Results 31 to 40 of about 2,092,913 (379)
Decomposition of quantum gates [PDF]
International Journal of Quantum Information, 2014 A recurrence scheme is presented to decompose an n-qubit unitary gate to the product of no more than N(N - 1)/2 single qubit gates with small number of controls, where N = 2n. Detailed description of the recurrence steps and formulas for the number of k-controlled single qubit gates in the decomposition are given.
Diane Christine Pelejo, Chi-Kwong Li
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Deep reinforcement learning for quantum gate control [PDF]
Europhysics letters, 2019 How to implement multi-qubit gates efficiently with high precision is essential for realizing universal fault-tolerant computing. For a physical system with some external controllable parameters, it is a great challenge to control the time dependence of ...
Zheng An, D. Zhou
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Deterministic teleportation of a quantum gate between two logical qubits [PDF]
Nature, 2018 A quantum computer has the potential to efficiently solve problems that are intractable for classical computers. However, constructing a large-scale quantum processor is challenging because of the errors and noise that are inherent in real-world quantum ...
K. Chou +10 more
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, 2002 In this paper we study universality for quantum gates acting on qudits.Qudits are states in a Hilbert space of dimension d where d is at least two. We determine which 2-qudit gates V have the properties (i) the collection of all 1-qudit gates together with V produces all n-qudit gates up to arbitrary precision, or (ii) the collection of all 1-qudit ...
Ranee Brylinski, Jean-Luc Brylinski
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IET Optoelectronics, 2021 Quantum logic gate operates on a number of qubits, where a controlled Z gate operates on two qubit data. Similarly, the square root of controlled Z (SRCZ) operates also on two qubit data.
Minakshi Mandal, Sourangshu Mukhopadhyay
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Topological quantum gates with quantum dots [PDF]
Journal of Optics B: Quantum and Semiclassical Optics, 2003 8 pages, 3 figures, submitted to Jour. of Opt. B (special issue on Quantum Computing)
Pachos, J, Vedral, V
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Poor man's topological quantum gate based on the Su-Schrieffer-Heeger model [PDF]
Physical review B, 2019 Topological properties of quantum systems could provide protection of information against environmental noise, and thereby drastically advance their potential in quantum information processing. Most proposals for topologically protected quantum gates are
P. Boross +4 more
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Quantum Teleportation of Optical Quantum Gates [PDF]
Physical Review Letters, 2003 We show that a universal set of gates for quantum computation with optics can be quantum teleported through the use of EPR entangled states, homodyne detection, and linear optics and squeezing operations conditioned on measurement outcomes. This scheme may be used for fault-tolerant quantum computation in any optical scheme (qubit or continuous ...
William J. Munro, Stephen D. Bartlett
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Toward Quantum Gate-Model Heuristics for Real-World Planning Problems
IEEE Transactions on Quantum Engineering, 2020 Many challenging scheduling, planning, and resource allocation problems come with real-world input data and hard problem constraints, and reduce to optimizing a cost function over a combinatorially defined feasible set, such as colorings of a graph ...
T. Stollenwerk +2 more
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The bitter truth about gate-based quantum algorithms in the NISQ era [PDF]
Quantum Science and Technology, 2020 Implementing a gate-based quantum algorithm on an noisy intermediate scale quantum (NISQ) device has several challenges that arise from the fact that such devices are noisy and have limited quantum resources.
F. Leymann, Johanna Barzen
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