19 citations · 34 across the 6 of their papers we have counts for
6 papers
Quantization of nonlinear non-Hamiltonian systems
Andy Chia, Wai-Keong Mok, Leong-Chuan Kwek +1
Several important dynamical systems are in , defined by the pair of differential equations . A question of fundamental importance is how such…
Optimal quantum metrology for two-photon absorption
Athena Karsa, Ranjith Nair, Andy Chia +2
Two-photon absorption (TPA) is a nonlinear optical process with wide-ranging applications from spectroscopy to super-resolution imaging. Despite this, the precise measurement and c…
Hitting statistics from quantum jumps
A. Chia, T. Paterek, L. C. Kwek
We define the hitting time for a model of continuous-time open quantum walks in terms of quantum jumps. Our starting point is a master equation in Lindblad form, which can be taken…
The pointer basis and the feedback stabilization of quantum systems
L. Li, A. Chia, H. M. Wiseman
The dynamics for an open quantum system can be `unravelled' in infinitely many ways, depending on how the environment is monitored, yielding different sorts of conditioned states,…
Complete Parameterizations of Diffusive Quantum Monitorings
A. Chia, H. M. Wiseman
The master equation for the state of an open quantum system can be unravelled into stochastic trajectories described by a stochastic master equation. Such stochastic differential e…
Entangled-State Cycles of Atomic Collective-Spin States
A. Chia, A. S. Parkins
We study quantum trajectories of collective atomic spin states of effective two-level atoms driven with laser and cavity fields. We show that interesting ``entangled-state cycl…