86 citations · 783 across the 36 of their papers we have counts for
21 papers · 1 filter
Time-dependent multiparameter estimation for quantum experiments via online-offline sequential Monte-Carlo method
Chattamas Manoworakul, Jason F. Ralph, Nattaphong Wonglakhon +1
While typical online estimation methods can estimate the multiparameter dynamics of many systems, they may not be sufficient for a system with highly noisy measurement and rapid de…
Real-Time Kalman Filter: Cooling of an Optically Levitated Nanoparticle
Ashley Setter, Marko Toroš, Jason F. Ralph +1
We demonstrate that a Kalman filter applied to estimate the position of an optically levitated nanoparticle, and operated in real-time within a Field Programmable Gate Array (FPGA)…
Dynamical model selection near the quantum-classical boundary
Jason F. Ralph, Marko Toroš, Simon Maskell +4
We discuss a general method of model selection from experimentally recorded time-trace data. This method can be used to distinguish between quantum and classical dynamical models.…
Multi-parameter estimation along quantum trajectories with Sequential Monte Carlo methods
Jason F Ralph, Simon Maskell, Kurt Jacobs
This paper proposes an efficient method for the simultaneous estimation of the state of a quantum system and the classical parameters that govern its evolution. This hybrid approac…
Observing quantum chaos with noisy measurements and highly mixed states
Jason F. Ralph, Kurt Jacobs, Mark J. Everitt
A fundamental requirement for the emergence of classical behavior from an underlying quantum description is that certain observed quantum systems make a transition to chaotic dynam…
Coupling rotational and translational motion via a continuous measurement in an optomechanical sphere
Jason F. Ralph, Kurt Jacobs, Jonathon Coleman
We consider a measurement of the position of a spot painted on the surface of a trapped nano-optomechanical sphere. The measurement extracts information about the position of the s…