Product measurements and fully symmetric measurements in qubit-pair tomography: A numerical study

Abstract

State tomography on qubit pairs is routinely carried out by measuring the two qubits separately, while one expects a higher efficiency from tomography with highly symmetric joint measurements of both qubits. Our numerical study of simulated experiments does not support such expectations.

10 pages, 1 figure, 1 table

References in corpus (4)

• Experimental Quantum State Tomography of Optical Fields and Ultrafast Statistical Sampling
• Experimental Polarization State Tomography using Optimal Polarimeters
• Minimal tomography with entanglement witnesses
• Accuracy of minimal and optimal qubit tomography for finite-length experiments

Cited by in corpus (5)

• Quantum State Tomography with Joint SIC POMs and Product SIC POMs
• Quantum state estimation with informationally overcomplete measurements
• Minimal tomography with entanglement witnesses
• Numerical Estimation Schemes for Quantum Tomography
• Ability of entanglement and purity to help to detect systematic experimental errors