2020
DOI: 10.1038/s41598-020-67018-1
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Unsupervised Quantum Gate Control for Gate-Model Quantum Computers

Abstract: In near-term quantum computers, the operations are realized by unitary quantum gates. The precise and stable working mechanism of quantum gates is essential for the implementation of any complex quantum computations. Here, we define a method for the unsupervised control of quantum gates in near-term quantum computers. We model a scenario in which a tensor product structure of non-stable quantum gates is not controllable in terms of control theory. We prove that the non-stable quantum gate becomes controllable … Show more

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Cited by 14 publications
(6 citation statements)
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“…Quantum computing technologies are categorized into two types: quantum gate computers (Arute et al, 2019;Gyongyosi, 2020) and Ising machines. Quantum gate computers are for universal computing, whereas Ising machines specialize in searching for solutions of combinatorial optimization problems.…”
Section: Digital Annealermentioning
confidence: 99%
“…Quantum computing technologies are categorized into two types: quantum gate computers (Arute et al, 2019;Gyongyosi, 2020) and Ising machines. Quantum gate computers are for universal computing, whereas Ising machines specialize in searching for solutions of combinatorial optimization problems.…”
Section: Digital Annealermentioning
confidence: 99%
“…A method for the evaluation of objective function connectivity in gate-model quantum computers has been proposed in 33 . An unsupervised machine learning method for quantum gate control in gate-model quantum computers has been defined in 34 . In 35 , a framework has been defined for the circuit depth reduction of gate-model quantum computers.…”
Section: Related Workmentioning
confidence: 99%
“…This is a powerful technique used in quantum optics to analyze field quadratures and reconstruct quantum states of light [1,2]. In particular it is deployed in the measurement of gravitational waves, characterizing entanglement-based quantum key distribution systems, and other several other quantum information tasks [3][4][5][6] However, optical homodyne detection requires precise control of the relative phase between the signal and LO -i.e. the "homodyne angle" -that determines the detected quadrature.…”
Section: Introductionmentioning
confidence: 99%