搜索结果: 46-60 共查到“物理学 Simulation”相关记录107条 . 查询时间(0.18 秒)
Inverse Ontomimetic Simulation: a window on complex systems
Simulation complex systems epistemology
2011/9/8
The present paper introduces "ontomimetic simulation" and argues that this class of models has enabled the investigation of hypotheses about complex systems in new ways that have epistemological relev...
Dynamical simulation of integrable and non-integrable models in the Heisenberg picture
Dynamical simulation non-integrable models Heisenberg picture
2010/10/21
The numerical simulation of quantum many-body dynamics is typically limited by the linear growth of entanglement with time requiring exponentially increasing computational ressources to reach a given ...
Simulation of gauge transformations on systems of ultracold atoms
Simulation gauge transformations systems ultracold atoms
2010/10/21
We show that gauge transformations can be simulated on systems of ultracold atoms. We discuss observables that are invariant under these gauge transformations and compute them using a tensor network a...
A cryogenic surface-electrode elliptical ion trap for quantum simulation
cryogenic surface-electrode elliptical ion trap quantum simulation
2010/10/18
Two-dimensional crystals of trapped ions are a promising system with which to implement quantum
simulations of challenging problems such as spin frustration. Here, we present a design for a
surface-...
Ion-trap simulation of the quantum phase transition in an exactly solvable model of spins coupled to bosons
phase transition bosons Ion-trap simulation
2010/3/10
It is known that arrays of trapped ions can be used to efficiently simulate a variety of many-body quantum systems. Here, we show how it is possible to build a model representing a spin chain interact...
The Anti-Proton ANnihilation at DArmstadt (PANDA) experiment proposed at the Facility for Antiproton and Ion Research (FAIR) in Darmstadt (Germany) will perform a high precision spectroscopy of charmo...
Particle induced X-ray emission (PIXE) is a physical effect that is not yet adequately modelled in Geant4. The current status as in Geant4 9.2 release is reviewed and new developments are described. T...
Consistency properties of a simulation-based estimator for dynamic processes
Consistency properties simulation-based estimator dynamic processes
2010/4/27
This paper considers a simulation-based estimator for a general class of Markovian processes and explores some strong consistency properties of the estimator. The estimation problem is defined over a ...
Simulation de trajectoires de processus continus
Simulation Time discrete approximation Euler and Milstein Schemes Indirect inference estimation mixed torus random number generator
2010/4/27
Continuous time stochastic processes are useful models especially for financial and insurance purposes. The numerical simulation of such models is dependant of the time discrete discretization, of the...
Simulation of large photomultipliers for experiments in astroparticle physics
photomultiplier tube photocathode Fresnel equations thin-film complex index of refraction simulation
2010/3/15
We have developed an accurate simulation model of the large 9 inch photomultiplier tubes (PMT) used in water-Cherenkov detectors of cosmic-ray induced extensive air-showers. This work was carried out ...
Lie algebraic analysis and simulation of high-current pulsed beam transport in a solenoidal lens
solenoidal lens Lie algebraic space charge effect nonlinearity
2009/12/24
Recent calculations of the transport of a high-current beam in a solenoidal lens have made progress to the second order with the Lie algebraic method. A review of the theory and our simulation to rea...
Preliminary simulation studies on a cylindrical PEM scanner using GATE
simulation GATE cylindrical PEM evaluation
2009/12/24
In this paper, we investigate the performance of a cylindrical positron emission mammography (PEM) by simulation, in order to estimate its feasibility before implementation. A well-developed simulatio...
3D reconnection due to oblique modes:a simulation of Harris current sheets
3D reconnection oblique modes Harris current sheets
2009/11/13
Simulations in three dimensions of a Harris current sheet with mass ratio, mi/me = 180, and current sheet thickness, pi/L = 0.5, suggest the existence of a linearly unstable oblique mode, which is ind...
Monte Carlo simulation of the property of a scintillation bar in the multi-neutron correlation spectrometer
neutron wall Monte Carlo simulation neutron halo
2009/9/17
To perform a kinematically complete measurement of the dissociation reaction for neutron-rich nuclei, a multi-neutron correlation spectrometer is proposed at Peking University. A Monte Carlo simulatio...
Study of neutron response for two hybrid RPC setups using the GEANT4 MC simulation approach
resistive plate chambers neutron sensitivity GEANT4 Monte Carlo simulation
2009/9/17
The present article describes a detailed neutron simulation study in the energy range 10－10 MeV to 1.0 GeV for two different RPC configurations. The simulation studies were taken by using the GEANT4 ...