Results 1 to 10 of about 1,075,816 (186)
Multipass quantum process tomography [PDF]
Scientific ReportsWe introduce a method to enhance the precision and accuracy of Quantum Process Tomography (QPT) by mitigating the errors caused by state preparation and measurement (SPAM), readout and shot noise.
Stancho G. Stanchev, Nikolay V. Vitanov
doaj +4 more sources
Variational Quantum Process Tomography of Non-Unitaries [PDF]
Entropy, 2023 Quantum process tomography is a fundamental and critical benchmarking and certification tool that is capable of fully characterizing an unknown quantum process.
Shichuan Xue +4 more
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Quantum Process Nonclassicality [PDF]
Physical Review Letters, 2013 We propose a definition of nonclassicality for a single-mode quantum-optical process based on its action on coherent states. If a quantum process transforms a coherent state to a nonclassical state, it is verified to be nonclassical.
Bellini, Marco +5 more
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Quantum process capability. [PDF]
Sci Rep, 2019 AbstractPhysical processes in the quantum regime possess non-classical properties of quantum mechanics. However, methods for quantitatively identifying such processes are still lacking. Accordingly, in this study, we develop a framework for characterizing and quantifying the ability of processes to cause quantum-mechanical effects on physical systems ...
Kuo CC +5 more
europepmc +5 more sources
Implementing efficient selective quantum process tomography of superconducting quantum gates on IBM quantum experience [PDF]
Scientific Reports, 2022 The experimental implementation of selective quantum process tomography (SQPT) involves computing individual elements of the process matrix with the help of a special set of states called quantum 2-design states.
Akshay Gaikwad +3 more
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Experimental Quantum Process Discrimination [PDF]
Physical Review Letters, 2008 Discrimination between unknown processes chosen from a finite set is experimentally shown to be possible even in the case of non-orthogonal processes.
A. Y. Kitaev +4 more
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Ancilla-assisted quantum process tomography [PDF]
Physical Review Letters, 2003 Complete and precise characterization of a quantum dynamical process can be achieved via the method of quantum process tomography. Using a source of correlated photons, we have implemented several methods investigating a wide range of processes, e.g ...
Altepeter, J. B. +8 more
core +7 more sources
Quantum Process Tomography of the Quantum Fourier Transform [PDF]
The Journal of Chemical Physics, 2004 The results of quantum process tomography on a three-qubit nuclear magnetic resonance quantum information processor are presented, and shown to be consistent with a detailed model of the system-plus-apparatus used for the experiments.
David G. Cory +8 more
core +3 more sources
Quantum process randomness [PDF]
Physics Letters A, 2021 We study the optimization of any quantum process by minimizing the "randomness" in the measurement result at the output of that quantum process. We conceptualize and propose a measure of such randomness and inquire whether an optimization of the quantum process based on that measure, can reach the point where the process operates with maximum fidelity.
Sreetama Das +3 more
openaire +2 more sources
Projected Least-Squares Quantum Process Tomography [PDF]
Quantum, 2022 We propose and investigate a new method of quantum process tomography (QPT) which we call projected least squares (PLS). In short, PLS consists of first computing the least-squares estimator of the Choi matrix of an unknown channel, and subsequently ...
Trystan Surawy-Stepney +3 more
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