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Approaching the theoretical limit in quantum gate decomposition [PDF]
Quantum, 2022 In this work we propose a novel numerical approach to decompose general quantum programs in terms of single- and two-qubit quantum gates with a $CNOT$ gate count very close to the current theoretical lower bounds.
Péter Rakyta, Zoltán Zimborás
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Quantum compiling with a variational instruction set for accurate and fast quantum computing
Physical Review Research, 2023 The quantum instruction set (QIS) is defined as the quantum gates that are physically realizable by controlling the qubits in quantum hardware. Compiling quantum circuits into the product of the gates in a properly defined QIS is a fundamental step in ...
Ying Lu +3 more
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Unsupervised Quantum Gate Control for Gate-Model Quantum Computers [PDF]
Scientific Reports, 2020 AbstractIn 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.
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Experimental Realization of Nonadiabatic Holonomic Single-Qubit Quantum Gates with Optimal Control in a Trapped Ion [PDF]
Physical Review Applied, 2020 Quantum computation with quantum gates induced by geometric phases is regarded as a promising strategy in fault tolerant quantum computation, due to its robustness against operational noises.
Ming-Zhong Ai +9 more
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Digital Quantum Simulation of Nonadiabatic Geometric Gates via Shortcuts to Adiabaticity
Entropy, 2020 Geometric phases are used to construct quantum gates since it naturally resists local noises, acting as the modularized units of geometric quantum computing.
Yapeng Wang +3 more
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Reducing CNOT count in quantum Fourier transform for the linear nearest-neighbor architecture
Scientific Reports, 2023 Physical limitations of quantum hardware often necessitate nearest-neighbor (NN) architecture. When synthesizing quantum circuits using the basic gate library, which consists of CNOT and single-qubit gates, CNOT gates are required to convert a quantum ...
Byeongyong Park, Doyeol Ahn
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New Journal of Physics, 2023 We propose an effective protocol for the implementation of nonadiabatic geometric quantum gates of cat-state qubits in Kerr-nonlinear resonators driven by two-photon squeezing drives.
Yi-Hao Kang +6 more
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Experimental demonstration of efficient high-dimensional quantum gates with orbital angular momentum [PDF]
Quantum Science and Technology, 2020 Quantum gates are essential for the realization of quantum computer and have been implemented in various types of two-level systems. However, high-dimensional quantum gates are rarely investigated both theoretically and experimentally even that high ...
Yunlong Wang +4 more
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Quantum walks, quantum gates, and quantum computers [PDF]
Physical Review A, 2007 The physics of quantum walks on graphs is formulated in Hamiltonian language, both for simple quantum walks and for composite walks, where extra discrete degrees of freedom live at each node of the graph. It is shown how to map between quantum walk Hamiltonians and Hamiltonians for qubit systems and quantum circuits; this is done for both a single- and
Hines, Andrew P., Stamp, P. C. E.
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Quantum Computing in the NISQ era and beyond [PDF]
Quantum, 2018 Noisy Intermediate-Scale Quantum (NISQ) technology will be available in the near future. Quantum computers with 50-100 qubits may be able to perform tasks which surpass the capabilities of today's classical digital computers, but noise in quantum gates ...
J. Preskill
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