Time Propagation and Spectroscopy of Fermionic Systems Using a Stochastic Technique.


Type
Article
Change log
Authors
Guther, Kai 
Dobrautz, Werner 
Gunnarsson, Olle 
Abstract

We present a stochastic method for solving the time-dependent Schrödinger equation, generalizing a ground state full configuration interaction quantum Monte Carlo method. By performing the time integration in the complex plane close to the real-time axis, the numerical effort is kept manageable and the analytic continuation to real frequencies is efficient. This allows us to perform ab initio calculation of electron spectra for strongly correlated systems. The method can be used as a cluster solver for embedding schemes.

Description
Keywords
0104 Statistics
Journal Title
Phys Rev Lett
Conference Name
Journal ISSN
0031-9007
1079-7114
Volume Title
121
Publisher
American Physical Society (APS)