42 citations · 100 across the 9 of their papers we have counts for
9 papers
Selective Wigner phase space tomography and its application for studying quantum chaos
Deepesh Khushwani, Priya Batra, V. R. Krithika +1
The quasiprobability distribution of the discrete Wigner function provides a complete description of a quantum state and is, therefore, a useful alternative to the usual density ma…
NMR investigations of Dynamical Tunneling in Spin Systems
V. R. Krithika, M. S. Santhanam, T. S. Mahesh
In the usual quantum tunneling, a low-energy quantum particle penetrates across a physical barrier of higher potential energy, by traversing a classically forbidden region, and fin…
Observation of quantum phase-synchronization in a nuclear spin-system
V. R. Krithika, Parvinder Solanki, Sai Vinjanampathy +1
We report an experimental study of phase-synchronization in a pair of interacting nuclear spins subjected to an external drive in nuclear magnetic resonance architecture. A weak tr…
Robust Quantum Control using Hybrid Pulse Engineering
M. Harshanth Ram, V. R. Krithika, Priya Batra +1
The development of efficient algorithms that generate robust quantum controls is crucial for the realization of quantum technologies. The commonly used gradient-based optimization…
Tomographic entanglement indicators from NMR experiments
B. Sharmila, V. R. Krithika, Soham Pal +3
In recent years, the performance of different entanglement indicators obtained directly from tomograms has been assessed in continuous-variable and hybrid quantum systems. In this…
Observation of interaction induced blockade and local spin freezing in a NMR quantum simulator
V. R. Krithika, Soham Pal, Rejish Nath +1
We experimentally emulate interaction induced blockade and local spin freezing in two and three qubit Nuclear Magnetic Resonance (NMR) architecture. These phenomena are identical t…
Push-Pull Optimization of Quantum Controls
Priya Batra, V. R. Krithika, T. S. Mahesh
Quantum optimal control involves setting up an objective function that evaluates the quality of an operator representing the realized process w.r.t. the target process. Here we pro…
Unambiguous measurement of information scrambling in a hierarchical star-topology system
Deepak Khurana, V. R. Krithika, T. S. Mahesh
We investigate the scrambling of information in a hierarchical star-topology system using out-of-time-ordered correlation (OTOC) functions. The system consists of a central qubit d…
NMR studies of quantum chaos in a two-qubit kicked top
V R Krithika, V S Anjusha, Udaysinh T. Bhosale +1
Quantum chaotic kicked top model is implemented experimentally in a two qubit system comprising of a pair of spin-1/2 nuclei using Nuclear Magnetic Resonance techniques. The essent…