News Archive

Fall 2022

• Sekhar presented a tutorial on dynamic nuclear polarization of carbon-13 nuclei in diamond via substitutional nitrogen (or P1) centers at the Global NMR Discussion Meetings in December.

• Anantha Rao’s paper on  Machine learning assisted determination of electronic correlations from magnetic resonance is on the arXiv.  Collaborative work with Professor Vesna Mitrovic at Brown University
• Ethan wins the 2022 Guarini Teaching Award which recognizes the efforts and dedication of a graduate teaching assistant who demonstrates excellence in their role as an educator.  Congratulations Ethan!
• Ilija’s paper Spin Squeezing as a Probe of Emergent Quantum Orders is accepted as a Japanese Physical Society Conference Proceedings (29th International Conference on Low Temperature Physics).  Collaborative work with Professor Vesna Mitrovic at Brown University
• Our book chapter NMR experimental study of out-of-equilibrium spin models (with MIT Collaborators Paola Cappellaro and Pai Peng) in Entanglement in Spin Chains – From Theory to Quantum Technology Applications, Eds. A. Bayat, S. Bose, H. Johannesson has been published.
• Daphna’s paper Room Temperature DNP of Diamond Powder Using Frequency Modulation is published in Solid State Nuclear Magnetic Resonance.  Nice work from Daphna, Kelly and Linta showing how chirped millimeter wave pulses influence different DNP mechanisms.
• Daphna’s paper Large Room Temperature Bulk DNP of 13C via P1 Centers in Diamond is published in the Journal of Physical Chemistry C.  See why diamonds are a spin’s best friend.  Kudos to Daphna, Kelly, Linta and Ethan as well as our collaborators in the Susumu Takahashi lab at the University of Southern California.  Check out the cover!
• Sophomores Bradyn Quintard (’25) and Melody Tsutsumi Cruz (’25) join the group.

Summer 2022

• Stephen Carr’s paper Multi-modal spectroscopy of order parameter distributions is on the arXiv.  Learn how NMR can be used to measure the distribution of quadrupolar interactions in a system, which in turn can elucidate changes in Hamiltonian parameters and symmetry near a phase transition.
• Sekhar’s Wired 5 Levels Episode on Quantum Sensing is out.

• We’re off to present results at the Quantum Science Gordon Conference (Linta and Andrew) and the Rocky Mountain Conference on Magnetic Resonance (Ethan and Sekhar).
• Pai and Xiaoyang’s paper on Deep reinforcement learning for quantum Hamiltonian engineering is published in Physical Review Applied.  Learn how to use DRL to design pulse sequences to average out chemical shifts and dipolar couplings – collaborative work with Professor Paola Cappellaro at MIT
• Stephen Carr’s paper Signatures of electronic correlations and spin-susceptibility anisotropy in nuclear magnetic resonance is published as a Letter in in Physical Review B. See how NMR signals can report on underlying electronic correlations in quantum materials.  Collaborative work with Professor Vesna Mitrovic at Brown University.
• Our new helium circulation system for low- and variable-temperature experiments comes online.
• Sophomore Tunmay Garg (’25) joins the group.
• Dr. Bhargava Thyagarajan joins the group as a postdoc.
• Our NSF Proposal High-field DNP via substitutional nitrogen impurities in diamond is funded.

• Our SIAA Proposal Quantum sensing at high magnetic fields via defects in diamond is funded

Spring 2022

• Owen (Hamiltonian Engineering of Dipolar Coupled Spin Systems Using Reinforcement Learning) and Chris (Characterization of Charge Carriers in Graphene Devices) successfully defended their senior theses.
• Owen (U. of Wisconsin, Madison), Chris (Boston College) and Henry (Princeton) are off to graduate school in the fall.
• Katherine Lasonde (’23) joins the group to build an optically-detected magnetic resonance setup to study nitrogen-vacancy centers in diamond.
• Emily, Melody, Kat, Henry, Owen and Chris present their work at the Karen E. Wetterhahn Science Symposium.
• Owen wins third place in the Christopher G. Reed Science Competition and is awarded the 2022 Haseltine Chemistry-Physics Prize.
• Wynter Alford wins a UGAR grant to continue studying how the convergence of the Magnus Series affects the accuracy of Average Hamiltonian Theory.

