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Showing 1 to 4 of 4 for “"Quantenmechanisches System"”.
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Applications of the density matrix renormalization group to mesoscopic phenomena
… this thesis, I analyze properties of mesoscopic systems that exhibit strong quantum correlations. To this purpose, I adapt and use the density-matrix renormalization group (DMRG), a numerical method that has been developed specifically for analyzing such systems. The following systems are …
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Simulating quantum systems on classical computers with matrix product states
… many-body quantum-mechanical systems using matrix product states (MPS) is considered. Compared to classical systems, quantum many-body systems possess an exponentially enlarged number of degrees of freedom, significantly complicating a simulation on a classical computer. …
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The adaptive time-dependent density matrix renormalization group method : development and applications
… phenomena in one-dimensional strongly correlated systems. The method is based on the original density-matrix renormalization group method by White and the time evolving block-decimation procedure by Vidal. We further show the applicability of the new method to different physical systems: bosonic, …
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Entanglement entropy in quantum many particle systems and their simulation via ansatz states
In contrast to classical many-particle systems for which the number of degrees of freedom grows linearly with the system size, it grows exponentially for quantum many-particle systems. On the one hand, the resulting complexity of the quantum systems has a high potential for technological advances …