Results 51 to 60 of about 248,456 (339)
An Overview of Algorithms for Solving Vehicle Routing Problems in the Quantum-Classical Cloud
Кібернетика та комп'ютерні технології, 2023 Introduction. The hope of solving the problem of the avalanche-like growth of requirements for computing power, essential for solving complex routing problems and other problems of combinatorial optimization, relies on the latest quantum computers, in ...
Leonid Hulianitskyi +2 more
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Quantum state estimation when qubits are lost: a no-data-left-behind approach
New Journal of Physics, 2017 We present an approach to Bayesian mean estimation of quantum states using hyperspherical parametrization and an experiment-specific likelihood which allows utilization of all available data, even when qubits are lost.
Brian P Williams, Pavel Lougovski
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Phonon-induced decoherence of a charge quadrupole qubit
New Journal of Physics, 2018 Many quantum dot qubits operate in regimes where the energy splittings between qubit states are large and phonons can be the dominant source of decoherence.
Viktoriia Kornich +3 more
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Radial oscillations of an electron in a Coulomb attracting field
Open Physics, 2022 The radial motion of an electron in a Coulomb attracting field based on a new theory of the interaction of a particle with an electromagnetic field is studied.
Karapetyan Grigori G.
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Physics Letters B, 2010 We show that qubit and chirotope concepts are closely related. In fact, we prove that the qubit concept leads to a generalization of the chirotope concept, which we call qubitope. Moreover, we argue that a possible qubitope theory may suggest interesting applications of oriented matroid theory in at least three physical contexts, in which qubits make ...
J.A. Nieto, J.A. Nieto, J.A. Nieto
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Optimal control for fast and high-fidelity quantum gates in coupled superconducting flux qubits [PDF]
Phys. Rev. A 90, 012318 (2014), 2014 We apply the quantum optimal control theory based on the Krotov method to implement single-qubit $X$ and $Z$ gates and two-qubit CNOT gates for inductively coupled superconducting flux qubits with fixed qubit transition frequencies and fixed off-diagonal qubit-qubit coupling.
arxiv +1 more source
Cat-qubit-inspired gate on cos($2θ$) qubits [PDF]
arXiv, 2023 For $\cos(2\theta)$ qubits based on voltage-controlled semiconductor nanowire Josephson junctions we introduce a single-qubit $Z$ gate inspired by the noise-bias preserving gate of the Kerr-cat qubit. This scheme relies on a $\pi$ rotation in phase space via a beamsplitter-like transformation between a qubit and ancilla qubit.
arxiv
Multiparticle entanglement with quantum logic networks: Application to cold trapped ions [PDF]
, 2001 We show how to construct a multi-qubit control gate on a quantum register of an arbitrary size N. This gate performs a single-qubit operation on a specific qubit conditioned by the state of other N-1 qubits.
A. Barenco +26 more
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Cybernetics and Information Technologies, 2020 The aim of the research is computer simulation of a quantum algorithm to solve the problem of transforming a classical image using quantum computing tools and methods, studying recognition algorithms and creating a recognition model using quantum methods.
Gushanskiy Sergey +2 more
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Research Paper: Investigation of the Relationship of the Degree of Mixedness and Entanglement of the Bipartite Spin Coherent States [PDF]
فیزیک کاربردی ایران, 2021 In this work, superposition of spin coherent states composed of two qubits is formed and by calculating the geometric measure of mixing of the system introduced in this work, the degree of mixedness of the studied state is investigated. In the following,
Mehrzad Ashrafpour, Zahra Saghi
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