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Full-Response TDDFT on Graphical Processing Units for Modeling Optical Response in Materials

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-10-C-0096
Agency Tracking Number: F09B-T30-0204
Amount: $99,990.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: AF09-BT30
Solicitation Number: 2009.B
Solicitation Year: 2009
Award Year: 2010
Award Start Date (Proposal Award Date): 2010-05-01
Award End Date (Contract End Date): 2011-01-31
Small Business Information
4 Fourth Avenue
Burlington, MA 01803
United States
DUNS: 047627732
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Jason Quennenville
 Principal Investigator
 (781) 273-4770
Business Contact
 Fritz Bien
Title: President
Phone: (781) 273-4770
Research Institution
 Stanford University
 Todd J Martinez
450 Serra Mall
Sanford, CA 94305
United States

 (650) 736-8860
 Nonprofit College or University

Limited computational resources remain a serious obstacle to the application of quantum chemistry in problems of widespread importance, such as the design of new catalysts for use in fuel cells, or for modeling of material and optical properties of liquids and solids. Researchers have a considerable impetus to relieve this bottleneck, both by developing new and more effective algorithms and exploring new computer architectures. Research at Stanford has yielded a working quantum chemistry code for graphical processing units (GPUs) that calculates electronic ground states of systems as large as 2000 atoms using the DFT method. We propose to extend this work to allow calculations of the full optical response of materials using real-time (RT) TDDFT with periodic boundary conditions (PBCs). Our Phase I approach consists of two tasks. First, we will validate our approach for condensed phase problems of interest to the Air Force using existing codes. Secondly, we will derive algorithms for RT-TDDFT method and for PBCs that are suitable for GPU implementation. At the end of our phase II project, we plan to deliver a RT-TDDFT code that can be used with PBCs and that executes on the highly efficient, highly scalable GPU platform. BENEFIT: The product of the proposed STTR effort, after Phase II, is a computer software module that would allow for the efficient and accurate prediction of the linear and non-linear optical response of materials. The software, which will be designed to run on graphical processing units, will permit efficient, thousand-atom simulations using the high-level real-time TDDFT method and periodic boundary conditions. These simulations will 2-3 times faster and 10 times bigger than those performed by current software on standard CPU platforms. The Phase I proof-of-principle demonstration will consist of a test of full-response function, real-time (RT) TDDFT for its applicability to Air Force problems and the derivation of the mathematical algorithms for RT-TDDFT with periodic boundary conditions. This new simulation software will enable modeling of the complex interaction of light and matter in photovoltaic materials and non-linear optical devices, as well the UV/Vis absorption spectra of chemical and biological agents, explosives for better detection techniques.

* Information listed above is at the time of submission. *

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