3 papers
quant-ph2025
Coherence based on positive operator-valued measures for standard and concatenated quantum state discrimination with inconclusive results
L. F. Melo, O. Jiménez, L. Neves
The optimal measurement that discriminates nonorthogonal quantum states with fixed rates of inconclusive outcomes (FRIO) can be decomposed into an assisted separation of the inputs…
quant-ph2024
Ptychographic estimation of pure multiqubit states in a quantum device
Warley M. S. Alves, Leonardo Neves
Quantum ptychography is a method for estimating an unknown pure quantum state by subjecting it to overlapping projections, each one followed by a projective measurement on a single…
quant-ph2024
Experimental optimal discrimination of states of a qubit with fixed rates of inconclusive outcomes
L. F. Melo, M. A. SolÃs-Prosser, O. Jiménez +2
In a general optimized measurement scheme for discriminating between nonorthogonal quantum states, the error rate is minimized under the constraint of a fixed rate of inconclusive…