Publications (9)
Chiplet Cloud: Building AI Supercomputers for Serving Large Generative Language Models
Huwan Peng, Scott Davidson, Richard Shi +2
Large language models (LLMs) such as OpenAI's ChatGPT and Google's Gemini have demonstrated unprecedented capabilities of autoregressive AI models across multiple tasks triggering…
Development of Anisotropic Magnetized Viscosity for Magnetized Liner Inertial Fusion Simulations in FLASH
Ashwyn Sam, Fernando Garcia-Rubio, Scott Davidson +7
Magnetized liner inertial fusion (MagLIF) operates in a regime where anisotropic transport phenomena fundamentally influence implosion dynamics. In strongly magnetized plasmas, the…
The dark side of energy transport along excitonic wires: On-site energy barriers facilitate efficient, vibrationally-mediated transport through optically dark subspaces
Scott Davidson, Amir Fruchtman, Felix Pollock +1
We present a novel, counter-intuitive method, based on dark state protection, for significantly improving exciton transport efficiency through `wires' comprising a chain of molecul…
Analysis of Preheat Propagation in MagLIF-like Plasmas
Fernando Garcia-Rubio, Scott Davidson, C. Leland Ellison +6
The preheating and pre-magnetization of fusion fuel are key features in Magnetized Liner Inertial Fusion (MagLIF) configurations. Typically, the energy of the preheat laser is depo…
Affordable, manageable, practical, and scalable (AMPS) high-yield and high-gain inertial fusion
Andrew Alexander, Laura Robin Benedetti, Indrani Bhattacharyya +63
High-yield inertial fusion offers a transformative path to affordable clean firm power and advanced defense capabilities. Recent milestones at large facilities, particularly the Na…
Pure Tensor Program Rewriting via Access Patterns (Representation Pearl)
Gus Henry Smith, Andrew Liu, Steven Lyubomirsky +5
Tensor kernels in machine learning (ML) often correspond to pure mathematical expressions, making term rewriting an attractive strategy for optimization and mapping to specialized…
Validation of FLASH for magnetically driven inertial confinement fusion target design
C. Leland Ellison, Jonathan Carroll-Nellenback, Chiatai Chen +20
FLASH is a widely available radiation magnetohydrodynamics code used for astrophysics, laboratory plasma science, high energy density physics, and inertial confinement fusion. Incr…
Eliminating radiative losses in long-range exciton transport
Scott Davidson, Felix A. Pollock, Erik M. Gauger
We demonstrate that it is possible to effectively eliminate radiative losses during excitonic energy transport in systems with an intrinsic energy gradient. By considering chain-li…
Principles underlying efficient exciton transport unveiled by information-geometric analysis
Scott Davidson, Felix A. Pollock, Erik M. Gauger
Adapting techniques from the field of information geometry, we show that open quantum system models of Frenkel exciton transport, a prevalent process in photosynthetic networks, be…