25 citations · 41 across the 8 of their papers we have counts for
8 papers
Effect of repeated projective measurements on a two-qubit system undergoing dephasing
Hammas Hussain Ali, Muhammad Abdullah Ijaz, Fariha Hassan +2
The entanglement dynamics of an exactly solvable, pure dephasing model are studied. Repeated projective measurements are performed on the two-qubit system. Due to the system-enviro…
Improving the estimation of the environment parameters via a two-qubit scheme
Ali Raza Mirza, Adam Zaman Chaudhry
We demonstrate how using two qubits can drastically improve the estimation of environment parameters as compared to using only a single qubit. The two qubits are coupled to a commo…
The role of initial system-environment correlations with a spin environment
Ali Raza Mirza, Mah Noor Jamil, Adam Zaman Chaudhry
Open quantum systems are a subject of immense interest as their understanding is crucial in the implementation of modern quantum technologies. In the study of their dynamics, the r…
Detection of weak magnetic fields using nitrogen-vacancy centers with maximum confidence
Ghazi Khan, Adam Zaman Chaudhry
The problem of detection of magnetic fields using NV centers, that is, to check whether a weak magnetic field is present or not, can be tackled using quantum state discrimination t…
The quantum Zeno and anti-Zeno effects in the strong coupling regime
Ghazi Khan, Hudaiba Soomro, Muhammad Usman Baig +2
It is well known that repeated projective measurements can either speed up (the Zeno effect) or slow down (the anti-Zeno effect) quantum evolution. Until now, however, studies of t…
Detecting magnetic fields using Nitrogen-Vacancy Centers
Adam Zaman Chaudhry
We show how nitrogen-vacancy centers can be used to `detect' magnetic fields, that is, to find out whether a magnetic field, about which we may not have complete information, is ac…