Welcome to the Quantum Spin Lab in the Department of Physics and Astronomy at Dartmouth College. We are an experimental research group working at the interface of quantum information processing and condensed matter physics. Our laboratory develops and uses magnetic resonance methods to control and characterize the quantum dynamics of solid state spin systems. Our experiments utilize a variety of techniques including DC, radiofrequency and microwave electronics and cryogenics. We have a number of undergraduate and graduate students working together on a variety of projects. You can find out more about the specific projects under the research tab.
We are actively looking for talented graduate students and postdocs to join the group. Please contact Professor Ramanathan if you are interested!
Recent Lab Highlights
Fall 2024
- Sekhar’s News and Views article Universal dynamics exposed by interaction quenches is published in Nature Physics.
- Alexander Almanza (’27), Jack Bonneau (’27), Tunmay Gerg (’25) and Adam Tibbs (’25) join the group.
Summer 2024
- James Logan successfully defends his PhD Thesis Proposal. Congratulations James!
- James, Margaret and Sekhar travel to Copper Mountain Colorado for the Rocky Mountain Conference on Magnetic Resonance. It’s the 80th birthday of electron paramagnetic resonance! We used the demo NV center setup designed and built by Ada and Mrithula for a tutorial session at the conference.
- Ahmed Al Sunbati (’27) joins the group.
Spring 2024
- Madhu defends her Masters thesis – Reinforcement Learning for Hamiltonian Engineering of Dipolar Coupled Spin Systems!
- Congratulations to Margaret and Madhu who will be joining the City University of New York and Delft University respectively for their PhDs!
- Asif Equbal’s paper on Dipolar Order Induced Electron Spin Hyperpolarization is published in the Journal of Physical Chemistry Letters. Collaborative work with Asif and Songi Han.
- Kent Koehler (’25) joins the group.
- Ada is awarded a UGAR off-term research grant for Summer 2024.
- Congratulations to Divik on being awarded a Stamps Scholarship!
Winter 2024
- Ethan successfully defended his PhD Thesis! Congratulations Dr. Williams! All the best in your postdoc at the Fu lab in Washington.
- We will be presenting at the 2024 APS March Meeting in Minneapolis.
Andrew Cupo: T14.00013 Preparation of Topological Floquet States by Quantum Optimal Control Theory
Ilija Nikolov: D10.00010 Novel Multi-modal Spectroscopy Probe of Emergent Quanutm Order in Materials
Madhumati Seetharaman: S50.00004 Reinforcement Learning for Hamiltonian Engineering of Dipolar Coupled Spin Systems
Ethan Williams: Q46.00011 Decoupling magnetic dipolar interactions between electron spins in diamond - WISP interns Ada Praun-Petrovic (’27) and Mrithula Saravan (’27) join the group.
Fall 2023
- Ethan’s manuscript Quantifying the magnetic noise power spectrum for ensembles of P1 and NV centers in diamond is on the arXiv. Learn how to quantify the magnetic noise spectra seen by P1 and NV centers in diamond at different magnetic fields using CPMG dynamical decoupling.
- More DNP and high-field pulsed EPR experiments! Santiago Bussandri’s paper P1 center electron spin clusters are prevalent in type Ib diamond is on the arXiv and has been published in JACS. Collaborative work with Songi Han, Asif Equbal, Daphna Shimon and Susumu Takahashi.
- Anantha’s paper Machine-learning-assisted determination of electronic correlations from magnetic resonance is published in Physical Review Research.
- Margaret Hubble (’21) joins the group as a research assistant working on DNP.
See the News Archive here