Winter 2022

• We present a number of papers (both in-person and remotely) at the 2022 APS March Meeting.  Owen and Wynter win Neukom travel grants to attend the conference.
  • Andrew Cupo:  F56.00001 Electronic Transport and Photoemission Fingerprints of Floquet Graphene Antidot Lattices
  • Sekhar Ramanathan: G10.00009 Room temperature hyperpolarization of ¹³C in diamond at 3.34 T
  • Owen Eskandari:  Q38.00005 Hamiltonian Engineering of Dipolar Coupled Spin Systems Using Reinforcement Learning
  • Ethan Williams:  W36.00005 Comparison of dynamical decoupling applied to nitrogen-vacancy (NV) and substitutional nitrogen (P1) centers in diamond at 2.5 GHz
  • Ilija Nikolov:  W72.00006 Novel ways of probing local spin environments in complex materials
  • Wynter Alford:  Y41.00006 Limitations of Average Hamiltonian Theory for Quantum Control
  • Stephen Carr:  Z57.00007 Signatures of electronic correlations and spin-susceptibility anisotropy in nuclear magnetic resonance
• WISP interns Emily Broome (’25) and Melody Tsutsumi (’25) join the lab.

Fall 2021

• Ethan travels to the National High Magnetic Field Laboratory in Tallahassee to run pulsed ESR experiments on phosphorus-doped silicon.
• Daphna’s paper Large Room Temperature Bulk DNP of 13C via P1 Centers in Diamond is submitted.
• Stephen Carr’s paper Signatures of electronic correlations and spin-susceptibility anisotropy in nuclear magnetic resonance is on the arXiv.
• Andrew Cupo’s paper Floquet graphene antidot lattices is published in Physical Review B.  See what happens to the energy bands of an anti-dot lattice – a graphene sheet with a spatially periodic array of holes – that is driven with an oscillating electric field.

Summer 2021

• Ethan presents his work on Identifying noise sources via dynamical decoupling of P1 centers in diamond at the 22nd ISMAR meeting.
• Andrew’s paper Floquet Graphene Antidot Lattices is on the arXiv.   See what happens to a graphene anti-dot lattice – a graphene sheet patterned with a periodic array of holes – when it is driven by a periodic electric field.
• Lihuang’s paper Spectral diffusion of phosphorus donors in silicon at high magnetic field is on the arXiv.  Discover how the coherence time of the donor electron unexpectedly increases in the presence of optical excitation.
• Henry Prestegaard (’22) and Owen Eskandari (’22) join the lab.

Spring 2021

• Will successfully defended his senior thesis Applying Reinforcement Learning to Hamiltonian Engineering.  He was also awarded the 2021 Haseltine Chemistry-Physics Prize
• Chris wins a Wilder Fellowship to continue his work on graphene in the summer.
• Hailey wins a UGAR research grant to continue working on dynamic nuclear polarization of diamond full-time in the summer.
• Noah Schwartz (’24) wins a Junior Scholarship.
• Makayla and Daniel Westphal (’24) win Presidential Scholarships
• WISP interns Hailey Mullen (’24) and Anisia Tiplea (’24) join the lab.

Fall 2020 and Winter 2021

• We presented a number of papers (remotely) at the 2021 APS March Meeting.
  • A38.00003 Enhancement of nuclear spin-spin interactions by collective electronic modes
  • C38.00004 Spin Echo Simulations and Supervised Machine Learning
  • J33.00003 Decoupling dipolar interactions in dense spin ensembles
  • L29.00010 Dynamical decoupling of P1 centers in diamond
  • P33.00001 Deep reinforcement learning for quantum Hamiltonian engineering
  • V44.00014 Spin Squeezing as a Probe of Quantum Materials
  • X32.00006 Using Reinforcement Learning for Quantum Control in Magnetic Resonance
  • X46.00015 Driving Quantum-Confined Massless Dirac Fermions: Floquet Graphene Antidot Lattices
• Pai and Xiaoyang’s paper on Deep reinforcement learning for quantum Hamiltonian engineering is on the arXiv  – collaborative work with Professor Paola Cappellaro at MIT.
• Pai and Chao’s paper is published in Nature Physics!  Collaborative work with Professor Paola Cappellaro at MIT.  See the Lea Santos‘ News and Views article: The quick drive to pseudo-equilibrium
• Chao and Pai’s paper is published in Physical Review B.  Collaborative work with Professor Paola Cappellaro at MIT
• Chris and Makayla win UGAR grants for off-term research
• Sophomore Mitchell Jubeir (’23) wins a Sophomore Scholarship

