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Journal of Engineering Science (Chişinău), 2021 The quantum computer, is a "supercomputer" that relies on the phenomena of quantum mechanics to perform operations on data. Object of suppositions, sometimes far- fetched, quantum mechanics gave birth to the quantum computer, a machine capable of ...
BĂJENESCU, Titu-Marius I.
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Quantum Analogue Computing [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010 We briefly review what a quantum computer is, what it promises to do for us, and why it is so hard to build one. Among the first applications anticipated to bear fruit is quantum simulation of quantum systems.
Deutsch D. +7 more
core +7 more sources
A Simple Quantum Computer [PDF]
Physical Review A, 1995 We propose an implementation of a quantum computer to solve Deutsch's problem, which requires exponential time on a classical computer but only linear time with quantum parallelism.
A. Imamoglu +25 more
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American Journal of Physics, 1998 The main features of quantum computing are described in the framework of spin resonance methods. Stress is put on the fact that quantum computing is itself nothing but a reinterpretation (fruitful indeed) of well-known concepts. The role of the two basic operations, one-spin rotation and controlled-NOT gates, is analyzed, and some exercises are ...
Gilles Brassard +3 more
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Topological order from measurements and feed-forward on a trapped ion quantum computer [PDF]
Communications Physics, 2023 Quantum systems evolve in time in one of two ways: through the Schrödinger equation or wavefunction collapse. So far, deterministic control of quantum many-body systems in the lab has focused on the former, due to the probabilistic nature of measurements.
Mohsin Iqbal +15 more
semanticscholar +1 more source
Benchmarking a trapped-ion quantum computer with 30 qubits [PDF]
Quantum, 2023 Quantum computers are rapidly becoming more capable, with dramatic increases in both qubit count \cite{kim2023evidence} and quality \cite{moses2023race}.
Jwo-Sy Chen +10 more
semanticscholar +1 more source
Realization of quantum signal processing on a noisy quantum computer [PDF]
npj Quantum Information, 2023 Quantum signal processing (QSP) is a powerful toolbox for the design of quantum algorithms and can lead to asymptotically optimal computational costs. Its realization on noisy quantum computers without fault tolerance, however, is challenging because it ...
Y. Kikuchi +4 more
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Exact and efficient Lanczos method on a quantum computer [PDF]
Quantum, 2022 We present an algorithm that uses block encoding on a quantum computer to exactly construct a Krylov space, which can be used as the basis for the Lanczos method to estimate extremal eigenvalues of Hamiltonians.
William M. Kirby +2 more
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Measurement-induced quantum phases realized in a trapped-ion quantum computer [PDF]
Nature Physics, 2021 Many-body open quantum systems balance internal dynamics against decoherence and measurements induced by interactions with an environment1,2. Quantum circuits composed of random unitary gates with interspersed projective measurements represent a minimal ...
C. Noel +10 more
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Quantum computing for quantum tunneling [PDF]
Physical Review D, 2021 We demonstrate how quantum field theory problems can be embedded on quantum annealers. The general method we use is a discretisation of the field theory problem into a general Ising model, with the continuous field values being encoded into Ising spin chains.
Steven Abel +2 more
openaire +4 more sources