlinear interferometer with feedback loops and explore its efficiency for phase estimation. We analyse two feedback schemes, one where both modes of t…