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phase-space

Collisional semiclassical approximations in phase-space representation

Collisional semiclassical approximations in phase-space representation

... Nowadays, the advantages and difficulties for using the phase-space formulation of quantum mechanics are well known @1–3#. This formulation remains still very useful for studying the classical limit of ...

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REPOSITORIO INSTITUCIONAL DA UFOP: Weak Values and the quantum phase space.

REPOSITORIO INSTITUCIONAL DA UFOP: Weak Values and the quantum phase space.

... We address the issue of how to properly treat, and in a more general setting, the concept of a weak value of a weak measurement in quantum mechanics. We show that for this purpose, one must take in account the effects of ...

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A New Nonrelativistic Investigation for Spectra of Heavy Quarkonia with Modified Cornell Potential: Noncommutative Three Dimensional Space and Phase Space Solutions

A New Nonrelativistic Investigation for Spectra of Heavy Quarkonia with Modified Cornell Potential: Noncommutative Three Dimensional Space and Phase Space Solutions

... Here Hˆ denote to the ordinary quantum Hamilto- nian operator. Recently, much considerable effort has been expanded on the solutions of Schrödinger, Dirac and Klein-Gordon equations to noncommutative quan- tum mechanics, ...

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Braz. J. Phys.  vol.35 número4B

Braz. J. Phys. vol.35 número4B

... An analysis of the solutions for the field equations of generalized scalar-tensor theories of gravitation is performed through the study of the geometry of the phase space and the stability of the ...

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Current-voltage relationship in the auroral particle acceleration region

Current-voltage relationship in the auroral particle acceleration region

... The purpose of this study is to examine the current-voltage relationship in the acceleration region statistically, using data obtained by Akebono, and discuss the results in terms of charge carriers of the upward ...

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Exploring Replica-Exchange Wang-Landau sampling in higher-dimensional parameter space

Exploring Replica-Exchange Wang-Landau sampling in higher-dimensional parameter space

... The REWL method [8] is arguably the most successful parallelization attempt to the WL method so far, and it consists of only three simple modifications to the serial version of the algorithm. Taking the Ising model as an ...

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Monte-Carlo Modelling For Evaluation Of Two Different Calculation Algorithms

Monte-Carlo Modelling For Evaluation Of Two Different Calculation Algorithms

... filter, ion chamber, secondary jaws and phase-space was scored below the jaws. Once the basic model was developed than the different combinations of kinetic energy of incident electrons (MeV) and Full Width ...

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Multifractality and intermittency in the solar wind

Multifractality and intermittency in the solar wind

... Thus our results provide direct supporting evidence that the complex solar wind is likely to have multifractal struc- ture. In this way, we have further supported our previous conjecture that trajectories describing the ...

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feedback between population and evolutionary dynamics determines the fate of social microbial populations.

feedback between population and evolutionary dynamics determines the fate of social microbial populations.

... eco-evolutionary phase space that is remarkably similar to our experimental measurements, with a separatrix dividing the phase space into two regions (Figure ...

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On the Nonequilibrium Statistical Operator and Classical Thermo eld Dynamics

On the Nonequilibrium Statistical Operator and Classical Thermo eld Dynamics

... A nonequilibrium statistical operator (NSO) is built for classical sistems using a eld theory in classical phase space, which is but a classical version of the thermo eld dynamics formal- ism. The approach ...

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Consequences of quadratic frictional force on the one dimensional bouncing ball model

Consequences of quadratic frictional force on the one dimensional bouncing ball model

... We confirm that the model experiences contraction of the phase space area and in special, we characterized the behavior of the particle approaching an attracting fixed point.. INTRODUC[r] ...

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Blocking Radial Diffusion in a Double-Waved Hamiltonian Model

Blocking Radial Diffusion in a Double-Waved Hamiltonian Model

... the phase space, ...the phase space and they show the mixing radial transport done by the ...the phase space along the axis ...

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Braz. J. Phys.  vol.35 número4B

Braz. J. Phys. vol.35 número4B

... the border of the main islands, we note the large region of phase space corresponding to a long time diffusion (before the orbits escape to inflation). The stochastic sea beyond the fuzzy border of the main ...

2

Braz. J. Phys.  vol.38 número1

Braz. J. Phys. vol.38 número1

... the phase space while it is compared to the non dissipative ver- sion of the ...the phase space shows a chaotic sea surrounding KAM islands and a set of invariant spanning curves limiting the ...

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Collision and Stable Regions around Bodies with Simple Geometric Shape

Collision and Stable Regions around Bodies with Simple Geometric Shape

... In this paper we used closed form solutions for the gravitational potential for two simple geometric shape bodies in order to study the behavior of a particle around each one of them. The development was applied to the ...

15

Stickiness in a bouncer model: A slowing mechanism for Fermi acceleration

Stickiness in a bouncer model: A slowing mechanism for Fermi acceleration

... the phase space while periodic regions are still ...the phase space and is confirmed by the secondary peaks of the FTLE ...mixed phase space in general models leads to a universal ...

9

Braz. J. Phys.  vol.28 número4

Braz. J. Phys. vol.28 número4

... The above algebraic calculus is based on an algebra for vectors and covectors (see Appendix). Therefore it gives rise to a structure similar to the momentum phase space i.e the image of a local chart of a ...

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Braz. J. Phys.  vol.37 número2A

Braz. J. Phys. vol.37 número2A

... The interaction between baker maps here involves a rotation of the four parallelepipeds into which the primary digits of both maps divide the four dimensional phase space. Choosing this to be of π/2, merely ...

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Braz. J. Phys.  vol.37 número3A

Braz. J. Phys. vol.37 número3A

... QS space-time correlations in the de- tected radiation from a distant ...freeze-out phase space density, while in the latter case it follows from a weak variation of the electron (positron)-nucleus ...

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