The emergence of chaos in an open quantum system TP Spiller, JF Ralph Physics Letters A 194 (4), 235-240, 1994 | 99 | 1994 |

Reconsidering rapid qubit purification by feedback HM Wiseman, JF Ralph New Journal of Physics 8 (6), 90, 2006 | 73 | 2006 |

Local versus global strategies in multiparameter estimation PA Knott, TJ Proctor, AJ Hayes, JF Ralph, P Kok, JA Dunningham Physical Review A 94 (6), 062312, 2016 | 69 | 2016 |

Efficient quantum filtering for quantum feedback control P Rouchon, JF Ralph Physical Review A 91 (1), 012118, 2015 | 65 | 2015 |

Superconducting analogs of quantum optical phenomena: Macroscopic quantum superpositions and squeezing in a superconducting quantum-interference device ring MJ Everitt, TD Clark, PB Stiffell, A Vourdas, JF Ralph, RJ Prance, ... Physical Review A 69 (4), 043804, 2004 | 49 | 2004 |

Fully quantum-mechanical model of a SQUID ring coupled to an electromagnetic field MJ Everitt, P Stiffell, TD Clark, A Vourdas, JF Ralph, H Prance, RJ Prance Physical Review B 63 (14), 144530, 2001 | 48 | 2001 |

Molecular-dynamics simulations of dynamic phenomena in complex plasmas C Durniak, D Samsonov, NP Oxtoby, JF Ralph, S Zhdanov IEEE transactions on plasma science 38 (9), 2412-2417, 2010 | 47 | 2010 |

Real-time Kalman filter: Cooling of an optically levitated nanoparticle A Setter, M Toroš, JF Ralph, H Ulbricht Physical Review A 97 (3), 033822, 2018 | 44 | 2018 |

Weak measurement and control of entanglement generation C Hill, J Ralph Physical Review A 77 (1), 014305, 2008 | 43 | 2008 |

Role of entanglement in calibrating optical quantum gyroscopes P Kok, J Dunningham, JF Ralph Physical Review A 95 (1), 012326, 2017 | 41 | 2017 |

Quantum statistics and entanglement of two electromagnetic field modes coupled via a mesoscopic SQUID ring MJ Everitt, TD Clark, P Stiffell, H Prance, RJ Prance, A Vourdas, JF Ralph Physical Review B 64 (18), 184517, 2001 | 40 | 2001 |

Frequency tracking and parameter estimation for robust quantum state estimation JF Ralph, K Jacobs, CD Hill Physical Review A 84 (5), 052119, 2011 | 35 | 2011 |

Generalized regression neural networks with multiple-bandwidth sharing and hybrid optimization JY Goulermas, XJ Zeng, P Liatsis, JF Ralph IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics) 37 …, 2007 | 32 | 2007 |

High-fidelity simulations of ion trajectories in miniature ion traps using the boundary-element method B Brkić, S Taylor, JF Ralph, N France Physical Review A 73 (1), 012326, 2006 | 32 | 2006 |

The response of a superconducting weak-link ring to external adiabatic noise RJ Prance, TP Spiller, H Prance, TD Clark, J Ralph, A Clippingdale, ... Il Nuovo Cimento B (1971-1996) 106, 431-450, 1991 | 32 | 1991 |

Automatic induction of projection pursuit indices E Rodriguez-Martinez, JY Goulermas, T Mu, JF Ralph IEEE transactions on neural networks 21 (8), 1281-1295, 2010 | 30 | 2010 |

Ideal gas behavior of a strongly coupled complex (dusty) plasma NP Oxtoby, EJ Griffith, C Durniak, JF Ralph, D Samsonov Physical Review Letters 111 (1), 015002, 2013 | 29 | 2013 |

Rapid-state purification protocols for a Cooper pair box EJ Griffith, CD Hill, JF Ralph, HM Wiseman, K Jacobs Physical Review B 75 (1), 014511, 2007 | 29 | 2007 |

Chaotic dynamics in the rf superconducting quantum-interference-device magnetometer: a coupled quantum-classical system J Diggins, JF Ralph, TP Spiller, TD Clark, H Prance, RJ Prance Physical Review E 49 (3), 1854, 1994 | 28 | 1994 |

Persistent entanglement in the classical limit MJ Everitt, TD Clark, PB Stiffell, JF Ralph, AR Bulsara, CJ Harland New Journal of Physics 7 (1), 64, 2005 | 24 | 2005 |