5 papers · 1 filter
Noise cancellation by superposition of channels and superactivation of quantum capacity: Experimental realization by NMR
Deepika Bhargava, Arijit Chatterjee, Vishal Varma +1
Noisy quantum channels degrade quantum resources such as coherence and entanglement and hence pose challenges for realizing quantum technologies. Coherent control of noisy channels…
Investigations on Quantum Correlations and Open Quantum System Dynamics Through Nuclear Spins
Arijit Chatterjee
Nuclear spins provide an ideal platform for studying quantum correlations and open quantum system dynamics across diverse areas, including quantum information, quantum foundations,…
Partial Quantum Shadow Tomography for Structured Operators and its Experimental Demonstration using NMR
Aniket Sengupta, Arijit Chatterjee, G. J. Sreejith +1
Quantum shadow tomography based on the classical shadow representation provides an efficient way to estimate properties of an unknown quantum state without performing a full quantu…
Direct Experimental Observation of Quantum Mpemba Effect without Bath Engineering
Arijit Chatterjee, Sakil Khan, Sachin Jain +1
The quantum Mpemba effect refers to the phenomenon of a quantum system in an initial state, far away from equilibrium, relaxing much faster than a state comparatively nearer to equ…
Enhanced non-macrorealism: Extreme violations of Leggett-Garg inequalities for a system evolving under superposition of unitaries
Arijit Chatterjee, H. S. Karthik, T. S. Mahesh +1
Quantum theory contravenes classical macrorealism by allowing a system to be in a superposition of two or more physically distinct states, producing physical consequences radically…