Results 21 to 30 of about 76,745 (286)

On the determination of pure quantum states by the homodyne detection

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2016
The methods of reconstruction of the wave function of a pure state of a quantum system by quadrature distribution measured experimentally by the homodyne detection are considered.
Andrey I Dnestryan
doaj   +1 more source

Choi's Proof and Quantum Process Tomography [PDF]

open access: yes, 2002
Quantum process tomography is a procedure by which an unknown quantum operation can be fully experimentally characterized. We reinterpret Choi's proof of the fact that any completely positive linear map has a Kraus representation [Lin. Alg. and App., 10,
Childs   +17 more
core   +2 more sources

Dynamical quantum tomography [PDF]

open access: yesJournal of Mathematical Physics, 2016
We consider quantum state tomography with measurement procedures of the following type: First, we subject the quantum state we aim to identify to a known time evolution for a desired period of time. Afterwards we perform a measurement with a fixed measurement setup.
openaire   +2 more sources

Adaptive Bayesian quantum tomography [PDF]

open access: yesPhysical Review A, 2012
4 pages, 3 figures, updated references, clarified ...
Huszár, Ferenc, Houlsby, Neil M. T.
openaire   +2 more sources

A practical and efficient approach for Bayesian quantum state estimation

open access: yesNew Journal of Physics, 2020
Bayesian inference is a powerful paradigm for quantum state tomography, treating uncertainty in meaningful and informative ways. Yet the numerical challenges associated with sampling from complex probability distributions hampers Bayesian tomography in ...
Joseph M Lukens   +3 more
doaj   +1 more source

Adaptive quantum state tomography via weak value

open access: yesResults in Physics, 2021
Quantum state tomography strategy via weak value is valid for arbitrary dimensional systems, and can be easily realized. However, the efficiency of quantum state tomography strategy via weak value is lower than that of the conventional quantum state ...
Xuanmin Zhu   +5 more
doaj   +1 more source

Quantum tomography benchmarking [PDF]

open access: yesQuantum Information Processing, 2021
Recent advances in quantum computers and simulators are steadily leading us towards full-scale quantum computing devices. Due to the fact that debugging is necessary to create any computing device, quantum tomography (QT) is a critical milestone on this path. In practice, the choice between different QT methods faces the lack of comparison methodology.
B. I. Bantysh   +2 more
openaire   +3 more sources

Coherent Quantum Tomography [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2016
33 pages, no ...
openaire   +5 more sources

Variational quantum circuits for quantum state tomography [PDF]

open access: yesPhysical Review A, 2020
Quantum state tomography is a key process in most quantum experiments. In this work, we employ quantum machine learning for state tomography. Given an unknown quantum state, it can be learned by maximizing the fidelity between the output of a variational quantum circuit and this state.
Yong Liu   +11 more
openaire   +2 more sources

Self-Guided Quantum Tomography [PDF]

open access: yesPhysical Review Letters, 2014
v2: published ...
openaire   +3 more sources

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