Quantum computations

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  • (BQ) Part 2 book "Introduction to quantum computers" has contents: Unitary transformations and quantum dynamics, quantum dynamics at finite temperature, physical realization of quantum computations, linear chains of nuclear spins, experimental logic gates in quantum systems, error correction for quantum computers,...and other contents.

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  • (BQ) Part 1 book "Introduction to quantum computers" has contents: Introduction, the turing machine, binary system and boolean algebra, the quantum computer, the discrete fourier transform, quantum factorization of integers, logic gates, implementation of logic gates using transistors, reversible logic gates,...and other contents.

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  • This book was conceived as a result of many years research with students and postdocs in molecular simulation, and shaped over several courses on the subject given at the University of Groningen, the Eidgen¨ossische Technische Hochschule (ETH) in Z¨urich, the University of Cambridge, UK, the University of Rome (La Sapienza), and the University of North Carolina at Chapel Hill, NC, USA.

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  • Modelling and simulation are disciplines of major importance for science and engineering. There is no science without models, and simulation has nowadays become a very useful tool, sometimes unavoidable, for development of both science and engineering. The main attractive feature of cellular automata is that, in spite of their conceptual simplicity which allows an easiness of implementation for computer simulation, as a detailed and complete mathematical analysis in principle, they are able to exhibit a wide variety of amazingly complex behaviour....

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  • This book is a practical introduction to scientific computing and offers BPSIC subroutines, suitable for use on a perscnal complter, for solving a number of important problems in the areas of chmistry, biology and pharmacology. Althcugh our text is advanced in its category, we assume only that you have the normal mathmatical preparation associated with an undergraduate degree in science, and that you have some familiarity with the S I C programing language.

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  • This volume includes papers presented at the XXII Solvay Conference on Physics, which took place from the 24 to 29 November 2001 in the European Culture Centre of Delphi. The Castle of Lamia hosted the events of the last day. The Physics of Communication was the selected theme of the conference. The 5 sessions reflected present challenging issues, namely Decoherence and Irreversibility, Non-locality and Superluminosity, Photonics, Quantum Information and Communication, Quantum Computation.

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  • It is by now well established that quantum machines can solve certain computational problems much faster than the best algorithms known in the standard Turing machine model. The complexity question of which problems can be feasibly computed by quantum machines has also been extensively investigated in recent years, both in the context of one machine models (quantum polynomial classes) and various flavors of multi-machine models (single and multiple prover quantum interactive proofs).

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  • Automation is the use of control systems (such as numerical control, programmable logic control, and other industrial control systems), in concert with other applications of information technology (such as computer-aided technologies [CAD, CAM, CAx]), to control industrial machinery and processes, reducing the need for human intervention. In the scope of industrialization, automation is a step beyond mechanization.

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  • Anything you can do in classical physics, we can do better quantum physics. I head that remark in Boulder, Colorado, a few years ago when Dan Kleppners, a distinguished MT quantum physicist, was giving a lec-ture to a group of scientists on the subject of the quantum chaos.

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  • The extraordinary mechanical properties and unique electrical properties of carbon nanotubes (CNTs) have stimulated extensive research activities across the world since their discovery by Sumio Iijima of the NEC Corporation in the early 1990s. Although early research focused on growth and characterization, these interesting properties have led to an increase in the number of investigations focused on application development in the past 5 years.

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  • We consider a specialization of an untwisted quantum affine algebra of type ADE at a nonzero complex number, which may or may not be a root of unity. The Grothendieck ring of its finite dimensional representations has two bases, simple modules and standard modules. We identify entries of the transition matrix with special values of “computable” polynomials, similar to Kazhdan-Lusztig polynomials. At the same time we “compute” q-characters for all simple modules. The result is based on “computations” of Betti numbers of graded/cyclic quiver varieties.

