Quantum Tomography of Time-Dependent Nonlinear Hamiltonian Systems
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DOI: 10.1016/s0034-4877(19)30026-6
Abstract: We discuss several models of nonlinear oscillators within the framework of a tomographic probability representation of quantum mechanics. Using the connection between the Green's function and the integrals of motion of quantum systems with the… read more here.
Keywords: nonlinear hamiltonian; time; quantum tomography; tomography time ... See more keywords
Experimental neural network enhanced quantum tomography
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DOI: 10.1038/s41534-020-0248-6
Abstract: Quantum tomography is currently ubiquitous for testing any implementation of a quantum information processing device. Various sophisticated procedures for state and process reconstruction from measured data are well developed and benefit from precise knowledge of… read more here.
Keywords: state; neural network; quantum; quantum tomography ... See more keywords
Stochastic optimization on complex variables and pure-state quantum tomography
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DOI: 10.1038/s41598-019-52289-0
Abstract: Real-valued functions of complex arguments violate the Cauchy-Riemann conditions and, consequently, do not have Taylor series expansion. Therefore, optimization methods based on derivatives cannot be directly applied to this class of functions. This is circumvented… read more here.
Keywords: stochastic optimization; quantum tomography; optimization; complex arguments ... See more keywords
Optimal quantum tomography with constrained measurements arising from unitary bases
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DOI: 10.1142/s0129055x21300053
Abstract: The purpose of this paper is to introduce techniques of obtaining optimal ways to determine a d-level quantum state or distinguish such states. It entails designing constrained elementary measureme... read more here.
Keywords: optimal quantum; quantum tomography; tomography constrained; measurements arising ... See more keywords
Quantum Tomography of Pure States with Projective Measurements Distorted by Experimental Noise
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DOI: 10.12693/aphyspola.139.164
Abstract: The article undertakes the problem of pure state estimation from projective measurements based on photon counting. Two generic frames for qubit tomography are considered -- one composed of the elements of the SIC-POVM and the… read more here.
Keywords: quantum tomography; projective measurements; tomography pure; pure states ... See more keywords