Dr. Chaudhry obtained his PhD in Physics from the National University of Singapore (NUS) in 2013 and continued working there as a post-doctoral fellow before joining LUMS in August 2014. His research focuses on harnessing the power of realistic quantum systems.

What are these `realistic’ quantum systems and why bother studying them? The fact is that although quantum mechanics is perhaps the most successful theory ever devised and has led to many technological breakthroughs such as transistors, lasers and magnetic resonance imaging, it has been realized that quantum mechanics can be harnessed to do much more - the possibilities are endless! For instance, the power of the quantum can be used for ultra-precise measurements, for unbreakable encryption in communication and even for making computers that will make a mockery of current supercomputers. Unfortunately, there is a major hurdle in the practical large-scale implementation of these new technologies - realistic quantum systems interact with their surroundings, thereby becoming classical, and no longer retain the quantum properties which make them so useful in the first place. Understanding the problem of such realistic ‘open’ quantum systems is thus a key problem in modern physics, with applications in quantum optics, chemical physics, condensed matter and nanotechnology, to name a few.

Title | Publication | Author | Year |
---|---|---|---|

The role of initial system???environment correlations with a spin environment | International Journal of Modern Physics B | Mirza A.R., Jamil M.N., Chaudhry A.Z., | 2024 |

Improving the estimation of environment parameters via a two-qubit scheme | Scientific Reports | Mirza A.R., Chaudhry A.Z., | 2024 |

Continuous dynamical decoupling of spin chains: Inducing two-qubit interactions to generate perfect entanglement | Physical Review A | Irfan A., Hashmi S.F.A., Zaidi S.N., Baig M.U., Ayub W., Chaudhry A.Z., | 2024 |

A generalized framework for the quantum Zeno and anti-Zeno effects in the strong coupling regime | Scientific Reports | Khan G., Soomro H., Baig M.U., Javed I., Chaudhry A.Z., | 2022 |

Spin chain transformations under continuous driving fields | European Physical Journal D | Soomro H., Chaudhry A.Z., | 2022 |

The quantum Zeno and anti-Zeno effects with driving fields in the weak and strong coupling regimes | Scientific Reports | Majeed M., Chaudhry A.Z., | 2021 |

Master equation incorporating the system-environment correlations present in the joint equilibrium state | Physical Review A | Mirza A.R., Zia M., Chaudhry A.Z., | 2021 |

Improving the estimation of environment parameters via initial probe-environment correlations | Physical Review A | Ather H., Chaudhry A.Z., | 2021 |

Geometric phase corrected by initial system-environment correlations | Physical Review A | Austin S., Zahid S., Chaudhry A.Z., | 2020 |

Continuous dynamical decoupling of spin chains: Modulating the spin-environment and spin-spin interactions | Physical Review A | Austin S., Khan M.Q., Mudassar M., Chaudhry A.Z., | 2019 |

The quantum Zeno and anti-Zeno effects: from weak to strong system-environment coupling | European Physical Journal D | Khalid B., Chaudhry A.Z., | 2019 |

Effect of initial system???environment correlations with spin environments | European Physical Journal D | Majeed M., Chaudhry A.Z., | 2019 |

The quantum Zeno and anti-Zeno effects with non-selective projective measurements | Scientific Reports | Majeed M., Chaudhry A.Z., | 2018 |

Analyzing the Quantum Zeno and anti-Zeno effects using optimal projective measurements | Scientific Reports | Aftab M.J., Chaudhry A.Z., | 2017 |

The quantum Zeno and anti-Zeno effects with strong system-environment coupling | Scientific Reports | Chaudhry A.Z., | 2017 |

A general framework for the Quantum Zeno and anti-Zeno effects | Scientific Reports | Chaudhry A.Z., | 2016 |

Optimization of the environment for generating entanglement and spin squeezing | Journal of Physics B: Atomic, Molecular and Optical Physics | Tan D.Y., Chaudhry A.Z., Gong J., | 2015 |

Detecting the presence of weak magnetic fields using nitrogen-vacancy centers | Physical Review A - Atomic, Molecular, and Optical Physics | Chaudhry A.Z., | 2015 |

Utilizing nitrogen-vacancy centers to measure oscillating magnetic fields | Physical Review A - Atomic, Molecular, and Optical Physics | Chaudhry A.Z., | 2014 |

Zeno and anti-Zeno effects on dephasing | Physical Review A - Atomic, Molecular, and Optical Physics | Chaudhry A.Z., Gong J., | 2014 |

The effect of state preparation in a many-body system | Canadian Journal of Chemistry | Chaudhry A.Z., Gong J., | 2014 |

Decoherence induced by a composite environment | Physical Review A - Atomic, Molecular, and Optical Physics | Chaudhry A.Z., Gong J., | 2014 |

Role of initial system-environment correlations: A master equation approach | Physical Review A - Atomic, Molecular, and Optical Physics | Chaudhry A.Z., Gong J., | 2013 |

Amplification and suppression of system-bath-correlation effects in an open many-body system | Physical Review A - Atomic, Molecular, and Optical Physics | Chaudhry A.Z., Gong J., | 2013 |

Protecting and enhancing spin squeezing via continuous dynamical decoupling | Physical Review A - Atomic, Molecular, and Optical Physics | Chaudhry A.Z., Gong J., | 2012 |