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相关论文: Electron and electron-hole quasiparticle states in…

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We theoretically investigate correlated electron-hole states in vertically coupled quantum dots. Employing a prototypical double-dot confinement and a configuration-interaction description for the electron-hole states, it is shown that the…

介观与纳米尺度物理 · 物理学 2009-11-07 Filippo Troiani , Ulrich Hohenester , Elisa Molinari

We review and develop recent results regarding Leviton excitations generated in topological states of matter - such as integer and fractional quantum Hall edge channels - and carrying a charge multiple of the electronic one. The peculiar…

介观与纳米尺度物理 · 物理学 2018-11-14 D. Ferraro , F. Ronetti , L. Vannucci , M. Acciai , J. Rech , T. Jockheere , T. Martin , M. Sassetti

Coulomb interaction has a striking effect on electronic propagation in one dimensional conductors. The interaction of an elementary excitation with neighboring conductors favors the emergence of collective modes which eventually leads to…

介观与纳米尺度物理 · 物理学 2016-09-13 V. Freulon , A. Marguerite , J. -M Berroir , B. Plaçais , A. Cavanna , Y. Jin , G. Fève

By propagating the many-body Schr\"odinger equation, we determine the exact time-dependent Kohn-Sham potential for a system of strongly correlated electrons which undergo field-induced tunneling. Numerous features are entirely absent from…

The electronic and emission properties of correlated multi-particle states are studied theoretically using ${\bf k}\cdot{\bf p}$ and the configuration interaction methods on a well-known and measured GaAs/AlGaAs quantum dots as a test…

介观与纳米尺度物理 · 物理学 2025-04-15 Petr Klenovsky

We propose a time-dependent many-body approach to study the short-time dynamics of correlated electrons in quantum transport through nanoscale systems contacted to metallic leads. This approach is based on the time-propagation of the…

介观与纳米尺度物理 · 物理学 2011-11-28 Petri Myohanen , Adrian Stan , Gianluca Stefanucci , Robert van Leeuwen

Electron-electron correlation forms the basis of difficulties encountered in many-body problems. Accurate treatment of the correlation problem is likely to unravel some nice physical properties of matter embedded in this correlation. In an…

量子物理 · 物理学 2022-03-24 Eric Ouma Jobunga

We present a time-dependent study of electron transport through a strongly correlated quantum dot. The time-dependent current is obtained with the multiple-probe battery method, while adiabatic lattice density functional theory in the Bethe…

介观与纳米尺度物理 · 物理学 2013-02-06 A. Pertsova , M. Stamenova , S. Sanvito

The coherence and phase evolution of electrons in a mesoscopic system in the Kondo correlated regime were studied. The Kondo effect, in turn, is one of the most fundamental many-body effects where a localized spin interacts with conduction…

介观与纳米尺度物理 · 物理学 2009-10-31 Yang Ji , M. Heiblum , D. Sprinzak , D. Mahalu , Hadas Shtrikman

We present a proposal for the experimental observation of energy-time entanglement of quasi-particles in mesoscopic physics. This type of entanglement arises whenever correlated particles are produced at the same time and this time is…

介观与纳米尺度物理 · 物理学 2009-11-10 Valerio Scarani , Nicolas Gisin , Sandu Popescu

The multilayer multiconfiguration time-dependent Hartree (ML-MCTDH) theory within second quantization representation of the Fock space, a novel numerically exact methodology to treat many-body quantum dynamics for systems containing…

介观与纳米尺度物理 · 物理学 2012-01-05 Haobin Wang , Ivan Pshenichnyuk , Rainer Härtle , Michael Thoss

We theoretically studied the quasiparticle transport in a 2D electron gas biased in the quantum Hall regime and in the presence of a lateral potential barrier. The lateral junction hosts the specific magnetic field dependent quasiparticle…

介观与纳米尺度物理 · 物理学 2017-04-28 A. M. Kadigrobov , M. V. Fistul

Temporal correlations in pulsed electron beams reflect the microscopic dynamics of emission and interparticle interaction. In femtosecond electron emission from nanoscale field emitters, Coulomb interactions result in structured…

介观与纳米尺度物理 · 物理学 2025-05-16 Rudolf Haindl , Valerio Di Giulio , Armin Feist , Claus Ropers

Using a method of characterizing entanglement in the framework of quantum field theory, we investigate the optical generation and quantitative characterizations of quantum entanglement in an electron-hole system, in presence of spin-orbit…

介观与纳米尺度物理 · 物理学 2009-11-10 Yu Shi

The excitation of quasi-particles near the extrema of the electronic band structure is a gateway to electronic phase transitions in condensed matter. In a many-body system, quasi-particle dynamics are strongly influenced by the electronic…

材料科学 · 物理学 2023-12-05 T. P. H. Sidiropoulos , N. Di Palo , D. E. Rivas , A. Summers , S. Severino , M. Reduzzi , J. Biegert

We demonstrate the generation of Coulomb-correlated pair, triple and quadruple states of free electrons by femtosecond photoemission from a nanoscale field emitter inside a transmission electron microscope. Event-based electron spectroscopy…

介观与纳米尺度物理 · 物理学 2023-11-28 Rudolf Haindl , Armin Feist , Till Domröse , Marcel Möller , John H. Gaida , Sergey V. Yalunin , Claus Ropers

Single- and many-electron calculations and related dynamics are presented for a dimer and small Hubbard clusters. Floquet-Bloch picture for a periodic dimer is discussed with regard to the time dependence of the Peierls gap and the…

Excitons in the weakly interacting regime can be well-described by many-body perturbation theories such as the Bethe-Salpeter equation formalism. However, for materials such as transition metal dichalcogenides moir\'e heterostructures under…

材料科学 · 物理学 2026-03-16 Fangzhou Zhao , Carlos Mejuto-Zaera , Angel Rubio , Vojtěch Vlček

We investigate the multielectron effects on high-harmonic generation from solid-state materials using the time-dependent Hartree-Fock theory. We find qualitative change in harmonic spectra, in particular, multiple-plateau formation at…

In this work, we provided a proof-of-principle of efficient production of maximally entangled states using charged quantum dots coupled to vibrational modes. The physical system consists of two pairs of quantum dots, each pair with a single…

介观与纳米尺度物理 · 物理学 2019-10-23 F. M. Souza , P. A. Oliveira , L. Sanz