What Does CCSDT Stand For?

CCSDT stands for Coupled Cluster With Single Double And Triple Excitation

CCSDT, or Coupled Cluster With Single Double And Triple Excitation, is a sophisticated computational method used in quantum chemistry to accurately describe the electronic structure of many-body systems. It extends the coupled cluster approach by incorporating not only single and double excitations but also triple excitations, leading to improved accuracy in calculating molecular properties and reaction dynamics. This method is particularly valuable for systems where electron correlation plays a significant role, allowing for high-level predictions in molecular modeling and simulations.