Dartmouth Events

Physics & Astronomy Colloquium - Dr. Peter Maurer, University of Chicago

Title: "Interfacing Biomolecules with Coherent Quantum Sensors"

Friday, April 14, 2023
3:30pm – 4:30pm
Wilder 104 and Zoom
Intended Audience(s): Public
Categories: Arts and Sciences, Lectures & Seminars

Abstract: Quantum metrology enables some of the world's most sensitive measurements. When applied to biophysical systems, diamond-based quantum sensors have the potential to probe processes that cannot be accessed by conventional technologies. Examples of such processes range from cancer research to neuroscience to developmental biology. However, interfacing coherent qubit sensors with fragile biological target systems has remained an outstanding challenge that has severely limited applications. In this talk, I will discuss a novel approach that combines single-molecule biophysics technology with quantum engineering to interface intact biomolecules on a diamond quantum sensor without impacting qubit coherence and bio-functionality. In a second part, I will discuss our recent work on engineering highly coherent quantum sensors based on diamond nanocrystal. Such nanosensors can readily be taken up by cells and integrated into intact organisms. However, coherence in these nanocrystal sensors is limited by surface noise, which severely reduces the sensor’s sensitivity. In our work we developed a new approach to engineer spin coherence in core-shell nanostructures which leads to a 50-fold improvement in qubit sensitivity. Finally, potential future applications of quantum sensing to biophysics and diagnostics will be discussed. 


Hosted by Professor Chandrasekhar Ramanathan


Please click the link below to join the webinar:

Email for password: physics.department@dartmouth.edu



For more information, contact:
Tressena Manning

Events are free and open to the public unless otherwise noted.