Results 51 to 60 of about 76,745 (286)

Asymptotic equivalence of quantum state tomography and noisy matrix completion

open access: yes, 2013
Matrix completion and quantum tomography are two unrelated research areas with great current interest in many modern scientific studies. This paper investigates the statistical relationship between trace regression in matrix completion and quantum state ...
Wang, Yazhen
core   +1 more source

Experimental investigation of pulsed entangled photons and photonic quantum channels

open access: yes, 2002
The development of key devices and systems in quantum information technology, such as entangled particle sources, quantum gates and quantum cryptographic systems, requires a reliable and well-established method for characterizing how well the devices or ...
Hiroshima, Tohya   +7 more
core   +1 more source

Quantum assemblage tomography

open access: yesPhysical Review A
Final published ...
Luis Villegas-Aguilar   +9 more
openaire   +2 more sources

Tomography of Parametrized Quantum States

open access: yesPRX Quantum
Characterizing quantum systems is a fundamental task that enables the development of quantum technologies. Various approaches, ranging from full tomography to instances of classical shadows, have been proposed to this end.
Franz J. Schreiber   +2 more
doaj   +1 more source

Quantum Tomography of Microwave Region

open access: yesEPJ Web of Conferences, 2015
An alternative method of reconstruction of the density matrix of microwave range created in the maser cavity is proposed. Here a technique for measuring the probability density of the quadrature field for different phases is presented.
Miroshnichenko G.P.
doaj   +1 more source

Continuous phase-space representations for finite-dimensional quantum states and their tomography

open access: yes, 2019
Continuous phase spaces have become a powerful tool for describing, analyzing, and tomographically reconstructing quantum states in quantum optics and beyond. A plethora of these phase-space techniques are known, however a thorough understanding of their
Glaser, Steffen J.   +2 more
core   +1 more source

Colorectal cancer‐derived FGF19 is a metabolically active serum biomarker that exerts enteroendocrine effects on mouse liver

open access: yesMolecular Oncology, EarlyView.
Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley   +5 more
wiley   +1 more source

Boosting projective methods for quantum process and detector tomography

open access: yesPhysical Review Research
We introduce two methods for quantum process and detector tomography. In the quantum process tomography method, we develop an analytical procedure for projecting the linear inversion estimation of a quantum channel onto the set of completely positive ...
Júlia Barberà-Rodríguez   +3 more
doaj   +1 more source

Tomographic Universality of the Discrete Wigner Function

open access: yesQuantum Reports
We observe that the discrete Wigner functions (DWFs) of n-partite systems with odd local dimensions are tomographically universal, as reflected in the delta function form of the DWF for any stabilizer. However, in the n-qubit case, this property does not
Isabel Sainz   +3 more
doaj   +1 more source

A de Finetti Representation Theorem for Quantum Process Tomography

open access: yes, 2003
In quantum process tomography, it is possible to express the experimenter's prior information as a sequence of quantum operations, i.e., trace-preserving completely positive maps.
Christopher A. Fuchs   +6 more
core   +1 more source

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