Title: NIST Researchers Study Quantum Interactions in Semiconductor Nanostructures
NIST scientists are investigating how light interacts with semiconductor-based nanostructures to extend quantum concepts like entanglement and coherence from atomic physics to solid-state systems. Their research focuses on artificial atoms like InAs quantum dots (QDs) embedded in GaAs semiconductors, which have atomic-like properties but contain thousands of atoms.
The team is developing optical microcavities to study cavity quantum electrodynamics (cavity QED) in these semiconductor systems. They use molecular-beam epitaxy (MBE) to create the semiconductor material and NIST’s nanofabrication facilities to build the microstructures. Collaborators include researchers from John Lawall’s team at NIST and Mohammad Hafezi’s group at the Joint Quantum Institute and University of Maryland.
Key research topics include:
– Near-resonant single QD scattering
– Strong and weak coupling cavity QED
– Single-state QD lasing
– Single and entangled discrete photon sources
The research aims to develop new quantum technologies based on semiconductor nanostructures, with potential applications in quantum computing, quantum communication, and quantum sensing.
Source: https://www.nist.gov/programs-projects/light-matter-interactions-semiconductor-nanostructures
Keywords: cavity, entanglement, quantum, states
