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19972026
most citedQuantum discord and classical correlation can tighten the uncertainty principle in the presence of quantum memory

165 citations

Showing quant-phShow all

61 papers · 1 filter

quant-ph2025

Three-qubit W state tomography via full and marginal state reconstructions on ibm_osaka

H. Talath, B. P. Govindaraja, B. G. Divyamani +3

We present a three-qubit quantum state tomography scheme requiring a set of 17 measurement settings, significantly reducing the experimental overhead compared to the conventional 6…

quant-ph2024★ 2 cited

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…

quant-ph2024

Lorentz canoncial forms of two-qubit states

Sudha, A. R. Usha Devi, B. N. Karthik +4

The Bloch sphere provides an elegant way of visualizing a qubit. Analogous representation of the simplest composite state of two-qubits has attracted significant attention. Here we…

quant-ph2023

Entanglement and volume monogamy features of permutation symmetric N-qubit pure states with N-distinct spinors: GHZ and WWbar states

Sudha, Usha Devi A R, Akshata Shenoy H +4

We explore the entanglement features of pure symmetric N-qubit states characterized by N-distinct spinors with a particular focus on the Greenberger-Horne-Zeilinger(GHZ) states and…

quant-ph2023

Lorentz invariants of pure three-qubit states

A R Usha Devi, Sudha, H Akshata Shenoy +2

Extending the mathematical framework of Phys. Rev. A 102, 052419 (2020) we construct Lorentz invariant quantities of pure three-qubit states. This method serves as a bridge between…

quant-ph2023★ 7 cited

Canonical steering ellipsoids of pure symmetric multiqubit states with two distinct spinors and volume monogamy of steering

B G Divyamani, I Reena, Prasanta K Panigrahi +2

Quantum steering ellipsoid formalism provides a faithful representation of all two-qubit states and helps in obtaining correlation properties of the state through the steering elli…