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Measurement-driven reconstruction of many-particle quantum processes by semidefinite programming with application to photosynthetic light harvesting
2012
Physical Review A. Atomic, Molecular, and Optical Physics
Quantum measurements provide a trove of information about a quantum system or process without solution of the Schrödnger equation, and in principle, the associated density matrix is a function of these measurements. Inversion of the measurements can produce an estimate of the density matrix, but this estimate may be unphysical, especially when the measurements are noisy or incomplete. We develop a general approach based on semidefinite programming [D. A. Mazziotti, Phys. Rev. Lett. 106, 083001
doi:10.1103/physreva.86.012512
fatcat:v5qh5acsvzfu7aix52nqrikd6m