Simulating quantum many-body systems is a highly demanding task since the required resources grow exponentially with dimension of system. In case fermionic systems, this even harder nonlocal interactions emerge due to antisymmetric character wave function. Here, we introduce digital-analog algorithm simulate wide class Hamiltonians including paradigmatic one-dimensional Fermi-Hubbard model. The...

A digital simulation of an induction machine is described. The suitable for analyzing the operation either a motor or generator with different speeds. load represented in by symmetrical unsymmetrical R, L circuits. computer program described this paper calculates both transient and steady-state performance from its equivalent circuit parameters. effect magnitude direction shaft speed on stabili...

The contribution deals with the utilization of Matlab for simulation and analysis of digital QPSK and M-QAM modulators and demodulators used in DVB (Digital Video Broadcasting) standard. Presented modulators and demodulators are optional modules of simulation system that can evaluate the influence of transmission errors on transmitted digital signal and according visual information. The system ...

This paper gives a survey of principal simulation methods for digital circuits and systems when the hardware description language VHDL is used. The construction of a VHDL program and the usual modelling procedures of digital components and signals will be pointed out. Afterwards the description of structure and behavior of digital systems in VHDL will be explained. After having described severa...