Winter and Spring 2020

• Linta and Ethan successfully defends their thesis proposals!
• Sophomores Benjamin Alford (’22) and Christopher Candelora (’22) are awarded James E. Freedman Presidential Scholarships for 2020-2021
• Chao and Pai’s paper Prethermal quasiconserved observables in Floquet quantum systems is on the arXiv – collaborative work with Professor Paola Cappellaro at MIT
• Postdoctoral Scholar Dr. Fabio Lingua joins our collaborative EPSCoR team
• Postdoctoral Scholar Dr. Andrew Cupo joins our collaborative EPSCoR team
• Lab Alumna Dr. Daphna Shimon has accepted a faculty position at the Institute of Chemistry at The Hebrew University of Jerusalem.  Daphna will be starting her new position this summer.  Congratulations Daphna!
• Linta Joseph and Ethan Williams win grants from the Quantum Information Science and Engineering Network Triplets Program.  Linta will be collaborating with researchers at IBMQ on improving multi-pulse control for quantum simulation while Ethan will be collaborating with researchers at the National High Field Magnet Laboratory to extend the coherence times of solid-state spin qubits at high magnetic fields
• WISP interns Makayla Dixon (’23) and Sarah McWhirter (’23) join the group

Fall 2019

• Our EPSCoR project Harnessing the Data Revolution for Quantum Leap with Brown and UNH has been funded.  Looking for theory postdocs to work jointly with Professors Dan Rockmore, Lorenza Viola and James Whitfield.  Apply here!
• Pai’s paper Observation of Floquet prethermalization in dipolar spin chains is on the arXiv – collaborative work with Professor Paola Cappellaro at MIT
• Ken and Pai’s paper Emergent prethermalization signatures in out-of-time ordered correlations is published in Physical Review Letters – collaborative work with Professor Paola Cappellaro at MIT
• Our proposal with lab alumnus Dr. Lihuang Zhu wins an Unlock Ideas Award from Lam Research
• Our collaborative work with Dr. Cappellaro is highlighted in Physics Today
• Ashok’s paper on Hyperpolarized T1 relaxometry of nuclear spins in diamond is published in Nature Communications – collaborative work with the University of California, Berkeley
• William Kaufman (’20) joins the group.  His senior thesis will focus on the use of machine learning techniques for Hamiltonian Engineering

Summer 2019

• Daphna presents her work on Room Temperature DNP using P1 centers in Diamond at the 2019 EuroISMAR Conference in Berlin, Germany
• Ken Wei and Pai Peng’s paper Emergent prethermalization signatures in out-of-time ordered correlations is published in Physical Review Letters – collaborative work with Professor Paola Cappellaro at MIT
• Daphna’s paper DNP-NMR of surface protons on silicon particles is published in Solid State NMR in a Special Issue on DNP – collaborative work with Professor Walter Kockenberger’s group at the University of Nottingham and Professor Susumu Takahashi at the University of Southern California

Spring 2019

• Professor Ramanathan is awarded the C Troy Shaver 1969 Fellowship at Dartmouth for the 2019-2020 academic year.
• Tara Gallagher (’19) successfully defends her Senior Honors Thesis Fabrication and Characterization of Graphene Devices.  She wins a Wilder Fellowship to continue working on the project over the summer.

