Hideo Mabuchi
Published 1998-01-20, updated 1998-01-28Version 3
I utilize the Caves-Milburn model for continuous position measurements to formulate a broadband version of the Standard Quantum Limit (SQL) for monitoring the position of a free mass, and illustrate the use of Kalman filtering to recover the SQL for estimating a weak classical force that acts on a quantum-mechanical test particle under continuous observation. These derivations are intended to clarify the interpretation of SQL's in the context of continuous quantum measurement.
Comments: Replaced version: changed title, fixed algebra error at the very end, conclusions modified accordingly. Four pages, one eps figure
Realization of Measurement and the Standard Quantum Limit
Surpassing the standard quantum limit for optical imaging using non-classical multimode light
Surpassing the Standard Quantum Limit in an Atom Interferometer with Four-mode Entanglement Produced from Four-Wave Mixing
