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- Aleksandar Bogojevic, Antun Balaz, Aleksandar Belic
- Physical review letters
- 2005

We present a new analytical method that systematically improves the convergence of path integrals of a generic N-fold discretized theory. Using it we calculate the effective actions S(p) for p< or… (More)

- Vladimir Loncar, Antun Balaz, Aleksandar Bogojevic, Srdjan Skrbic, Paulsamy Muruganandam, Sadhan K. Adhikari
- Computer Physics Communications
- 2016

In this paper we present new versions of previously published numerical programs for solving the dipolar Gross–Pitaevskii (GP) equation including the contact interaction in two and three spatial… (More)

Based on a previously developed recursive approach for calculating the short-time expansion of the propagator for systems with time-independent potentials and its time-dependent generalization for… (More)

We calculate the short-time expansion of the propagator for a general many-body quantum system in a time-dependent potential to orders that have not yet been accessible before. To this end the… (More)

Abstract We study dynamics and scaling exponents in a nonlinear network model inspired by the formation of planetary systems. Dynamics of this model leads to phase separation to two types of… (More)

- Ivana Vidanovic, Aleksandar Bogojevic, Aleksandar Belic
- Physical review. E, Statistical, nonlinear, and…
- 2009

We analyze the method for calculation of properties of nonrelativistic quantum systems based on exact diagonalization of space-discretized short-time evolution operators. In this paper we present a… (More)

- Antun Balaz, Aleksandar Bogojevic, Ivana Vidanovic, Axel Pelster
- Physical review. E, Statistical, nonlinear, and…
- 2009

By recursively solving the underlying Schrödinger equation, we set up an efficient systematic approach for deriving analytic expressions for discretized effective actions. With this, we obtain… (More)

- Ivana Vidanovic, Aleksandar Bogojevic, Antun Balaz, Aleksandar Belic
- Physical review. E, Statistical, nonlinear, and…
- 2009

In this paper, building on a previous analysis [I. Vidanović, A. Bogojević, and A. Belić, preceding paper, Phys. Rev. E 80, 066705 (2009)] of exact diagonalization of the space-discretized evolution… (More)

We develop an efficient adaptive Monte Carlo algorithm for calculation of partition functions in low dimensions, and demonstrate its use on the case of the anharmonic q4 oscillator in d = 1. The… (More)

We present a completely integrable deformation of the CGHS dilaton gravity model in two dimensions. The solution is a singularity free black hole that at large distances asymptoticaly joins to the… (More)