Results 21 to 30 of about 11,924,253 (266)

Theory-independent monitoring of the decoherence of a superconducting qubit with generalized contextuality [PDF]

open access: yesNature Communications
Characterizing the nonclassicality of quantum systems under minimal assumptions is an important challenge for quantum foundations and technology. Here we introduce a theory-independent method of process tomography and perform it on a superconducting ...
Albert Aloy   +4 more
doaj   +2 more sources

Quantum process tomography of adiabatic and superadiabatic Raman passage [PDF]

open access: yes, 2021
| openaire: EC/H2020/862644/EU//QUARTETQuantum control methods for three-level systems have become recently an important direction of research in quantum information science and technology.
Gheorghe Sorin Paraoanu   +3 more
core   +1 more source

Quantum process tomography of the quantum Fourier transform [PDF]

open access: yesThe 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. The quantum operation studied was the quantum Fourier transform, which is important in several quantum algorithms and ...
Weinstein, Yaakov S.   +6 more
openaire   +3 more sources

Objective compressive quantum process tomography [PDF]

open access: yesPhysical Review A, 2020
7 pages, 4 ...
Y. S. Teo   +8 more
openaire   +4 more sources

Quantum Process Tomography of a Controlled-NOT Gate [PDF]

open access: yesPhysical Review Letters, 2004
We demonstrate complete characterization of a two-qubit entangling process - a linear optics controlled-NOT gate operating with coincident detection - by quantum process tomography. We use maximum-likelihood estimation to convert the experimental data into a physical process matrix.
O'Brien, JL   +6 more
openaire   +7 more sources

Self-consistent quantum process tomography [PDF]

open access: yesPhysical Review A, 2013
Quantum process tomography is a necessary tool for verifying quantum gates and diagnosing faults in architectures and gate design. We show that the standard approach of process tomography is grossly inaccurate in the case where the states and measurement operators used to interrogate the system are generated by gates that have some systematic error, a ...
Merkel, Seth T.   +7 more
openaire   +2 more sources

Model-Predictive Quantum Control via Hamiltonian Learning

open access: yesIEEE Transactions on Quantum Engineering, 2022
This article proposes an end-to-end framework for the learning-enabled control of closed quantum systems. The proposed learning technique is the first of its kind to utilize a hierarchical design, which layers probing control, quantum state tomography ...
MAISON CLOUATRE   +2 more
doaj   +1 more source

Selective and efficient quantum process tomography [PDF]

open access: yesPhysical Review A, 2009
9 pages, 5 ...
Bendersky, Ariel Martin   +2 more
openaire   +4 more sources

Single-scan quantum process tomography [PDF]

open access: yesPhysical Review A, 2014
The standard procedure for quantum process tomography (QPT) involves applying the quantum process on a system initialized in each of a complete set of orthonormal states. The corresponding outputs are then characterized by quantum state tomography (QST), which itself requires the measurement of non-commuting observables realized by independent ...
Shukla, Abhishek, Mahesh, T. S.
openaire   +2 more sources

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