Quantum Computing: Survey and Analysis
Sign Up to like & getrecommendations! Published in 2019 at "Cybernetics and Systems Analysis"
DOI: 10.1007/s10559-019-00107-w
Abstract: The authors survey and analyze the main concepts and postulates of the quantum computing model, efficient quantum algorithms, and recent results, capabilities, and prospects in constructing a scalable quantum computer. A certain class of algebraic… read more here.
Keywords: quantum computing; analysis quantum; quantum computer; quantum ... See more keywords
An Extended Row and Column Method for Solving Linear Systems on a Quantum Computer
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-020-04685-w
Abstract: To solve the linear systems of equations Ax = b on a quantum computer, Shao and Xiang proposed a quantum version of row and column methods by establishing unitary operators in each iteration step based… read more here.
Keywords: column method; linear systems; row column; quantum computer ... See more keywords
An FPGA-based real quantum computer emulator
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Computational Electronics"
DOI: 10.1007/s10825-018-1287-5
Abstract: While we cannot efficiently emulate quantum algorithms on classical architectures, we can move the weight of complexity from time to hardware resources. This paper describes a proposition of a universal and scalable quantum computer emulator,… read more here.
Keywords: computer emulator; quantum; quantum computer; real quantum ... See more keywords
Quantum computer based on shuttling trapped ions.
Sign Up to like & getrecommendations! Published in 2021 at "Nature"
DOI: 10.1038/d41586-021-00844-z
Abstract: ions has already proved itself to be a leading hardware platform for quantum information processing. Indeed, trapped ions have been used to realize quantum gates — the basic building blocks of a quantum computer —… read more here.
Keywords: based shuttling; quantum; quantum computer; computer based ... See more keywords
Benchmarking an 11-qubit quantum computer
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-019-13534-2
Abstract: The field of quantum computing has grown from concept to demonstration devices over the past 20 years. Universal quantum computing offers efficiency in approaching problems of scientific and commercial interest, such as factoring large numbers,… read more here.
Keywords: quantum; quantum computer; quantum computing; benchmarking qubit ... See more keywords
Calculating energy derivatives for quantum chemistry on a quantum computer
Sign Up to like & getrecommendations! Published in 2019 at "npj Quantum Information"
DOI: 10.1038/s41534-019-0213-4
Abstract: Modeling chemical reactions and complicated molecular systems has been proposed as the “killer application” of a future quantum computer. Accurate calculations of derivatives of molecular eigenenergies are essential toward this end, allowing for geometry optimization,… read more here.
Keywords: quantum; quantum computer; chemistry; geometry ... See more keywords
Unfolding quantum computer readout noise
Sign Up to like & getrecommendations! Published in 2019 at "npj Quantum Information"
DOI: 10.1038/s41534-020-00309-7
Abstract: In the current era of noisy intermediate-scale quantum computers, noisy qubits can result in biased results for early quantum algorithm applications. This is a significant challenge for interpreting results from quantum computer simulations for quantum… read more here.
Keywords: quantum computer; matrix inversion; physics; readout errors ... See more keywords
Ground-state energy estimation of the water molecule on a trapped-ion quantum computer
Sign Up to like & getrecommendations! Published in 2019 at "npj Quantum Information"
DOI: 10.1038/s41534-020-0259-3
Abstract: Quantum computing leverages the quantum resources of superposition and entanglement to efficiently solve computational problems considered intractable for classical computers. Examples include calculating molecular and nuclear structure, simulating strongly interacting electron systems, and modeling aspects… read more here.
Keywords: quantum computer; quantum; trapped ion; ion quantum ... See more keywords
Construction of Green's functions on a quantum computer: Quasiparticle spectra of molecules
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.101.012330
Abstract: We propose a scheme for the construction of the one-particle Green's function (GF) of an interacting electronic system via statistical sampling on a quantum computer. Although the nonunitarity of creation and annihilation operators for the… read more here.
Keywords: construction green; construction; quantum computer; green functions ... See more keywords
Simulation of wave-particle duality in multipath interferometers on a quantum computer
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DOI: 10.1103/physreva.102.032605
Abstract: We present an architecture to investigate wave-particle duality in $N$-path interferometers on a universal quantum computer involving as low as $2{log}_{2}N$ qubits and develop a measurement scheme that allows the efficient extraction of quantifiers of… read more here.
Keywords: quantum computer; wave particle; particle duality;
Preparation of excited states for nuclear dynamics on a quantum computer
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DOI: 10.1103/physrevc.102.064624
Abstract: We study two different methods to prepare excited states on a quantum computer, a key initial step to study dynamics within linear response theory. The first method uses unitary evolution for a short time $T=\mathcal{O}(\sqrt{1-F})$… read more here.
Keywords: quantum computer; states nuclear; preparation excited; excited states ... See more keywords