中文
相关论文

相关论文: Multi-mode Floquet NEGF method for driven quantum …

200 篇论文

Non-equilibrium Green's function (NEGF) and quantum master equation (QME) are two main classes of approaches for electronic transport. We discuss various Floquet variances of these formalisms for transport properties of a quantum dot driven…

量子物理 · 物理学 2024-04-10 Vahid Mosallanejad , Yu Wang , Wenjie Dou

We review one of the most versatile theoretical approaches to the study of time-dependent correlated quantum transport in nano-systems: the non-equilibrium Green's function (NEGF) formalism. Within this formalism, one can treat, on the same…

介观与纳米尺度物理 · 物理学 2022-06-27 M. Ridley , N. W. Talarico , D. Karlsson , N. Lo Gullo , R. Tuovinen

A quantum transport model incorporating spin scattering processes is presented using the non-equilibrium Green's function (NEGF) formalism within the self-consistent Born approximation. This model offers a unified approach by capturing the…

介观与纳米尺度物理 · 物理学 2009-11-11 Ahmet Ali Yanik , Gerhard Klimeck , Supriyo Datta

This review deals with the nonequilibrium Green's function (NEGF) method applied to the problems of energy transport due to atomic vibrations (phonons), primarily for small junction systems. We present a pedagogical introduction to the…

介观与纳米尺度物理 · 物理学 2013-05-28 Jian-Sheng Wang , Bijay Kumar Agarwalla , Huanan Li , Juzar Thingna

We study quantum transport in a periodically driven (Floquet) topological system coupled to static fermionic reservoirs. Using the Floquet nonequilibrium Green's-function (NEGF) formalism we show, from exact numerics for a strip geometry,…

介观与纳米尺度物理 · 物理学 2026-05-14 Rekha Kumari , Manas Kulkarni , Abhishek Dhar

Simultaneous driving by two periodic oscillations yields a practical technique for further engineering quantum systems. For quantum transport through mesoscopic systems driven by two strong periodic terms, a non-perturbative Floquet-based…

介观与纳米尺度物理 · 物理学 2025-11-04 Vahid Mosallanejad , Wenjie Dou

We study the nonlinear elastic quantum electronic transport properties of nanoscopic devices using the Nonequilibrium Green's function (NEGF) method. The Green's function method allows us to expand the $I-V$ characteristics of a given…

介观与纳米尺度物理 · 物理学 2009-07-14 Alexis R. Hernández , Caio H. Lewenkopf

The Non-equilibrium Green's function (NEGF) formalism is a particularly powerful method to simulate the quantum transport properties of nanoscale devices such as transistors, photo-diodes, or memory cells, in the ballistic limit of…

This research demonstrates analytical time-dependent non-equilibrium green function (TD-NEGF) algorithms to investigate dynamical functionalities of quantum devices, especially for photon-assisted transports. Together with the lumped…

介观与纳米尺度物理 · 物理学 2021-06-08 I-Lin Ho

We investigate the effects of alternating voltage on nonequilibrium quantum systems with localised phonon modes. Nonequilibrium Green's functions are utilised, with electron-phonon coupling being considered with the $GD$ approximation…

介观与纳米尺度物理 · 物理学 2023-01-25 Thomas D. Honeychurch , Daniel S. Kosov

The extraordinary quantum properties of nonequilibrium systems governed by dissipative dynamics have become a focal point in contemporary scientific inquiry. The Nonequilibrium Green's Functions (NEGF) theory provides a versatile method for…

材料科学 · 物理学 2024-02-19 Gianluca Stefanucci

We aim to provide engineers with an introduction to the non-equilibrium Green's function (NEGF) approach, which provides a powerful conceptual tool and a practical analysis method to treat small electronic devices quantum mechanically and…

介观与纳米尺度物理 · 物理学 2007-05-23 M. P. Anantram , M. S. Lundstrom , D. E. Nikonov

In this paper we present a general formulation for electronic transport that combines strong correlation effects with broadening and quantum coherence, and illustrate it with a simple example ("spin blockade") that clearly demonstrates all…

介观与纳米尺度物理 · 物理学 2007-05-23 Supriyo Datta

We present an efficient implemention of a non-equilibrium Green function (NEGF) method for self-consistent calculations of electron transport and forces in nanostructured materials. The electronic structure is described at the level of…

介观与纳米尺度物理 · 物理学 2015-06-04 Jingzhe Chen , Kristian S. Thygesen , Karsten W. Jacobsen

We present here a self consistent solution of quantum transport, using the Non Equilibrium Green's Function (NEGF) method, and magnetization dynamics, using the Landau-Lifshitz-Gilbert (LLG) formulation. We have applied this model to study…

介观与纳米尺度物理 · 物理学 2007-05-23 Sayeef Salahuddin , Supriyo Datta

Since proposed in the 70s, the Non-Equilibrium Green Function (NEGF) method has been recognized as a standard approach to quantum transport simulations. Although it achieves superiority in simulation accuracy, the tremendous computational…

介观与纳米尺度物理 · 物理学 2023-12-05 Yingzhanghao Zhou , Xiang Chen , Peng Zhang , Jun Wang , Lei Wang , Hong Guo

We propose an efficient procedure to obtain Green's functions by combining the shifted conjugate orthogonal conjugate gradient (shifted COCG) method with the nonequilibrium Green's function (NEGF) method based on a real-space…

计算物理 · 物理学 2015-02-03 Shigeru Iwase , Takeo Hoshi , Tomoya Ono

State-of-the-art industrial semiconductor device modeling is based on highly efficient Drift-Diffusion (DD) models that include some quantum corrections for nanodevices. In contrast, latest academic quantum transport models are based on the…

The non-equilibrium Green's function (NEGF) approach offers a practical framework for simulating various phenomena in mesoscopic systems. As the dimension of electronic devices shrinks to just a few nanometers, the need for new…

介观与纳米尺度物理 · 物理学 2025-04-09 Vahid Mosallanejad , Kuei-Lin Chiu , Wenjie Dou

We derive a general expression for the electron nonequilibrium (NE) distribution function in the context of steady state quantum transport through a two-terminal nanodevice with interaction. The central idea for the use of NE distributions…

介观与纳米尺度物理 · 物理学 2014-02-26 H. Ness
‹ 上一页 1 2 3 10 下一页 ›