9 papers
A Polynomial-Scaling PDE Solver with Entanglement-Basis Tensor Networks
Abhijatmedhi Chotrattanapituk, Michael J. Landry, Chu-Liang Fu +1
We develop a finite element method (FEM) for partial differential equation (PDE) solver based on the entanglement-basis representation introduced in our companion work. By lifting…
Tensor-Network Finite Elements for Analytic Operator Equations
Abhijatmedhi Chotrattanapituk, Michael J. Landry, Chu-Liang Fu +1
Operator equations (OEs) underpin quantitative modeling across science and engineering. Finite-element (FE) methods discretize continuous OEs into finite-dimensional algebraic syst…
Quantum Theory of Functionally Graded Materials
Michael J. Landry, Ryotaro Okabe, Chuliang Fu +1
Functionally graded materials (FGMs) are composites whose composition or microstructure varies continuously in space, producing position-dependent mechanical and functional propert…
Chimeric states of matter: Meissner effect without superconductivity
Michael J Landry, Mingda Li
Symmetry is central to how we classify phases of matter: solids break spatial translations, superfluids break particle-number conservation, and superconductors "break" gauge symmet…
Reinforcement learning-guided optimization of critical current in high-temperature superconductors
Mouyang Cheng, Qiwei Wan, Bowen Yu +3
High-temperature superconductors are essential for next-generation energy and quantum technologies, yet their performance is often limited by the critical current density (),…
Theory of the Photomolecular Effect
Michael J. Landry, Chuliang Fu, James H. Zhang +3
It is well-known that water in both liquid and vapor phases exhibits exceptionally weak absorption of light in the visible range. Recent experiments, however, have demonstrated tha…
Quantum Theory of X-ray Photon Correlation Spectroscopy
Phum Siriviboon, Chu-Liang Fu, Michael Landry +4
Characterizing quantum materials is essential for understanding their microscopic interactions and advancing quantum technology. X-ray photon correlation spectroscopy (XPCS) with c…
Anomalous Neutron Nuclear-Magnetic Interference Spectroscopy
Chuliang Fu, Phum Siriviboon, Artittaya Boonkird +4
The electron-phonon interaction plays a critical role in materials electrical, thermal, optical, and superconducting properties. However, measuring the phonon mode-resolved electro…
Active actions: effective field theory for active nematics
Michael J. Landry
Active matter consumes energy from the environment and transforms it into mechanical work. Notable examples from biology include cell division, bacterial swarms, and muscle contrac…