Results 1 to 10 of about 1,077,565 (335)
Multipass quantum process tomography [PDF]
Scientific ReportsWe introduce a method to enhance the precision and accuracy of Quantum Process Tomography (QPT) by mitigating the errors caused by state preparation and measurement (SPAM), readout and shot noise.
Stancho G. Stanchev, Nikolay V. Vitanov
doaj +4 more sources
Variational Quantum Process Tomography of Non-Unitaries [PDF]
Entropy, 2023 Quantum process tomography is a fundamental and critical benchmarking and certification tool that is capable of fully characterizing an unknown quantum process.
Shichuan Xue +4 more
doaj +2 more sources
Implementing efficient selective quantum process tomography of superconducting quantum gates on IBM quantum experience [PDF]
Scientific Reports, 2022 The experimental implementation of selective quantum process tomography (SQPT) involves computing individual elements of the process matrix with the help of a special set of states called quantum 2-design states.
Akshay Gaikwad +3 more
doaj +2 more sources
Projected Least-Squares Quantum Process Tomography [PDF]
Quantum, 2022 We propose and investigate a new method of quantum process tomography (QPT) which we call projected least squares (PLS). In short, PLS consists of first computing the least-squares estimator of the Choi matrix of an unknown channel, and subsequently ...
Trystan Surawy-Stepney +3 more
doaj +1 more source
Heat impact during laser ablation extraction of mineralised tissue micropillars
Scientific Reports, 2021 The underlying constraint of ultrashort pulsed laser ablation in both the clinical and micromachining setting is the uncertainty regarding the impact on the composition of material surrounding the ablated region.
Samuel McPhee +3 more
doaj +1 more source
Non-Markovian Quantum Process Tomography
PRX Quantum, 2022 Characterization protocols have so far played a central role in the development of noisy intermediate-scale quantum (NISQ) computers capable of impressive quantum feats.
G.A.L. White +4 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 +7 more
doaj +1 more source
Model-Predictive Quantum Control via Hamiltonian Learning
IEEE 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
Resonant tunneling in disordered borophene nanoribbons with line defects
npj Computational Materials, 2022 Recently, borophene has attracted extensive interest as the wonder material, showing that line defects (LDs) occur widely at the interface between $$\nu _{1/5}$$ ν 1 / 5 and $$\nu _{1/6}$$ ν 1 / 6 boron sheets.
Pei-Jia Hu +7 more
doaj +1 more source
Witnessing quantum memory in non-Markovian processes [PDF]
Quantum, 2021 We present a method to detect quantum memory in a non-Markovian process. We call a process Markovian when the environment does not provide a memory that retains correlations across different system-environment interactions.
Christina Giarmatzi, Fabio Costa
doaj +1 more source