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Metastable Dynamical Computing with Energy Landscapes: A Primer
Christian Z. Pratt, Kyle J. Ray, James P. Crutchfield
Smartphones, laptops, and data centers are CMOS-based technologies that ushered our world into the information age of the 21st century. Despite their advantages for scalable comput…
Momentum-Driven Reversible Logic Accelerates Efficient Irreversible Universal Computation
Kuen Wai Tang, Kyle J. Ray, James P. Crutchfield
We present implementations of two physically-embedded computation-universal logical operations using a 2-bit logical unit composed of coupled quantum flux parametrons -- Josephson-…
Optimal Computation from Fluctuation Responses
Jinghao Lyu, Kyle J. Ray, James P. Crutchfield
The energy cost of computation has emerged as a central challenge at the intersection of physics and computer science. Recent advances in statistical physics -- particularly in sto…
Learning Stochastic Thermodynamics Directly from Correlation and Trajectory-Fluctuation Currents
Jinghao Lyu, Kyle J. Ray, James P. Crutchfield
Markedly increased computational power and data acquisition have led to growing interest in data-driven inverse dynamics problems. These seek to answer a fundamental question: What…
Nonequilibrium Thermodynamics of a Superconducting Szilard Engine
Kuen Wai Tang, Kyle J. Ray, James P. Crutchfield
We implement a Szilard engine using a 2-bit logical unit consisting of inductively coupled quantum flux parametrons (QFPs) -- Josephson-junction superconducting circuits with appli…
Entropy Production by Underdamped Langevin Dynamics
Jinghao Lyu, Kyle J. Ray, James P. Crutchfield
Entropy production (EP) is a central quantity in nonequilibrium physics as it monitors energy dissipation, irreversibility, and free energy differences during thermodynamic transfo…