21 citations · 93 across the 13 of their papers we have counts for
14 papers
Periodic-Pulse Control of Collective Emission and Photon Statistics in Interacting Quantum Emitters
Kavalambramalil George Paulson, Fu Li, Hanna Terletska
We investigate the collective emission spectra and photon correlations of two identical dipole-dipole-coupled emitters under continuous-wave (CW) and periodic pulsed driving. Our r…
Harnessing quantumness of states using discrete Wigner functions under (non)-Markovian quantum channels
Jai Lalita, K. G. Paulson, Subhashish Banerjee
The negativity of the discrete Wigner functions (DWFs) is a measure of non-classicality and is often used to quantify the degree of quantum coherence in a system. The study of Wign…
Quantum speed of evolution of neutral mesons
Subhashish Banerjee, K. G. Paulson
We investigate the quantum-mechanical time-evolution speed limit for neutral and mesons, both single as well as correlated, within the framework of open quantum systems. Th…
Quantum speed limit for the creation and decay of quantum correlations
K. G Paulson, Subhashish Banerjee
We derive Margolus-Levitin and Mandelstamm-Tamm type bound on the quantum speed limit time for the creation and decay of quantum correlations by an amount in a quantum system evolv…
Quantum correlations and speed limit of central spin system
Devvrat Tiwari, K. G. Paulson, Subhashish Banerjee
In this article, we consider single, and two-qubit central spin systems interacting with spin baths and discuss their dynamical properties. We consider the cases of interacting and…
Phase covariant channel: Quantum speed limit of evolution
Riya Baruah, K. G. Paulson, Subhashish Banerjee
The quantum speed of evolution for the phase covariant map is investigated. This involves absorption, emission and dephasing processes. We consider the maps under various combinati…
Quantum speed limit time: role of coherence
K. G. Paulson, Subhashish Banerjee
The minimum evolution time between multi-qubit quantum states is estimated for non-Markovian quantum channels. We consider the maximally coherent pure and mixed states as well as m…
The effect of quantum memory on quantum speed limit time for CP-(in)divisible channels
K. G Paulson, Subhashish Banerjee, R. Srikanth
Quantum speed limit time defines the limit on the minimum time required for a quantum system to evolve between two states. Investigation of bounds on speed limit time of quantum sy…
Ground state many-body quantum entanglement of frustrated transverse field models on square lattice
Vikas Vijigiri, K G Paulson, Saptarshi Mandal +1
We study the ground state (GS) many-body quantum entanglement of two different transverse field models on a quasi-2D square lattice relevant to a Hydrogen-bonded crystal, i.e, squa…
Hierarchy of quantum correlations under non-Markovian dynamics
K. G Paulson, Ekta Panwar, Subhashish Banerjee +1
We investigate the dynamics of quantum correlations (QC) under the effects of reservoir memory, as a resource for quantum information and computation tasks. Quantum correlations of…
Tri-partite non-maximally entangled mixed states as a resource for optimum controlled quantum teleportation fidelity
K. G. Paulson, Prasanta K. Panigrahi
Three-qubit mixed states are used as a channel for controlled quantum teleportation (CQT) of single-qubit states. The connection between different channel parameters to achieve max…
Rank dependent bounds on mixedness and entanglement for quantum teleportation
K. G Paulson, S. V. M Satyanarayana
Entanglement and mixedness of a bipartite mixed state resource are crucial for the success of quantum teleportation. Upper bounds on measures of mixedness, namely, von Neumann entr…
Dilapidation of nonlocal correlations of two qubit states in noisy environment
K. G. Paulson, S. V. M. Satyanarayana
Composite quantum systems exhibit non-local correlations. These counter intuitive correlations form a resource for quantum information processing and quantum computation. In our pr…
Relevance of rank for a mixed state quantum teleportation resource
K. G. Paulson, S. V. M. Satyanarayana
Mixed entangled states are generic resource for quantum teleportation. Optimal teleportation fidelity measures the success of quantum teleportation. The relevance of rank in the te…