Results 1 to 10 of about 225,791 (326)
Quantum-circuit refrigerator [PDF]
Nature Communications, 2017 Efficient on-demand cooling of the functional degrees of freedom in solid-state implementations of quantum information processing devices remains a challenge.
Kuan Yen Tan +5 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
core +11 more sources
Superconducting quantum circuit of NOR in quantum annealing [PDF]
Scientific Reports, 2022 The applicability of quantum annealing to various problems can be improved by expressing the Hamiltonian using a circuit satisfiability problem. We investigate the detailed characteristics of the NOR/NAND functions of a superconducting quantum circuit ...
Daisuke Saida +4 more
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Visualizing Quantum Circuit Probability: Estimating Quantum State Complexity for Quantum Program Synthesis [PDF]
Entropy, 2023 This work applies concepts from algorithmic probability to Boolean and quantum combinatorial logic circuits. The relations among the statistical, algorithmic, computational, and circuit complexities of states are reviewed.
Bao Gia Bach +3 more
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Quantum circuit unoptimization
Physical Review ResearchOptimization of circuits is an essential task for both quantum and classical computers to improve their efficiency. In contrast, classical logic optimization is known to be difficult, and a lot of heuristic approaches have been developed so far.
Yusei Mori +5 more
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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
openalex +5 more sources
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.
europepmc +5 more sources
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
openaire +9 more sources
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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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.
europepmc +6 more sources