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The reduction of the asymmetry in the plasma sheath voltages of a cylindrical coaxial capacitively coupled plasma is crucial for efficient surface modification of the inner surfaces of concave three-dimensional structures, including…

加速器物理 · 物理学 2015-07-02 J. Upadhyay , Do Im , S. Popović , A. -M. Valente-Feliciano , L. Phillips , L. Vušković

Here, we propose a Charge Plasma (CP)-based Germanium Double Gate Tunnel Field-Effect Transistor (Ge-DGTFET) device structure, where a CP is induced in the heavily doped source region using the work function engineering of source electrode.…

应用物理 · 物理学 2022-12-29 Sambhu P. Malik , Ajeet K. Yadav , Robin Khosla

We studied experimentally the dynamics of the exchange interaction between two antiparallel electron spins in a so-called metastable double quantum dot where coupling to the electron reservoirs can be ignored. We demonstrate that the level…

We have studied electron correlations in the doped two-dimensional (2D) Hubbard model by using the coupled-cluster method (CCM) to investigate whether or not the method can be applied to correct the independent particle approximations…

强关联电子 · 物理学 2009-10-31 Yoshihiro Asai , Hideki Katagiri

The discharge structure of inductively coupled plasma is studied via fluid simulation and analytic theory collaboration. At low pressure, the discharge is stratified by the double layer, which is modelled as dipole moment. The parabolic…

等离子体物理 · 物理学 2021-11-04 Shu-Xia Zhao , An-Qi Tang

The electrostatic model proposed by Poulos [Phys. Plasmas (2019), $\mathbf{26}$, 022104] to describe the electric potential distribution across and along a magnetized plasma column is used to shed light onto the ability to control…

等离子体物理 · 物理学 2020-01-08 Renaud Gueroult , Jean-Marcel Rax , Nathaniel J. Fisch

A new type of disorder-driven electronic percolation transition is found for two-dimensional electron gas (2DEG), based on a quantum cellular automaton model. This transition is shown to be accompanied with a metal-insulator transition, as…

统计力学 · 物理学 2018-10-17 M. N. Najafi

We introduce a numerical algorithm to stochastically sample the dual fermion perturbation series around the dynamical mean field theory, generating all topologies of two-particle interaction vertices. We show results in the weak and strong…

强关联电子 · 物理学 2016-07-07 Sergei Iskakov , Andrey E. Antipov , Emanuel Gull

We report new experimental results on the generation and dynamics of multiple double layers in front of a positively biased electrode immersed in a DP-machine plasma. Depending on the geometry or the dimensions of the electrode, this…

An rf coaxial capacitively coupled Ar/Cl2 plasma is applied to processing the inner wall of superconducting radio frequency cavities. A dc self-bias potential is established across the inner electrode sheath due to the surface area…

加速器物理 · 物理学 2015-06-18 J. Upadhyay , Do Im , S. Popović , A. -M. Valente-Feliciano , L. Phillips , L. Vušković

Understanding the system-level spectral immittance response of capacitive energy storage devices with analytically tractable physics-based models is not only important for the progress of the technology, but also allows to develop new…

应用物理 · 物理学 2022-02-22 Anis Allagui , Hachemi Benaoum , Hichem Eleuch , Chunlei Wang

A method for the asymmetric focusing of electron bunches, based on the active plasma lensing technique is proposed. This method takes advantage of the strong inhomogeneous magnetic field generated inside the capillary discharge plasma to…

We present a thorough analysis of the electronic detection of charged particles, confined in a Penning trap, via image charges induced in the trap electrodes. Trapping of charged particles in an electrode structure leads to frequency…

原子物理 · 物理学 2009-11-13 D. F. A. Winters , M. Vogel , D. M. Segal , R. C. Thompson

Electrified powertrains rely heavily on magnetics for power conversion, where cost, volume, and weight concerns make integrated multi-use designs an attractive solution. With EV powertrain architectures requiring a boost stage being a major…

系统与控制 · 电气工程与系统科学 2026-05-19 Sachith Wijesooriya , Sandun S. Kuruppu

Deterministic sources of high-fidelity entangled qubit pairs encoded in the dual-rail photonic basis, i.e., presence of a single photon in one of two orthogonal modes, are a key enabling technology of many applications of quantum…

量子物理 · 物理学 2022-03-31 Prajit Dhara , Spencer J. Johnson , Christos N. Gagatsos , Paul G. Kwiat , Saikat Guha

We propose a theoretical expression for the $k$- and $\omega$-dependent dielectric function of a stack of two-dimensional layers coupled along the direction perpendicular to the layers, and discuss some of its properties. We argue that the…

凝聚态物理 · 物理学 2009-10-28 Dirk van der Marel , Jae H. Kim

Strongly correlated systems containing d/f-electrons present a challenge to conventional density functional theory (DFT), such as the widely used local density approximation (LDA) or generalized gradient approximation (GGA). In this work,…

强关联电子 · 物理学 2024-01-19 Bei-Lei Liu , Yue-Chao Wang , Yu Liu , Hai-Feng Liu , Hai-Feng Song

We analyze the instability of an unpolarized uniform quantum plasma consisting of two oppositely charged fermionic components with varying mass ratios, against charge and spin density waves (CDWs and SDWs). Using density functional theory,…

强关联电子 · 物理学 2019-10-22 Zhaoyu Han , Shiwei Zhang , Xi Dai

Computational codes based on the Diffusion Monte Carlo method can be used to determine the quantum state of two-electron systems confined by external potentials of various nature and geometry. In this work, we show how the application of…

化学物理 · 物理学 2021-02-24 Gaia Micca Longo , Carla Maria Coppola , Domenico Giordano , Savino Longo

The paper provides a tutorial to the conceptual layout of a self-consistently coupled Particle-In-Cell/Test-Particle model for the kinetic simulation of sputtering transport in capacitively coupled plasmas at low gas pressures. It explains…

等离子体物理 · 物理学 2017-11-27 Jan Trieschmann , Frederik Schmidt , Thomas Mussenbrock