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Simulation, Computing and Theory

Applying the Scientific Method to this Century's Complex Systems with this Century's Tools

World-class capabilities and research in Theory, Simulation, and Computation to advance science and national security

The cutting-edge work of the Simulation, Computing and Theory Directorate (ALDSCT) is central to improved understanding, control, and prediction of complex natural and engineered systems. Through multidisciplinary co-design we engage theory, experiment, and observation to explore, develop and deploy world-class, robust computational tools, infrastructure, and capabilities. 

Applying Science-Based Prediction

We apply science-based prediction to all aspects of the nuclear weapon enterprise and beyond, using advanced theory, modeling and simulation tools, including AI.

We support other current and emerging national security missions, such as global security challenges, quantum science, applied energy, climate, infrastructure resilience, nano S&T, and biological science, as well as most science frontiers from biophysics to astrophysics.

Integration of experimental, theory and simulation teams

A diagram explaining how experiment data, high performance computing, and theory work together to accelerate discovery and innovation for complex missions

  • Computing and Artificial Intelligence

    Computing and Artificial Intelligence (CAI) Division supports national security with innovative research and problem-solving in computer science, computational physics, applied mathematics, statistics, and the integration of large data streams.

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  • High-Performance Computing

    High-Performance Computing (HPC) Division manages supercomputing center operations, develops and deploys cutting-edge technologies to enable world-class current and future high-performance computing supporting national security.

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  • Theoretical

    Theoretical (T) Division develops cutting-edge solutions to complex problems in many disciplines of theoretical science, including applied mathematics, chemistry, biology, engineering, and theoretical physics with the goal of strengthening national security.

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Centers

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Center for Nonlinear Studies

ALDSCT operates the Center for Nonlinear Studies (CNLS) to conduct and support basic scientific research in nonlinear and complex systems phenomena.

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Itsi

Information Science and Technology Institute

ALDSC coordinates with the Information Science & Technology Institute (ISTI) to implement and foster collaborative research, workforce and program development, and technical exchange.

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Links

  • Information Science and Technology Pillar

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