24 citations · 65 across the 17 of their papers we have counts for
18 papers
Real-Space Renormalization of Stabilizer Rényi Entropies in Spin Chains
Sonja Gombar, Petar Mali, Slobodan Radošević +3
Stabilizer states constitute an important class of quantum states that can be generated from computational-basis states using Pauli operators and Clifford gates. Although they may…
Hamiltonian dynamics of classical spins
Slobodan Radošević, Sonja Gombar, Milica Rutonjski +3
We discuss the geometry behind classical Heisenberg model at the level suitable for third or fourth year students who did not have the opportunity to take a course on differential…
Infinite series involving special functions obtained using simple one-dimensional quantum mechanical problems
Sonja Gombar, Milica Rutonjski, Petar Mali +3
In this paper certain classes of infinite sums involving special functions are evaluated analytically by application of basic quantum mechanical principles to simple models of half…
Geometry of Classical Nambu-Goldstone Fields
Slobodan Radošević
A coordinate-free formulation of first order effective field theory, in which Nambu-Goldstone fields are described as sections on associated bundle, is presented. This construction…
Summation formulas generated by Hilbert space eigenproblem
Petar Mali, Sonja Gombar, Slobodan Radoševi\' c +3
We demonstrate that certain classes of Schl\" omilch-like infinite series and series that include generalized hypergeometric functions can be calculated in closed form starting fro…
The largest Lyapunov exponent as a tool for detecting relative changes in the particle positions
Petar Mali, Slobodan Radošević, Sonja Gombar +3
Dynamics of the driven Frenkel-Kontorova model with asymmetric deformable substrate potential is examined by analyzing response function, the largest Lyapunov exponent and Poincaré…
Using quantum mechanics for calculation of different infinite sums
Petar Mali, Milica Rutonjski, Slobodan Radošević +2
We demonstrate that certain class of infinite sums can be calculated analytically starting from a specific quantum mechanical problem and using principles of quantum mechanics. For…
Influence of anharmonic convex interparticle potential and Shapiro steps in the opposite direction of driving force
Sonja Gombar, Petar Mali, Slobodan Radosevic +3
The response function and largest Lyapunov exponent analysis were applied to the driven overdamped Frenkel-Kontorova model with two types of anharmonic convex interparticle potenti…
Exciton dynamics in different aromatic hydrocarbon systems
Milica Rutonjski, Petar Mali, Slobodan Radosevic +3
The exciton dispersion is examined in the case of four selected prototypical molecular solids: pentacene,tetracene,picene,chrysene. The model parameters are determined by fitting t…
Complexity of Shapiro steps
Petar Mali, Andjela Sakota, Jasmina Tekic +3
We demonstrate on the example of the dc+ac driven overdamped Frenkel-Kontorova model that an easily calculable measure of complexity can be used for the examination of Shapiro step…
Dynamics of Frenkel excitons in pentacene
Sonja Gombar, Petar Mali, Milan Pantić +2
The dispersion relation for noninteracting excitons and the influence of perturbative correction is examined in the case of pentacene structure. The values of exchange integrals ar…
Correlation between quantum entanglement and quantum coherence in the case of XY spin chains with the Dzyaloshinskii-Moriya interaction
Sonja Gombar, Petar Mali, Milan Pantic +2
Recently, there has been an increased interest in studying quantum entanglement and quantum coherence. Since both of these properties are attributed to the existence of quantum sup…
Magnon-Magnon Interactions in O(3) Ferromagnets and Equations of Motion for Spin Operators
Slobodan M. Radošević
The method of equations of motion for spin operators in the case of O(3) Heisenberg ferromagnet is systematically analyzed starting from the effective Lagrangian. It is shown that…
Phase diagram of spin- quantum Heisenberg antiferromagnet on the body-centered-cubic lattice in random phase approximation
Milan R. Pantic, Darko V. Kapor, Slobodan M. Radosevic +1
Magnetic properties of spin Heisenberg antiferromagnet on body centered cubic lattice are investigated. By using two-time temperature Green's functions, sublat…
Thermodynamics of O(3) Classical Heisenberg Model in Multipath Metropolis Simulation
Petar Mali, Slobodan Radosevic, Predrag S. Rakic +2
We study the thermodynamics of classical Heisenberg model using the multipath approach to Metropolis algorithm Monte Carlo simulation. This simulation approach produces uncorrelate…
Magnon Energy Renormalization and Low-Temperature Thermodynamics of O(3) Heisenberg Ferromagnets
Slobodan M. Radosevic, Milan R. Pantic, Milica V. Pavkov-Hrvojevic +1
We present the perturbation theory for lattice magnon fields of -dimensional O(3) Heisenberg ferromagnet. The effective Hamiltonian for the lattice magnon fields is obtained sta…
Multipath Metropolis Simulation of Classical Heisenberg Model
Predrag S. Rakic, Slobodan M. Radosevic, Petar M. Mali +2
Processor cores are becoming less expensive and thus more accessible. To utilize increasing number of available computing elements, good parallel algorithms are necessary. In light…
Evaluation of Watson-like Integrals for Hyper bcc Antiferromagnetic Lattice
S. M. Radosevic, M. R. Pantic, D. V. Kapor +2
Watson-like integrals for a d-dimensional bcc antiferromagnetic lattice I_d(η) and J_d(η) and another two similar integrals are evaluated in an exact way in terms of generalized hy…