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Qudit Quantum State Tomography [PDF]

open access: yesPhysical Review A, 2002
Recently quantum tomography has been proposed as a fundamental tool for prototyping a few qubit quantum device. It allows the complete reconstruction of the state produced from a given input into the device.
A. G. White   +11 more
core   +6 more sources

Quantum state tomography with quantum shotnoise [PDF]

open access: yesPhysical Review B, 2005
We propose a scheme for a complete reconstruction of one- and two-particle orbital quantum states in mesoscopic conductors. The conductor in the transport state continuously emits orbital quantum states.
J. L. van Velsen   +6 more
core   +3 more sources

Ancilla-assisted quantum process tomography [PDF]

open access: yesPhysical 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 field tomography

open access: yesNew Journal of Physics, 2014
We introduce the concept of quantum field tomography, the efficient and reliable reconstruction of unknown quantum fields based on data of correlation functions.
A Steffens   +3 more
doaj   +4 more sources

Attention-based quantum tomography [PDF]

open access: yesMachine Learning: Science and Technology, 2021
Abstract With rapid progress across platforms for quantum systems, the problem of many-body quantum state reconstruction for noisy quantum states becomes an important challenge. There has been a growing interest in approaching the problem of quantum state reconstruction using generative neural network models.
Peter Cha   +5 more
openaire   +2 more sources

Spectral quantum tomography [PDF]

open access: yesnpj Quantum Information, 2019
AbstractWe introduce spectral quantum tomography, a simple method to extract the eigenvalues of a noisy few-qubit gate, represented by a trace-preserving superoperator, in a SPAM-resistant fashion, using low resources in terms of gate sequence length. The eigenvalues provide detailed gate information, supplementary to known gate-quality measures such ...
Jonas Helsen   +2 more
openaire   +4 more sources

Quantum Zeno Tomography [PDF]

open access: yesFortschritte der Physik, 2001
We show that the resolution "per absorbed particle" of standard absorption tomography can be outperformed by a simple interferometric setup, provided that the different levels of "gray" in the sample are not uniformly distributed. The technique hinges upon the quantum Zeno effect and has been tested in numerical simulations. The scheme we propose could
FACCHI, PAOLO   +4 more
openaire   +3 more sources

Optimal Quantum Tomography [PDF]

open access: yesIEEE Journal of Selected Topics in Quantum Electronics, 2009
14 pages, 3 ...
BISIO, ALESSANDRO   +4 more
openaire   +4 more sources

Learning Temporal Quantum Tomography [PDF]

open access: yesPhysical Review Letters, 2021
Main: 6 pages, 4 figures; Supplementary: 29 pages -> Revised version; Close to the accepted version.
Quoc Hoan Tran, Kohei Nakajima
openaire   +3 more sources

Neural network enhanced measurement efficiency for molecular groundstates

open access: yesMachine Learning: Science and Technology, 2023
It is believed that one of the first useful applications for a quantum computer will be the preparation of groundstates of molecular Hamiltonians. A crucial task involving state preparation and readout is obtaining physical observables of such states ...
Dmitri Iouchtchenko   +3 more
doaj   +1 more source

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