Latest Research
Full-volume aberration-space holography
Simultaneous, diffraction-limited control of multiple optical beams is crucial for applications ranging from lithography to optogenetics, deep tissue imaging, and tweezer-based manipulation of cells, particles, or atoms.
Optics
Simplified, Physically Motivated, and Universally Applicable Range-Separation Tuning
Range-separated hybrid functionals with ``ionization energy'' and/or ``optimal tuning'' of the screening parameter have proven to be among the most practical and accurate approaches for describing excited-state properties across a wide range of systems, including condensed matter.
Chemical Physics
Quantum Process Tomography with Digital Twins of Error Matrices
Accurate and robust quantum process tomography (QPT) is crucial for verifying quantum gates and diagnosing implementation faults in experiments aimed at building universal quantum computers.
Quantum Physics
Chern-Simons potentials of higher-dimensional Pontryagin densities
We develop a novel and systematic approach to computing the Chern-Simons potentials given the Pontryagin densities in arbitrary even dimensions $ D\geq4 $.
Mathematical Physics General Relativity and Quantum Cosmology High Energy Physics - Theory Differential Geometry Geometric Topology Mathematical Physics
PtyRAD: A High-performance and Flexible Ptychographic Reconstruction Framework with Automatic Differentiation
chiahao3/ptyrad
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Electron ptychography has recently achieved unprecedented resolution, offering valuable insights across diverse material systems, including in three dimensions.
Materials Science Optics
Digitalizing Wick's theorem
Wick's theorem is a cornerstone of perturbative quantum field theory.
High Energy Physics - Theory Logic in Computer Science
Simulating many-engine spacecraft: Exceeding 100 trillion grid points via information geometric regularization and the MFC flow solver
This work proposes a method and optimized implementation for exascale simulations of high-speed compressible fluid flows, enabling the simulation of multi-engine rocket craft at an unprecedented scale.
Computational Physics Computational Engineering, Finance, and Science Fluid Dynamics
RGE solver for the complete dim-7 SMEFT interactions and its application to $0νββ$ decay
We present an automatic renormalization group equations (RGEs) solver, D7RGESolver, designed for the precise numerical solution of one-loop RGEs of dimension-7 (dim-7) operators within the standard model effective field theory (SMEFT).
High Energy Physics - Phenomenology
Algorithm for finding local integrals of motion in quantum lattice models in the thermodynamic limit
The existence of LIOMs and their structure can also be studied via numerical methods, which, however, involve exact diagonalization of Hamiltonians, posing a bottleneck for such studies.
Strongly Correlated Electrons Quantum Physics
Reconstructing Real-Valued Quantum States
Quantum tomography is a crucial tool for characterizing quantum states and devices and estimating nonlinear properties of the systems.
Quantum Physics
