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We introduce a new mesoscopic transistor, which consists of a superconducting island connected to superconducting and normal electrodes via two mesoscopic tunnel junctions. Furthermore, the island is being charged through a resistor. The…

介观与纳米尺度物理 · 物理学 2007-05-23 H. Seppä , J. Hassel

Studying the excited states of doublets is challenging for their typically multiconfigurational character. We employ light-scanning-tunneling microscopy (light-STM) to investigate photon-induced currents on a single open-shell PTCDA anion…

原子与分子团簇 · 物理学 2025-02-14 Rodrigo Cezar de Campos Ferreira , Amandeep Sagwal , Jiří Doležal , Tomáš Neuman , Martin Švec

The realization of integrated quantum circuits requires precise on-chip control of charge carriers. Aiming at the coherent coupling of distant nanostructures at zero magnetic field, here we study the ballistic electron transport through two…

介观与纳米尺度物理 · 物理学 2020-09-23 Jaan Freudenfeld , Max Geier , Vladimir Umansky , Piet W. Brouwer , Stefan Ludwig

We theoretically investigate the interband transitions and quantum kinetics induced by light carrying orbital angular momentum, or twisted light, in bulk semiconductors. We pose the problem in terms of the Heisenberg equations of motion of…

介观与纳米尺度物理 · 物理学 2011-02-24 G. F. Quinteiro , P. I. Tamborenea

Crystallographic shear phases of niobium oxide form an interesting family of compounds that have received attention both for their unusual electronic and magnetic properties, as well as their performance as intercalation electrode materials…

材料科学 · 物理学 2019-02-26 Can P. Koçer , Kent J. Griffith , Clare P. Grey , Andrew J. Morris

Based on density functional theory, the electronic and optical properties of hybrid organic/perovskite crystals are thoroughly investigated. We consider the mono-crystalline 4FPEPI as material model and demonstrate the optical process is…

材料科学 · 物理学 2015-07-31 J. Even , L. Pedesseau , M. -A. Dupertuis , J. -M. Jancu , C. Katan

We scrutinize the effect of polyvalent ions on polymer-DNA interactions. We extend a recently developed test charge theory to the case of a stiff polymer interacting with a DNA molecule in an electrolyte mixture. The theory accounts for…

软凝聚态物质 · 物理学 2017-03-08 Sahin Buyukdagli

We develop a semiclassical theory for the dynamics of electrons in a magnetic Bloch band, where the Berry phase plays an important role. This theory, together with the Boltzmann equation, provides a framework for studying transport problems…

凝聚态物理 · 物理学 2009-10-28 M. C. Chang , Q. Niu

The coherent optical manipulation of solids is emerging as a promising way to engineer novel quantum states of matter. The strong time periodic potential of intense laser light can be used to generate hybrid photon-electron states.…

介观与纳米尺度物理 · 物理学 2016-01-06 Fahad Mahmood , Ching-Kit Chan , Zhanybek Alpichshev , Dillon Gardner , Young Lee , Patrick A. Lee , Nuh Gedik

Dynamical mean-field theory is generalized to solve the nonequilibrium Keldysh boundary problem: a system is started in equilibrium at a temperature T=0.1, a uniform electric field is turned on at t=0, and the system is monitored as it…

强关联电子 · 物理学 2008-08-14 J. K. Freericks

A wide range of disordered materials contain electronic states that are spatially well localized. In this work, we investigated the electrical response of such systems in non-equilibrium conditions to external electromagnetic field. We…

无序系统与神经网络 · 物理学 2014-12-02 Veljko Janković , Nenad Vukmirović

We study entanglement dynamics in the nearest-neighbour fermionic chain that is subjected to both DC and AC electric fields. The dynamics gives the well known Bloch oscillations in the DC field case provided that the system size is larger…

介观与纳米尺度物理 · 物理学 2018-07-13 Devendra Singh Bhakuni , Auditya Sharma

Existing Quantum Monte Carlo studies have investigated the properties of fermions on a Lieb (CuO$_2$) lattice interacting with an on-site, or near-neighbor electron-electron coupling. Attention has focused on the interplay of such…

强关联电子 · 物理学 2021-01-08 Chunhan Feng , Richard T. Scalettar

In two-dimensional (2D) electron systems, an off-resonant high-frequency circularly polarized electromagnetic field can induce the quasi-stationary bound electron states of repulsive scatterers. As a consequence, the resonant scattering of…

介观与纳米尺度物理 · 物理学 2020-08-07 O. V. Kibis , M. V. Boev , V. M. Kovalev

A systematic field theory is presented for charged systems. The one-loop level corresponds to the classical Debye-H\"uckel (DH) theory, and exhibits the full hierarchy of multi-body correlations determined by pair-distribution functions…

统计力学 · 物理学 2009-10-31 Roland R. Netz , Henri Orland

Metal-organic frameworks (MOFs) are a specific class of hybrid, crystalline, nano-porous materials made of metal-ion-based nodes and organic linkers. Most of the studies on MOFs largely focused on porosity, chemical and structural…

Electronic properties of heterostructures in which a finite number of Mott-insulator layers are sandwiched by semi-infinite metallic leads are investigated by using the dynamical-mean-field method combined with the Keldysh Green's function…

强关联电子 · 物理学 2009-11-13 Satoshi Okamoto

Coherent motion of the electrons in the Bloch states is one of the fundamental concepts of the charge conduction in solid state physics. In layered materials, however, such a condition often breaks down for the interlayer conduction, when…

Bloch oscillations, the oscillatory motion of a quantum particle in a periodic potential, are one of the most fascinating effects of coherent quantum transport. Originally studied in the context of electrons in crystals, Bloch oscillations…

We demonstrate that efficient and nearly field-independent charge separation in organic planar heterojunction solar cells can be described by an incoherent hopping mechanism. We model the separation efficiency of electron-hole pairs created…

介观与纳米尺度物理 · 物理学 2016-11-03 Stavros Athanasopoulos , Steffen Tscheuschner , Heinz Bässler , Anna Köhler
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