Results 11 to 20 of about 475,169 (310)
Quantum gates and circuits [PDF]
Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 1998 A historical review is given of the emergence of the idea of the quantum logic gate from the theory of reversible Boolean gates. I highlight the quantum XOR or controlled NOT as the fundamental two-bit gate for quantum computation. This gate plays a central role in networks for quantum error correction.
David P. DiVincenzo
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Soliton confinement in a quantum circuit. [PDF]
Nat Commun, 2023 AbstractConfinement of topological excitations into particle-like states - typically associated with theories of elementary particles - are known to occur in condensed matter systems, arising as domain-wall confinement in quantum spin chains. However, investigation of confinement in the condensed matter setting has rarely ventured beyond lattice spin ...
Roy A, Lukyanov SL.
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Spacetime as a quantum circuit [PDF]
Journal of High Energy Physics, 2021 Abstract We propose that finite cutoff regions of holographic spacetimes represent quantum circuits that map between boundary states at different times and Wilsonian cutoffs, and that the complexity of those quantum circuits is given by the gravitational action. The optimal circuit minimizes the gravitational action.
Sergio Hörtner +6 more
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A dataset for quantum circuit mapping. [PDF]
Data Brief, 2021 Quantum computing is rapidly establishing itself as a new computing paradigm capable of obtaining advantages over its classical counterpart. However, a major limitation in the design of a quantum algorithm is related to the proper mapping of the corresponding circuit to a specific quantum processor so that the underlying physical constraints are ...
Acampora G, Schiattarella R, Troiano A.
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Quantum, 2021 We argue that the quantum-theoretical structures studied in several recent lines of research cannot be adequately described within the standard framework of quantum circuits. This is in particular the case whenever the combination of subsystems is described by a nontrivial blend of direct sums and tensor products of Hilbert spaces. We therefore propose
Hlér Kristjánsson +3 more
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Circuit quantum electrodynamics [PDF]
Reviews of Modern Physics, 2021 Quantum mechanical effects at the macroscopic level were first explored in Josephson junction-based superconducting circuits in the 1980's. In the last twenty years, the emergence of quantum information science has intensified research toward using these circuits as qubits in quantum information processors.
Alexandre Blais +3 more
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NONUNITARY QUANTUM CIRCUIT [PDF]
International Journal of Quantum Information, 2005 A quantum circuit is generalized to a nonunitary one whose constituents are nonunitary gates operated by quantum measurement. It is shown that a specific type of one-qubit nonunitary gates, the controlled-NOT gate, and all one-qubit unitary gates constitute a universal set of gates for the nonunitary quantum circuit, without the necessity of ...
Hiroaki Terashima, Masahito Ueda
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Synthesis of quantum logic circuits [PDF]
Proceedings of the ASP-DAC 2005. Asia and South Pacific Design Automation Conference, 2005., 2005 18 pages; v5 fixes minor bugs; v4 is a complete rewrite of v3, with 6x more content, a theory of quantum multiplexors and Quantum Shannon Decomposition.
Vivek Shende +2 more
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Pauli Error Propagation-Based Gate Rescheduling for Quantum Circuit Error Mitigation
IEEE Transactions on Quantum Engineering, 2022 Noisy intermediate-scale quantum algorithms, which run on noisy quantum computers, should be carefully designed to boost the output state fidelity. While several compilation approaches have been proposed to minimize circuit errors, they often omit the ...
Vedika Saravanan, Samah M. Saeed
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Proceedings of the 54th Annual ACM SIGACT Symposium on Theory of Computing, 2022 66 pages. Updated the erroneous claim from v1 about the complexity of information-theoretic QRE as matching the classical case.
Brakerski, Zvika, Yuen, Henry
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