Quasiparticle twist dynamics in non-symmorphic materials
Sign Up to like & getrecommendations! Published in 2021 at "Materials Today Physics"
DOI: 10.1016/j.mtphys.2021.100548
Abstract: Abstract Quasiparticle physics underlies our understanding of the microscopic dynamical behaviors of materials that govern a vast array of properties, including structural stability, excited states and interactions, dynamical structure factors, and electron and phonon conductivities.… read more here.
Keywords: quasiparticle; dynamics non; physics; twist dynamics ... See more keywords
Dynamical quasiparticle properties of gapped monolayer graphene in the presence of Holstein phonons
Sign Up to like & getrecommendations! Published in 2019 at "Solid State Communications"
DOI: 10.1016/j.ssc.2018.10.011
Abstract: Abstract We have calculated the quasiparticle particle self-energy and spectral function in a graphene plane when a symmetry breaking of the sublattice is occurred. Holstein model Hamiltonian has been applied to describe the electron dynamics… read more here.
Keywords: gap parameter; graphene; dependence; quasiparticle ... See more keywords
Quasiparticle band structures and optical properties of monolayer ZrNX (X=Cl, Br, I) under exciton effect
Sign Up to like & getrecommendations! Published in 2020 at "Solid State Communications"
DOI: 10.1016/j.ssc.2020.114049
Abstract: Abstract The quasiparticle band structures of monolayer α-ZrNX (X = Cl, Br, I) and β-ZrNX (X = Cl, Br, I) are researched by using an exact quasiparticle approximation GW theory. Our results show that both monolayer α-ZrNX (X = Cl, Br,… read more here.
Keywords: quasiparticle; exciton; optical properties; band ... See more keywords
Unveiling quasiparticle dynamics of topological insulators through Bayesian modelling
Sign Up to like & getrecommendations! Published in 2021 at "Communications Physics"
DOI: 10.1038/s42005-021-00673-6
Abstract: Quasiparticle - a key concept to describe interacting particles - characterizes electron-electron interaction in metals (Fermi liquid) and electron pairing in superconductors. While this concept essentially relies on the simplification of hard-to-solve many-body problem into… read more here.
Keywords: quasiparticle; many body; quasiparticle dynamics; bayesian modelling ... See more keywords
Dynamic properties of asymmetric double Josephson junction stack with quasiparticle imbalance.
Sign Up to like & getrecommendations! Published in 2019 at "Nanotechnology"
DOI: 10.1088/1361-6528/ab1a8e
Abstract: We study analytically and numerically the influence of the quasiparticle charge imbalance on the dynamics of the asymmetric Josephson stack formed by two inequivalent junctions: the fast capacitive junction JJ 1 and slow non-capacitive junction… read more here.
Keywords: imbalance; quasiparticle; stack; dynamic properties ... See more keywords
Construction of Green's functions on a quantum computer: Quasiparticle spectra of molecules
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.101.012330
Abstract: We propose a scheme for the construction of the one-particle Green's function (GF) of an interacting electronic system via statistical sampling on a quantum computer. Although the nonunitarity of creation and annihilation operators for the… read more here.
Keywords: construction green; construction; quantum computer; green functions ... See more keywords
Emergence of quasiparticle multiplets in curium
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.195123
Abstract: A combination of the density functional theory and the single-site dynamical mean-field theory is employed to study the electronic structures of various allotropes of elemental curium (Cm-I, Cm-II, and Cm-III). We find that the 5$f$… read more here.
Keywords: multiplets curium; iii phase; quasiparticle multiplets; emergence quasiparticle ... See more keywords
Finite electric-field approach to evaluate the vertex correction for the screened Coulomb interaction in the quasiparticle self-consistent GW method
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.205120
Abstract: We apply the quasiparticle self-consistent GW method (QSGW) to slab models of ionic materials, LiF, KF, NaCl, MgO, and CaO, under electric field. Then we obtain the optical dielectric constants E(Slab) from the differences of… read more here.
Keywords: vertex correction; consistent method; electric field; quasiparticle self ... See more keywords
Substrate screening approach for quasiparticle energies of two-dimensional interfaces with lattice mismatch
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.205113
Abstract: The authors develop an efficient and accurate interpolation technique for the matrix elements of dielectric matrices in the entire $\mathbf{q}$ + $\mathbf{G}$ reciprocal space between material and substrate.The method makes possible quasiparticle energy calculations within… read more here.
Keywords: quasiparticle; quasiparticle energies; screening approach; substrate screening ... See more keywords
Anisotropic fermionic quasiparticles
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.045303
Abstract: We have carried out a comprehensive investigation of the quasiparticle properties of a two-dimensional electron gas, interacting via the long-range Coulomb interaction in the presence of bare mass anisotropy (i.e., with an elliptic noninteracting Fermi… read more here.
Keywords: anisotropy; quasiparticle; mass; energy ... See more keywords
Heavy quasiparticle bands in the underscreened quasiquartet Kondo lattice
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.155121
Abstract: We study the quasiparticle spectrum in an underscreened Kondo-lattice (KL) model that involves a single spin degenerate conduction band and two crystalline-electric-field (CEF) split Kramers doublets coupled by both orbital-diagonal and nondiagonal exchange interactions. We… read more here.
Keywords: quasiparticle; model; quasiparticle bands; kondo lattice ... See more keywords