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QUANTUM HOLONOMIES FOR QUANTUM COMPUTING [PDF]

open access: yesInternational Journal of Modern Physics B, 2001
Holonomic Quantum Computation (HQC) is an all-geometrical approach to quantum information processing. In the HQC strategy information is encoded in degenerate eigen-spaces of a parametric family of Hamiltonians. The computational network of unitary quantum gates is realized by driving adiabatically the Hamiltonian parameters along loops in a control ...
Pachos, Jiannis, Zanardi, Paolo
openaire   +5 more sources

Optical Quantum Computing [PDF]

open access: yesScience, 2007
In 2001, all-optical quantum computing became feasible with the discovery that scalable quantum computing is possible using only single-photon sources, linear optical elements, and single-photon detectors. Although it was in principle scalable, the massive resource overhead made the scheme practically daunting.
Aoki   +21 more
openaire   +5 more sources

Ergodic Quantum Computing [PDF]

open access: yesQuantum Information Processing, 2005
We propose a (theoretical ;-) model for quantum computation where the result can be read out from the time average of the Hamiltonian dynamics of a 2-dimensional crystal on a cylinder. The Hamiltonian is a spatially local interaction among Wigner-Seitz cells containing 6 qubits.
Janzing, Dominik, Wocjan, Pawel
openaire   +5 more sources

Quantum computing [PDF]

open access: yesAmerican 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 ...
G, Brassard   +3 more
  +11 more sources

Quantum computers [PDF]

open access: yesNature, 2010
Over the past several decades, quantum information science has emerged to seek answers to the question: can we gain some advantage by storing, transmitting and processing information encoded in systems that exhibit unique quantum properties? Today it is understood that the answer is yes, and many research groups around the world are working towards the
Ladd, TD   +5 more
openaire   +3 more sources

Quantum computing [PDF]

open access: yesProceedings of the National Academy of Sciences, 2001
Quantum computing is a quickly growing research field. This article introduces the basic concepts of quantum computing, recent developments in quantum searching, and decoherence in a possible quantum dot realization.
S S, Li   +4 more
openaire   +2 more sources

Quantum Computation

open access: yes17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996
Quantum theory is vital for the next generation data processing devices. As computers become faster they must become smaller because of the finiteness of the speed of light. The history of computer technology has involved a sequence of changes from one type of physical realisation to another - from gears to relays to valves to transistors to integrated
Barenco, A   +3 more
openaire   +5 more sources

Quantum computational supremacy [PDF]

open access: yesNature, 2017
review article originally appearing in a Nature Insight collection on "Quantum Software".
Harrow, Aram, Montanaro, Ashley
openaire   +6 more sources

Quantum analogue computing [PDF]

open access: yesPhilosophical 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 the quantum simulation of quantum systems. While most quantum computation is an extension of classical digital computation, quantum simulation differs fundamentally in how the data are
Kendon, Vivien M.   +2 more
openaire   +4 more sources

QUANTUM COMPUTING

open access: yesJournal of Engineering Science, 2021
The quantum computer, is a "supercomputer" that relies on the phenomena of quantum mechanics to perform operations on data. Object of suppositions, sometimes farfetched, quantum mechanics gave birth to the quantum computer, a machine capable of processing data tens of millions of times faster than a conventional computer. A quantum computer doesn't use
openaire   +3 more sources

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