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  • After a few early isolated cases in the 1980s, since the mid-1990s hundreds of papers dealing with economics and finance have invaded the physics preprint server xxx.lanl.gov/cond-mat, initially devoted to condensed matter physics, and now covering subjects as different as computer science, biology or probability theory.

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  • We have attempted to improve and update this text while retaining the features that make it unique, namely, an emphasis on physical understanding, and the ability to estimate, evaluate, and predict results without blind reliance on computers, while still maintaining rigorous connection to the mathematical basis for quantum chemistry. We have inserted intomost chapters examples that allowimportant points to be emphasized, clarified, or extended. This has enabled us to keep intact most of the conceptual development familiar to past users.

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  • Search algorithms aim to find solutions or objects with specified properties and constraints in a large solution search space or among a collection of objects. A solution can be a set of value assignments to variables that will satisfy the constraints or a sub-structure of a given discrete structure. In addition, there are search algorithms, mostly probabilistic, that are designed for the prospective quantum computer.

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  • In the experiments reviewed in this post only two electroencephalographic channels "C3 and C4 "were considered to capture the endogenous electroencephalographic signals from the subject. To create favorable conditions for the use of this technology is important to make it easy use, "cosmosis" or how the user's device look like wearing BCI is also important, this is the reason that the number of electrodes used in these devices is a key global features, such as using fewer electrodes, the higher the comfort (Wolpaw, 2007)....

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  • IT HAS BEEN SAID THAT SIR ISAAC NEWTON was the last person to know everything. He was an accomplished physicist (his three laws of motion were the basis of classical mechanics, which defi ned astrophysics for three centuries), mathematician (he was one of the inventors of calculus and developed Newton’s Method for fi nding roots of equations), astronomer, natural philosopher, and alchemist (okay, maybe the last one was a mistake). He invented the refl ecting telescope, a theory of color, and a law of cooling, and he studied the speed of sound.

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  • Robotics and computer vision are interdisciplinary subjects at the intersection of engineering and computer science. By their nature, they deal with both computers and the physical world. Although the former are in the latter, the workings of computers are best described in the black-and-white vocabulary of discrete mathematics, which is foreign to most classical models of reality, quantum physics notwithstanding. This class surveys some of the key tools of applied math to be used at the interface of continuous and discrete. It is not on robotics or computer vision.

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  • This book grew out of the notes of the course on quantum field theory that I give at the University of Geneva, for students in the fourth year. Most courses on quantum field theory focus on teaching the student how to compute cross-sections and decay rates in particle physics. This is, and will remain, an important part of the preparation of a high- energy physicist. However, the importance and the beauty of modern quantum field theory resides also in the great power and variety of its methods and ideas.

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  • La Magna and Deretzis Nanoscale Research Letters 2011, 6:234 http://www.nanoscalereslett.com/content/6/1/234 NANO EXPRESS Open Access Theoretical study of the role of metallic contacts in probing transport features of pure and defected graphene nanoribbons Antonino La Magna*, Ioannis Deretzis Abstract Understanding the roles of disorder and metal/graphene interface on the electronic and transport properties of graphene-based systems is crucial for a consistent analysis of the data deriving from experimental measurements.

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  • 202 Solar Cells – Dye-Sensitized Devices Nazeeruddin, M. K.; De Angelis, F.; Fantacci, S.; Selloni, A.; Viscardi, G.;Liska, P.; Ito, S.; Takeru, B., & Graetzel, M. (2005). Combined Experimental and DFT-TDDFT Computational Study of Photoelectrochemical Cell Ruthenium Sensitizers. J. Am. Chem. Soc, Vol. 127(48), pp. 16835-16847. Noack, V., Weller, H., & Eychmuller, A. (2002). J. Phys. Chem. B, Vol. 106, pp. 8514. Nogueira, A.F.; De Paoli, M.A.; Montanan, I.; Monkhouse, R. & Durrant, I. (2001). J. Phys. Chem. B, Vol. 105, pp. 7417. Nozik, A.J. (2001). Quantum Dot Solar Cells. Annu. Rev.

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