Strongly-correlated electron systems
A first principles approach to modelling magnetism in strongly correlated electron systems
... non strongly correlated systems, is highly ...homogeneous electron gas during first principles implementations of the DLM, since the LDA has always been employed in ...oxide systems, ...
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Density-functional theory and the v-representability problem for model strongly correlated electron-systems
... In the formalism used in Ref. 5, T [n] is equal to the hopping energy of the corresponding system with zero interaction and would therefore be proportional to t, whereas the Hartree term is constant if the occupation ...
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Kugler, Fabian (2019): Renormalization group approaches to strongly correlated electron systems. Dissertation, LMU München: Fakultät für Physik
... We present a functional renormalization group (fRG) study of the two dimensional Hub- bard model, performed with an algorithmic implementation which lifts some of the com- mon approximations made in fRG calculations. In ...
246
A Theoretical Study of Phase Separation in Strongly Correlated Electron Systems with Wide and Narrow Bands
... Using the theoretical formalism of A O Sboychakov 6 and R Schaffer etal 7 , we have theoretically studied phase separation in strongly correlated electron system with wide and narrow bands. In ...
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Correlated Electron Systems and High Temperature Superconductivity
... in correlated-electron systems, especially in the two- dimensional Hubbard model and the three-band d-p ...also electron-phonon ...in correlated-electron systems by using ...
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Studies On Fractionalization And Topology In Strongly Correlated Systems From Zero To Two Dimensions
... a correlated fluid of electrons and holes can exhibit fractional quantum Hall effects at zero magnetic ...broken electron-hole exciton condensation in our lattice models using mean field ...
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Efficient tight-binding approach for the study of strongly correlated systems
... homogeneous electron gas 共 LDA 兲 , which has been proven to be very successful for solids even if not all systems are equally well ...with strongly correlated electrons, however, are ex- ...
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Strongly correlated ab initio calculations based on the GW method and their application to Vanadium Dioxide
... Mott systems which must be simulated in order for the technique to be considered an accurate ...Mott systems exhibit a “giant transfer of spectral weight” which clearly il- lustrates the failure of band ...
150
Investigation of correlated electron systems under uni axial strain
... the electron momentum p is no longer a good quantum ...the electron energies perturbatively, one finds that gaps in the spectrum open up at the Brillouin zone ...system strongly depends on the ...
159
An Orbital dependent Correlation Energy Functional in Density functional Theory for the Study of Strongly correlated Electronic Systems
... The proper allowance for short-range correlation between conduction or valence electrons in the presence of the nuclei probably will give less screening of each nucleus in its vicinity to enhance the electron ...
9
Quantum Monte Carlo Methods applied to strongly correlated and highly inhomogeneous many-Fermion systems
... the electron in the quantum well is extremely strong, and at all relevant densities only one subband is occu- ...quasi-unidimensional systems have been performed by Casula, Sorella, and Sen- atore ...
82
Time dependent electron transport through a strongly correlated quantum dot: multiple probe open boundary conditions approach
... a strongly-correlated quantum dot by using a re- cently proposed multiple-probe battery method for time- dependent simulations of open ...strong electron correlation as in Coulomb ...
10
Strongly Correlated Systems: Transport, Entanglement and Dynamics
... with systems consisting of many (more than three) interacting particles, for which exact calculations become ...of electron correlations – when each electron’s view of its surroundings is influenced by the ...
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Diffusion models in strongly chaotic Hamiltonian systems
... for systems o f dimension greater than 2 (except perhaps for some partial results by Wiggins (W 92j) we have to use the techniques o f the previous sections ...
170
Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms
... We have so far studied crystalline order in the Rydberg dressed systems. Actually, the physics of these compet- ing orders can also be exhibited in dipolar system loaded in an optical lattice, along with quick ...
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Theory of Electron Spin Resonance in Ferromagnetically Correlated Heavy Fermion Compounds
... If the ferromagnetic correlations are not strong enough to produce long-range order at any temperature, i.e. their nature is short-ranged, then the susceptibility is proportional to T −γ and again the relaxation rate is ...
29
Foundation of Hydrodynamics of Strongly Interacting Systems
... finite systems with non-isotropic geome- tries for which the quantum effects and mean field effects are important, the dynamics of the strongly- coupled system will be influenced more by the quantum stress ...
15
Observation of inhibited electron ion coupling in strongly heated graphite
... calculated as described above. This provides the initial condition, and the energy relaxation then evolves according to Eqs. (1) and (2). The coupling coefficient itself is difficult to model from first principles as it ...
6
Pfeffer, Tobias (2019): Homotopy and renormalization group approaches for strongly correlated systems. Dissertation, LMU München: Fakultät für Physik
... these systems an alternative mechanism for the destruction of superfluidity fundamentally different from the proliferation of topological defects has been a contentious one for several decades - especially in the ...
150
Electron States and Light Absorption in Strongly Oblate and Strongly Prolate Ellipsoidal Quantum Dots in Presence of Electrical and Magnetic Fields
... investigations due to wide band gap and availability of well elaborated growth techniques of various systems incorporating such materials. As a result of natural diffusion process during the growth of QDs, the ...
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