Title: NIST Develops Parallelized Nanostructure Modeling Code for Quantum Computing Applications
Summary:
The National Institute of Standards and Technology (NIST) has developed a parallelized nanostructure modeling code that enables accurate computation of atomic positions and orbitals in arbitrary nanostructures. This code is particularly useful for modeling quantum dots, which contain up to a million atoms and are essential components in quantum computing and nanophotonics applications.
Key points:
1. The code uses the tight-binding model based on the Linear Combination of Atomic Orbitals (LCAO) method for accurate atomistic theory of nanostructures.
2. Parallelization is achieved by dividing the structure into layers and using PARPACK for solving the Hamiltonian equation.
3. The code has been tested on the NIST Cluster of 500MHz Pentium III processors, showing a parallelizable portion of almost 83%.
4. Applications include advanced semiconductor lasers, detectors, single photon sources and detectors, biosensors, and nanoarchitectures for quantum coherent technologies.
The development of this parallelized nanostructure modeling code represents a significant advancement in the field of quantum computing, enabling more accurate and efficient simulation of quantum dot systems and their applications in various nanotechnology fields.
Source: https://www.nist.gov/itl/math/nanostructure-modeling
Keywords: Quantum, Nanosystems, Atomic, Orbitals, Metrology
