Results 191 to 200 of about 3,448,310 (245)

Physical computation

Concurrency: Practice and Experience, 1991
AbstractPhysical computation embraces a variety of physical analogies used to tackle non‐traditional problems. We describe Monte Carlo and deterministic methods, including simulated annealing and neural networks. Applications include economic change in Eastern Europe, the travelling salesman problem, vehicle navigation, track finding, and parallel ...
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Computational physics with PetaFlops computers

Computer Physics Communications, 2009
Abstract Driven by technology, Scientific Computing is rapidly entering the PetaFlops era. The Julich Supercomputing Centre (JSC), one of three German national supercomputing centres, is focusing on the IBM Blue Gene architecture to provide computer resources of this class to its users, the majority of whom are computational physicists.
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The Physics of Quantum Computation

International Journal of Quantum Information, 2014
Quantum computation has emerged in the past decades as a consequence of down-scaling of electronic devices to the mesoscopic regime and of advances in the ability of controlling and measuring microscopic quantum systems. Quantum computation has many interdisciplinary aspects, ranging from physics and chemistry to mathematics and computer science.
FALCI, Giuseppe, PALADINO, ELISABETTA
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Computational physics: a perspective

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2002
Computing comprises three distinct strands: hardware, software and the ways they are used in real or imagined worlds. Its use in research is more than writing or running code. Having something significant to compute and deploying judgement in what is attempted and achieved are especially challenging. In science or engineering, one must define a central
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Computations in fusion Physics

Applied Mathematics and Computation, 1986
The modern approach to nuclear fusion uses inertial confinement by a high-power laser beam, and the computer codes used to simulate the plasma behaviour now contain a lot of physics. Nonlinear interaction of a laser with a turbulent plasma is a major topic of experimental and numerical study. Simulation can be on either the particle or the hydrodynamic
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Simulating physics with computers

International Journal of Theoretical Physics, 1982
This chapter describes the possibility of simulating physics in the classical approximation, a thing which is usually described by local differential equations. But the physical world is quantum mechanical, and therefore the proper problem is the simulation of quantum physics. A computer which will give the same probabilities as the quantum system does.
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The physical basis of computability

Computing in Science & Engineering, 2002
Simulations work in practice because they exploit higher-level organizing principles in nature. Good code writing requires faithfulness to these principles and the discipline not to exceed their limits of validity. An important exception is the use of simulation to search for new kinds of emergence.
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A computing architecture for physics

Proceedings of the 2nd conference on Computing frontiers, 2005
In this paper, we show how a computing architecture, called "Salt", might be able to implement the workings of a particular Discrete Space-Time-State model of Physics (DSTSP). While what is presented is certainly not a correct model of fundamental processes in physics, it illustrates how such models could give us insights into new methods of modeling ...
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Computability in Analysis and Physics

1989
Since their inception, the Perspectives in Logic and Lecture Notes in Logic series have published seminal works by leading logicians. Many of the original books in the series have been unavailable for years, but they are now in print once again. In this volume, the first publication in the Perspectives in Logic series, Pour-El and Richards present the ...
Marian Boykan Pour-El, Jonathan Ian Richards   +1 more
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Computational mineral physics and the physical properties of perovskite

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2002
The inherent uncertainties in modern first-principles calculations are reviewed using geophysically relevant examples. The elastic constants of perovskite at lower-mantle temperatures and pressures are calculated using ab initio molecular dynamics. These are used in conjunction with seismic tomographic models to estimate that the lateral temperature ...
John P, Brodholt, A R, Oganov, G D, Price   +2 more
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