Better quantum control does not imply better discrimination effect
Sign Up to like & getrecommendations! Published in 2020 at "Quantum Information Processing"
DOI: 10.1007/s11128-020-02667-9
Abstract: Quantum feedback control (QFBC) and quantum feedforward control (QFFC) are two major techniques for protecting quantum states against decoherence. Based on this, Guo et al. proposed a scheme by combining the QFFC and the minimum-error… read more here.
Keywords: control; effect; quantum control; discrimination ... See more keywords
Collaborative Learning of High-Precision Quantum Control and Tomography
Sign Up to like & getrecommendations! Published in 2019 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2019.12.633
Abstract: Abstract High-precision control of quantum states and gate operations is essential to the hardware implementation of quantum computation. Recently, online calibration has become an important tool for correcting errors induced by parameter shifts or environmental… read more here.
Keywords: quantum control; control; high precision; tomography ... See more keywords
Learning in quantum control: High-dimensional global optimization for noisy quantum dynamics
Sign Up to like & getrecommendations! Published in 2017 at "Neurocomputing"
DOI: 10.1016/j.neucom.2016.12.087
Abstract: Abstract Quantum control is valuable for various quantum technologies such as high-fidelity gates for universal quantum computing, adaptive quantum-enhanced metrology, and ultra-cold atom manipulation. Although supervised machine learning and reinforcement learning are widely used for… read more here.
Keywords: noisy; quantum; greedy algorithms; quantum control ... See more keywords
Light quantum control of persisting Higgs modes in iron-based superconductors
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-020-20350-6
Abstract: The Higgs mechanism, i.e., spontaneous symmetry breaking of the quantum vacuum, is a cross-disciplinary principle, universal for understanding dark energy, antimatter and quantum materials, from superconductivity to magnetism. Unlike one-band superconductors (SCs), a conceptually distinct Higgs… read more here.
Keywords: interband; control; higgs mode; quantum control ... See more keywords
Fast quantum control in dissipative systems using dissipationless solutions
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-39731-z
Abstract: We report on a systematic geometric procedure, built up on solutions designed in the absence of dissipation, to mitigate the effects of dissipation in the control of open quantum systems. Our method addresses a standard… read more here.
Keywords: systems using; fast quantum; dissipative systems; quantum control ... See more keywords
Uncomputability and complexity of quantum control
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-019-56804-1
Abstract: In laboratory and numerical experiments, physical quantities are known with a finite precision and described by rational numbers. Based on this, we deduce that quantum control problems both for open and closed systems are in… read more here.
Keywords: quantum control; control problems; control; uncomputability complexity ... See more keywords
Quantum control using quantum memory
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-78455-3
Abstract: We propose a new quantum numerical scheme to control the dynamics of a quantum walker in a two dimensional space–time grid. More specifically, we show how, introducing a quantum memory for each of the spatial… read more here.
Keywords: control using; quantum control; quantum; quantum memory ... See more keywords
Quantum control operations with fuzzy evolution trajectories based on polyharmonic magnetic fields
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-79309-8
Abstract: We explore a class of quantum control operations based on a wide family of harmonic magnetic fields that vary softly in time. Depending on the magnetic field amplitudes taking part, these control operations can produce… read more here.
Keywords: magnetic fields; operations fuzzy; evolution; control ... See more keywords
Quantum control of reactions and collisions at ultralow temperatures.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Society reviews"
DOI: 10.1039/d1cs01040a
Abstract: At temperatures close to absolute zero, the molecular reactions and collisions are dominantly governed by quantum mechanics. Remarkable quantum phenomena such as quantum tunneling, quantum threshold behavior, quantum resonances, quantum interference, and quantum statistics are… read more here.
Keywords: ultralow temperatures; reactions collisions; ultracold reactions; ultracold molecules ... See more keywords
Dynamics investigation of the quantum-control-assisted multipartite uncertainty relation in heisenberg model with dzyaloshinski-moriya interaction
Sign Up to like & getrecommendations! Published in 2023 at "Physica Scripta"
DOI: 10.1088/1402-4896/accee4
Abstract: Recently, Zheng constructs a quantum-control-assisted multipartite variance-based uncertainty relation, which successfully extends the conditional uncertainty relation to the multipartite case [Annalen der physik, 533, 2100014 (2021)]. We here investigate the dynamics of the new uncertainty… read more here.
Keywords: uncertainty relation; uncertainty; control assisted; assisted multipartite ... See more keywords
Robust quantum control in games: An adversarial learning approach
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.101.052317
Abstract: High-precision operation of quantum computing systems must be robust to uncertainties and noises in the quantum hardware. In this paper, we show that through a game played between the uncertainties (or noises) and the controls,… read more here.
Keywords: adversarial learning; robust quantum; quantum control; approach ... See more keywords