Optimal protocol for quantum state tomography
E. V. Moreva, Yu.I. Bogdanov, A.K. Gavrichenko, S.P. Kulik, I., Tikhonov
TL;DR
This paper presents a practical quantum tomography protocol for pure ququart states using biphoton polarization measurements, achieving high accuracy and optimized measurement schemes for improved state reconstruction.
Contribution
The paper introduces an optimized measurement protocol for quantum state tomography of pure ququart states, enhancing reconstruction accuracy with a fixed data set.
Findings
Achieved state reconstruction accuracy above 0.99
Developed an optimal measurement scheme for biphoton polarization states
Demonstrated practical implementation of the protocol
Abstract
We develop a practical quantum tomography protocol and implement measurements of pure states of ququarts realized with polarization states of photon pairs (biphotons). The method is based on an optimal choice of the measuring scheme's parameters that provides better quality of reconstruction for the fixed set of statistical data. A high accuracy of the state reconstruction (above 0.99) indicates that developed methodology is adequate.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Mechanics and Applications · Orbital Angular Momentum in Optics