3 papers
quant-ph2026
Dicke superposition probes for noise-resilient Heisenberg and super-Heisenberg Metrology
Sudha, B. N. Karthik, K. S. Akhilesh +1
Phase sensing with entangled multi-qubit states in the presence of noise is a central theme of modern quantum metrology. The present work investigates Dicke state superposition pro…
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
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…