Vladan Celebonovic

Publications (53) View all

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  Available from: Vladan Celebonovic

  Article: Solid state physics of impact crater formation: further considerations

  V. Celebonovic
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  ABSTRACT: Impact craters exist on solid surface planets, their satellites and many asteroids.The aim of this paper is to propose a theoretical expression for the product $\rho r^{3} v_{1}^{2}$,where the three symbols denote the mass density,radius and speed of the impactor. The expression is derived using well known results of solid state physics,and it can be used in estimating parameters of impactors which have led to formation of craters on various solid bodies in the Solar System.
  04/2013;
• Article: Solid state physics of impact crater formation: a detail

  V. Celebonovic
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  ABSTRACT: Impact craters exist on solid surface planets, their satellites and many asteroids.The aim of this paper is to propose a theoretical expression for the product $\rho r^{3} v_{1}^{2}$,where the three symbols denote the mass density,radius and speed of the impactor. The expression is derived using well known results of solid state physics,and it can be used in estimating parameters of impactors which have led to formation of craters on various solid bodies in the Solar System.
  10/2012;
• Article: The phase equilibrium in a Lennard Jones fluid: possible applications in astrophysics

  V. Celebonovic
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  ABSTRACT: Using standard thermodynamics and previous results of the author, this paper aims to discuss the conditions for phase equilibrium in a Lennard-Jones fluid. Possibilities of astrophysical applications of the results obtained here are discussed to some extent.
  04/2012;
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  Available from: Vladan Celebonovic

  Article: Heating in collisions of solids:possible application to impact craters

  V. Celebonovic
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  ABSTRACT: Due to the importance of collisions and impacts in early phases of the evolution of the planetary system, it is interesting to estimate the heating of a solid target due to an impact in it . A physically simple calculation of the temperature to which a solid target heats up after the impact of a projectile with mass $m$ and speed $v$ is performed,and possibilities for the application of this result in planetology are pointed out.
  02/2012;
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  Available from: Vladan Celebonovic

  Article: The two dimensional Hubbard model:a theoretical tool for molecular electronics

  V. Celebonovic
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  ABSTRACT: When speaking about molecular electronics, the obvious question which occurs is how does one study it theoretically. The simplest theoretical model suitable for application in molecular electronics is the two dimensional Hubbard model. The aim of the present paper is to introduce this model, and give some examples of the systems which it can describe. After a short mathematically oriented discussion, it will be shown how to calculate the electrical conductivity of a particular planar system: a rectangular lattice with mutually independent conductivities along the two axes,but without using the 2D Hamiltonian. This system could find applications in high Tc studies. It will finally be shown that the electrical conductivity of graphene can be determined not by using the full formalism of the $2D$ Hubbard model, but by a slight reformulation of the Hamiltonian of the 1D Hubbard model
  01/2011;