3 papers
quant-ph2019
Quantum-Limited Estimation of Phase Gradient
Walker Larson, Bahaa E. A. Saleh
We show that the quantum Cramér-Rao bound on the precision of measurements of the optical phase gradient, or the wavefront tilt, with a beam of finite width is consistent with the…
physics.optics2016
Basis-neutral Hilbert-space analyzers
Lane Martin, Davood Mardani, H. Esat Kondakci +7
Interferometry is one of the central organizing principles of optics. Key to interferometry is the concept of optical delay, which facilitates spectral analysis in terms of time-ha…
quant-ph2016
Super-Sensitive Ancilla-Based Adaptive Quantum Phase Estimation
Walker Larson, Bahaa Saleh
The super-sensitivity attained in quantum phase estimation is known to be compromised in the presence of decoherence. This is particularly patent at blind spots -- phase values at…