IMPLEMENTATION OF A DENSITY FUNCTIONAL THEORY ON QUANTUM PROCESSORS BY GENERALIZED GRADIENT APPROACH

DE602024004007T2Active Publication Date: 2026-04-15TATA CONSULTANCY SERVICES LTD
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-04-15

AI Technical Summary

Technical Problem

Current classical computational methods for simulating large chemical systems face significant bottlenecks due to cubic and quartic scaling in Kohn-Sham Density Functional Theory (DFT) calculations, leading to lengthy computation times, especially for systems with thousands of atoms, which are not adequately addressed by existing hybrid quantum-classical approaches.

Method used

Implementing Density Functional Theory (DFT) on quantum processors using generalized gradient approximation, utilizing quantum processors to solve eigenvalue problems through a hybrid quantum computing approach, which includes a method for implementing density functional theory on a quantum processor.

Benefits of technology

This approach significantly reduces the computational time and complexity of DFT calculations, enabling efficient simulation of large chemical systems by leveraging quantum processors to overcome the scaling limitations of classical methods.

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