Exact Time-Dependent Exchange-Correlation Potential in Electron Scattering Processes

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Universal dynamical steps in the exact time-dependent exchange-correlation potential.

We show that the exact exchange-correlation potential of time-dependent density-functional theory displays dynamical step structures that have a spatially nonlocal and time nonlocal dependence on the density. Using one-dimensional two-electron model systems, we illustrate these steps for a range of nonequilibrium dynamical situations relevant for modeling of photochemical or physical processes:...

متن کامل

v 1 9 S ep 1 99 8 Exact exchange - correlation potential for a time - dependent two electron system

We obtain an exact solution of the time-dependent Schrödinger equation for a two-electron system confined to a plane by an isotropic parabolic potential whose curvature is periodically modulated in time. From this solution we compute the exact time-dependent exchange correlation potential vxc which enters the Kohn-Sham equation of time-dependent density functional theory. Our exact result provi...

متن کامل

Real-time electron dynamics with exact-exchange time-dependent density-functional theory.

The exact exchange potential in time-dependent density-functional theory is defined as an orbital functional through the time-dependent optimized effective potential (TDOEP) method. We numerically solve the TDOEP integral equation for the real-time nonlinear intersubband electron dynamics in a semiconductor quantum well with two occupied subbands. It is found that memory effects become signific...

متن کامل

8 N ov 2 01 2 Universal Dynamical Steps in the Exact Time - Dependent Exchange - Correlation Potential

P. Elliott, J.I. Fuks, A. Rubio, 3 and N. T. Maitra Department of Physics and Astronomy, Hunter College and the Graduate Center of the City University of New York, 695 Park Avenue, New York, New York 10065, USA Nano-Bio Spectroscopy group, Dpto. Fı́sica de Materiales, Universidad del Paı́s Vasco, Centro de Fı́sica de Materiales CSIC-UPV/EHU-MPC and DIPC, Av. Tolosa 72, E-20018 San Sebastián, Spain...

متن کامل

System-dependent exchange-correlation functional with exact asymptotic potential and εHOMO ≈ - I.

Density scaling considerations are used to derive an exchange-correlation explicit density functional that is appropriate for the electron deficient side of the integer and which recovers the exact r → ∞ asymptotic behaviour of the exchange-correlation potential. The functional has an unconventional mathematical form with parameters that are system-dependent; the parameters for an N-electron sy...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review Letters

سال: 2017

ISSN: 0031-9007,1079-7114

DOI: 10.1103/physrevlett.119.263401