Results 1 to 10 of about 31,457 (170)

Two-stage Estimation for Quantum Detector Tomography: Error Analysis, Numerical and Experimental Results [PDF]

open access: yesIEEE Transactions on Information Theory, 2021
Quantum detector tomography is a fundamental technique for calibrating quantum devices and performing quantum engineering tasks. In this paper, a novel quantum detector tomography method is proposed.
Dong, Daoyi   +5 more
core   +6 more sources

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   +6 more sources

Recursive quantum detector tomography [PDF]

open access: yesNew Journal of Physics, 2012
Conventional tomographic techniques are becoming increasingly infeasible for reconstructing the operators of quantum devices of growing sophistication.
Lijian Zhang   +6 more
doaj   +7 more sources

Precision bounds for characterising quantum measurements [PDF]

open access: yesNature Communications
Quantum measurements, alongside quantum states and processes, form a cornerstone of quantum information processing. However, unlike states and processes, their efficient characterisation remains relatively unexplored.
Aritra Das   +8 more
doaj   +2 more sources

Versatile Wideband Balanced Detector for Quantum Optical Homodyne Tomography [PDF]

open access: yesOptics Communications, 2011
We present a comprehensive theory and an easy to follow method for the design and construction of a wideband homodyne detector for time-domain quantum measurements.
A. MacRae   +23 more
core   +2 more sources

Experimental quantum tomography of a homodyne detector

open access: yesNew Journal of Physics, 2017
We suggest and demonstrate a tomographic method to characterise homodyne detectors at the quantum level. The positive operator measure associated with the detector is expanded in a quadrature basis and probed with a set of coherent states.
Samuele Grandi   +3 more
doaj   +7 more sources

Characterization of entangling properties of quantum measurement via two-mode quantum detector tomography using coherent state probes [PDF]

open access: yesOptics Express, 2019
Entangled measurement is a crucial tool in quantum technology. We propose a new entanglement measure of multi-mode detection, which estimates the amount of entanglement that can be created in a measurement.
Dong, Daoyi   +7 more
core   +5 more sources

Silicon photonics-integrated time-domain balanced homodyne detector for quantum tomography and quantum key distribution

open access: yesNew Journal of Physics, 2023
We designed and experimentally demonstrated a silicon photonics-integrated time-domain balanced homodyne detector (TBHD), containing an optical part of dimensions of 1.5 mm × 0.4 mm.
Yanxiang Jia   +10 more
doaj   +2 more sources

Photon-Counting Detector Computed Tomography and Hepatocellular Carcinoma—A Systematic Review of the Current Evidence [PDF]

open access: yesDiagnostics
Objectives: The aim of this systematic review was to evaluate the current evidence on photon-counting detector computed tomography (PCCT) in hepatocellular carcinoma (HCC) imaging.
Salvatore Claudio Fanni   +8 more
doaj   +2 more sources

Quantum tomography of light states by photon-number-resolving detectors

open access: yesNew Journal of Physics, 2019
We address state reconstruction by photon-number-resolving detectors, and demonstrate that they may be effectively exploited to perform quantum tomography of states of light.
Stefano Olivares   +4 more
doaj   +2 more sources

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