Results 51 to 60 of about 11,437,873 (278)

Computed tomography: acquisition process, technology and current state

Tecnura, 2016
Computed tomography is a noninvasive scan technique widely applied in areas such as medicine, industry, and geology. This technique allows the three-dimensional reconstruction of the internal structure of an object which is lighted with an X-rays source.
Óscar Javier Espitia Mendoza, Yuri Hercilia Mejía Melgarejo, Henry Arguello Fuentes   +2 more
doaj   +1 more source

Quantum process tomography of a high-dimensional quantum communication channel [PDF]

Quantum, 2019
The characterization of quantum processes, e.g. communication channels, is an essential ingredient for establishing quantum information systems. For quantum key distribution protocols, the amount of overall noise in the channel determines the rate at ...
Frédéric Bouchard, Felix Hufnagel, Dominik Koutný, Aazad Abbas, Alicia Sit, Khabat Heshami, Robert Fickler, Ebrahim Karimi   +7 more
doaj   +1 more source

Mapping the three dimensional water dynamics in heterogeneous sands using thermal neutrons

, 2005
The transport of dissolved pollutants and nutrients in soils depends on the spatial and temporal distribution of soil water. The water flow is strongly affected by the presence of air and the heterogeneity of the soil structure.
Schaap, J. (author), Laeser, H. (author), Kaestner, A. (author), Frei, G. (author), Hassanein, R. (author), Fluehler, H. (author), Vontobel, P. (author), Lehmann, P. (author), Lehmann, E. (author)   +8 more
core   +1 more source

Photonic processor benchmarking for variational quantum process tomography

New Journal of Physics
We present a quantum-analogous experimental demonstration of variational quantum process tomography using an optical processor. This approach leverages classical one-hot encoding and unitary decomposition to perform the variational quantum algorithm on a
Vladlen Galetsky, Paul Kohl, Janis Nötzel   +2 more
doaj   +1 more source

Infant Embryonal CNS Tumors: Molecular Insights and Treatment Considerations for Contemporary Pediatric Neuro‐Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan, Mariah Wright‐Nadkarni, Mohamed S. Abdelbaki, Girish Dhall   +3 more
wiley   +1 more source

X-ray computed tomography specifically adapted for monitoring of dynamic processes in material science and chemistry

, 2022
X-ray computed tomography (CT) is an established method in non-destructive testing / evaluation (NDT / NDE) applications. A wide range of CT systems is available to the market distinct mainly by resolution properties.
Salamon, Michael, Arzig, Mathias, Schug, Sebastian, Schlechter, Thomas, Fahlbusch, Lars, Schmitt, Michael, Uhlmann, Norman, Reisinger, Stefan, Hofmann, Thomas, Wellmann, Peter, Arlt, Wolfgang   +10 more
core   +1 more source

Multi-time quantum process tomography on a superconducting qubit [PDF]

Quantum
Current quantum technologies are at the cusp of becoming useful, but still face formidable obstacles such as noise. Noise severely limits the ability to scale quantum devices to the point that they would offer an advantage over classical devices.
Christina Giarmatzi, Tyler Jones, Alexei Gilchrist, Prasanna Pakkiam, Arkady Fedorov, Fabio Costa   +5 more
doaj   +1 more source

Faithfulness and Sensitivity for Ancilla-Assisted Process Tomography

Physical Review Letters, 2023
A system-ancilla bipartite state capable of containing the complete information of an unknown quantum channel acting on the system is called faithful. The equivalence between faithfulness of state and invertibility of the corresponding Jamiolkowski map proved by D'Ariano and Presti has been a useful characterization for ancilla-assisted process ...
Lie, Seok Hyung, Jeong, Hyunseok
openaire   +4 more sources

Ewing Sarcoma in Infants and Children Under 2 Years of Age: A French Retrospective Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Ewing sarcoma, the second most common primary bone cancer in children, requires intensive treatment that may lead to significant long‐term sequelae, particularly in infants. We retrospectively analyzed data from 1621 French patients treated between 1988 and 2015 within the EW88/93/97 or EE99 trials, focusing on 17 infants diagnosed before 24 ...
Elodie Verdier, Nathalie Cozic, Marie‐Dominique Tabone, Gaelle Pierron, Perrine Marec‐Berard, Sarah Winter, Gabriel Revon‐Rivière, Cyril Lervat, Dominique Plantaz, Marie‐Pierre Castex, Gregory Guimard, Estelle Thebaud, Stephanie Proust, Laure Saumet, Natacha Entz‐Werle, Sophie Taque, Cécile Vérité, Marta Jimenez, Nathalie Gaspar   +18 more
wiley   +1 more source

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. The quantum operation studied was the quantum Fourier transform, which is important in several quantum algorithms and ...
Weinstein, Yaakov S., Havel, Timothy F., Emerson, Joseph, Boulant, Nicolas, Saraceno, Marcos, Lloyd, Seth, Cory, David G.   +6 more
openaire   +3 more sources