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- Centre National de la Recherche ScientifiqueFR19 papers
- European Organization for Nuclear ResearchCH17 papers
- GSI Helmholtz Centre for Heavy Ion ResearchDE17 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR17 papers
- Max Planck Institute for Nuclear PhysicsDE16 papers
- Johannes Gutenberg University MainzDE15 papers
- Michigan State UniversityUS13 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE12 papers
- Universitätsmedizin GreifswaldDE11 papers
- Université Paris-SudFR11 papers
- UNSW SydneyAU11 papers
- Technische Universität DresdenDE10 papers
7 papers · 1 filter
Dielectric response of electron-hole systems. Nondegenerate case and quantum corrections
Dirk Semkat, Heinrich Stolz, Wolf-Dietrich Kraeft +1
Analytical results for the dielectric function in RPA are derived for three-, two-, and one-dimensional semiconductors in the weakly-degenerate limit. Based on this limit, quantum…
Quantum phase transitions in the dimerized extended Bose-Hubbard model
Koudai Sugimoto, Satoshi Ejima, Florian Lange +1
We present an unbiased numerical density-matrix renormalization group study of the one-dimensional Bose-Hubbard model supplemented by nearest-neighbor Coulomb interaction and bond…
Multicomponent exciton gas in cuprous oxide: cooling behaviour and the role of Auger decay
Dirk Semkat, Siegfried Sobkowiak, Florian Schöne +3
In this paper we present a hydrodynamic model to describe the dynamics of para- and orthoexcitons in cuprous oxide at ultralow temperatures inside a stress induced potential trap.…
Anyonic Haldane insulator in one dimension
Florian Lange, Satoshi Ejima, Holger Fehske
We demonstrate numerically the existence of a nontrivial topological Haldane phase for the one-dimensional extended (-) Hubbard model with a mean density of one particle per…
Spectral and Entanglement Properties of the Bosonic Haldane Insulator
Satoshi Ejima, Florian Lange, Holger Fehske
We discuss the existence of a nontrivial topological phase in one-dimensional interacting systems described by the extended Bose-Hubbard model with a mean filling of one boson per…
Characterization of Mott-insulating and superfluid phases in the one-dimensional Bose--Hubbard model
Satoshi Ejima, Holger Fehske, Florian Gebhard +4
We use strong-coupling perturbation theory, the variational cluster approach (VCA), and the dynamical density-matrix renormalization group (DDMRG) method to investigate static and…