31 citations · 210 across the 13 of their papers we have counts for
14 papers
Multi-photon multi-quantum transitions in the spin-3/2 silicon-vacancy centers of SiC
Harpreet Singh, Mario Alex Hollberg, Andrei N. Anisimov +2
Silicon vacancy centers in silicon carbide are promising candidates for storing and manipulating quantum information. Implementation of fast quantum gates is an essential requireme…
Using a Lindbladian approach to model decoherence in two coupled nuclear spins via correlated phase-damping and amplitude damping noise channels
Harpreet Singh, Arvind, Kavita Dorai
In this work, we studied the relaxation dynamics of coherences of different order present in a system of two coupled nuclear spins. We used a previously designed model for intrinsi…
Optical spin initialization of spin-3/2 silicon vacancy centers in 6H-SiC at room temperature
Harpreet Singh, Andrei N. Anisimov, I. D. Breev +2
Silicon vacancies in silicon carbide have been proposed as an alternative to nitrogen vacancy centers in diamonds for spintronics and quantum technologies. An important preconditio…
Experimental characterization of spin-3/2 silicon vacancy centers in 6H-SiC
Harpreet Singh, Andrei N. Anisimov, Sergei S. Nagalyuk +3
Silicon carbide (SiC) hosts many interesting defects that can potentially serve as qubits for a range of advanced quantum technologies. Some of them have very interesting propertie…
In-medium masses and magnetic moments of decuplet baryons
Harpreet Singh, Arvind Kumar, Harleen Dahiya
The magnetic moments of baryon decuplet are studied in vacuum as well as in the symmetric nuclear matter at finite temperature using a chiral SU(3) quark mean field model approach.…
Experimental Classification of Entanglement in Arbitrary Three-Qubit States on an NMR Quantum Information Processor
Amandeep Singh, Harpreet Singh, Kavita Dorai +1
We undertake experimental detection of the entanglement present in arbitrary three-qubit pure quantum states on an NMR quantum information processor. Measurements of only four obse…
Generation, estimation, and protection of novel quantum states of spin systems
Harpreet Singh
This thesis deals with the generation, estimation and preservation of novel quantum states of two and three qubits, on an NMR quantum information processor. Using the maximum likel…
Octet Baryon Masses and Magnetic Moments in Hot and Dense Isospin Asymmetric Nuclear Matter
Harpreet Singh, Arvind Kumar, Harleen Dahiya
Medium modification of the magnetic moments of octet baryons in the isospin asymmetric nuclear medium at finite temperature has been calculated using medium modified quark and bary…
Efficient experimental design of high-fidelity three-qubit quantum gates via genetic programming
Amit Devra, Prithviraj Prabhu, Harpreet Singh +2
We have designed efficient quantum circuits for the three-qubit Toffoli (controlled-controlled NOT) and the Fredkin (controlled-SWAP) gate, optimized via genetic programming method…
Evolution of tripartite entangled states in a decohering environment and their experimental protection using dynamical decoupling
Harpreet Singh, Arvind, Kavita Dorai
We embarked upon the task of experimental protection of different classes of tripartite entangled states, namely the maximally entangled GHZ and W states and the …
Experimental protection of arbitrary states in a two-qubit subspace by nested Uhrig dynamical decoupling
Harpreet Singh, Arvind, Kavita Dorai
We experimentally demonstrate the efficacy of a three-layer nested Uhrig dynamical decoupling (NUDD) sequence to preserve arbitrary quantum states in a two-dimensional subspace of…
Magnetic Moments of Octet Baryons in Hot and Dense Nuclear Matter
Harpreet Singh, Arvind Kumar, Harleen Dahiya
We have calculated the in-medium magnetic moments of octet baryons in the presence of hot and dense symmetric nuclear matter. Effective magnetic moments of baryons have been derive…
Constructing valid density matrices on an NMR quantum information processor via maximum likelihood estimation
Harpreet Singh, Arvind, Kavita Dorai
Estimation of quantum states is one of the most important steps in any quantum information processing experiment. A naive reconstruction of the density matrix from experimental mea…
Experimental protection against evolution of states in a subspace via a super-Zeno scheme on an NMR quantum information processor
Harpreet Singh, Arvind, Kavita Dorai
We experimentally demonstrate the freezing of evolution of quantum states in one- and two-dimensional subspaces of two qubits, on an NMR quantum information processor. State evolut…