Seminar: Dr. Sam Carter | University of Maryland, College Park
In-Person PHYS 401
Location
Physics : 401
Date & Time
February 4, 2026, 11:00 am – 12:00 pm
Description
TITLE: "Spins in silicon and silicon carbide for quantum information science”
ABSTRACT: Spin states are attractive in quantum information science for quantum bits and quantum sensing, due to a weak coupling to the environment that typically leads to long coherence times. Solid state spin systems can be particularly attractive for compact platforms and for scaling up to many quantum bits. I will discuss research at the Laboratory for Physical Sciences on two semiconductor spin systems: point defects in silicon carbide and electrically-defined quantum dots in silicon. Defects in SiC are being investigated for quantum sensing, with an emphasis on microscopic imaging of magnetic fields. Spin qubits in Si/SiGe quantum dots are being investigated for quantum computing. I will introduce these systems, which have quite different length scales, operating temperatures, and control methods, and I will present some recent research results and plans.
ABSTRACT: Spin states are attractive in quantum information science for quantum bits and quantum sensing, due to a weak coupling to the environment that typically leads to long coherence times. Solid state spin systems can be particularly attractive for compact platforms and for scaling up to many quantum bits. I will discuss research at the Laboratory for Physical Sciences on two semiconductor spin systems: point defects in silicon carbide and electrically-defined quantum dots in silicon. Defects in SiC are being investigated for quantum sensing, with an emphasis on microscopic imaging of magnetic fields. Spin qubits in Si/SiGe quantum dots are being investigated for quantum computing. I will introduce these systems, which have quite different length scales, operating temperatures, and control methods, and I will present some recent research results and plans.