Fall 2018

• Pat’s paper showing silicon isotope mass effect changes to the phosphorus donor hyperfine coupling using optically hyperpolarized NMR is accepted as a Rapid Communication to Physical Review B  – collaborative work with the University of Waterloo
• Lihuang successfully defends his PhD.  Congratulations Dr. Zhu!
• Ashok’s paper on using multiple microwave sweepers to enhance NV-mediated DNP of diamond particles is published in the Proceedings of the National Academy of Sciences – collaborative work with the University of California, Berkeley.
• Daphna presents her work at Hyp18 at the University of Southampton.

​Summer 2018

• Tadeas Uhlir (’19) wins a Neukom Scholar award for Fall 2018.
• Daphna presents her new results using DNP NMR to detect multiple hydrogen species  on the surface of silicon particles at the Rocky Mountain Conference.  Thanks to the SharedEPR network for travel funding!​
• Lihuang travels to the National High Field Magnet Lab in Tallahassee to run high field EPR experiments on phosphorus-doped silicon

Spring 2018

• Kent successfully defended his senior thesis – Entanglement spectra of engineered NMR spin Hamiltonians.  Kent Ueno wins the Haseltine Chemistry-Physics Prize
• Krishan successfully defended his senior thesis – Entanglement metrics for quantum spin chains
• Tara Gallagher (’19) is awarded a research grants for summer 2018.  She will spend part of the summer at Harvard working with alumna Laurel Anderson (’14) learning how to fabricate graphene devices.
• Daphna Shimon is supported by the SharedEPR network to attend BigMag@UCSB – a workshop to explore pulsed magnetic resonance at fields up to 32 T.
• We present 3 talks at the 2018 APS March Meeting in Los Angeles.
  • R21.00009 Dynamic Nuclear Polarization Enhanced NMR of Surface Hydrogen on Silicon Microparticles
  • V21.00005 Optical Dependence of EDMR in Silicon Devices
  • V26.00009 Entanglement spectrum of engineered NMR spin Hamiltonians
• Lihuang receives his Graduate Student Travel Award at the DCMP reception.​​

Winter 2018

• Kent Ueno wins a Neukom Scholar award for Spring 2018
• Ken Wei’s paper on Localization in nuclear spin chains is published in Physical Review Letters – collaborative work with Professor Paola Cappellaro at MIT.  Here’s a news article describing the significance of the work. ​

Fall 2017

• Kipp teaches Physics 47: Optics​
• Postdoc Daphna Shimon joins the group.
• Congratulations to Kent Ueno on his induction to Phi Beta Kappa

Summer 2017​​

• We present 3 posters at ISMAR 2017 in Quebec City
• Jon gives a talk on Fast adiabatic control near the quantum speed limit at the 48th Annual APS-DAMOP Conference in Sacramento
• Lihuang’s paper Optical Dependence of Electrically Detected Magnetic Resonance in Lightly Doped Si:P Devices is published in Physical Review Applied
• ASSURE scholar Maribel Aibarracin joins the group.

​Spring 2017​​

• Mallory successfully defends PhD.  Congratulations Dr. Guy!
• Tara Gallagher (’19) and Johnny Elliott (’19) are awarded James Freedman Presidential Scholarships
• Kent Ueno (’18), Krishan Canzius (’18) are awarded research grants for full-time research during summer 2017
• Kipp teaches his first class – Physics 76: Methods of Experimental Physics – at Dartmouth
• Penny, Linda, Tara, Krishan and Kent present their research at the 26th Wetterhahn Science Symposium

Winter 2017​​

• Mallory’s paper Chemisorption of Water on the Surface of Silicon Microparticles Measured by DNP-Enhanced NMR is accepted in The Journal of Physical Chemistry C.
• WISP interns Runze (Penny) Liu (’20) and Linda Xiao (’20) join the lab

Fall 2016​​

• Ken’s paper probing disorder and localization in nuclear spin chains is on the arXiv – collaborative work with Professor Paola Cappellaro at MIT.
• We were awarded a Global Exploratory/Development Grant to support our ongoing DNP collaboration with Nottingham.
• Stamp’s Scholar Saba Kaboly (’18) joins the lab.
• Mallory’s paper on using DNP to study hydrogen monolayers on silicon particles is on the arXiv.
• Our collaborative proposal with Professor Walter Kockenberger at the University of Nottingham to access the Nottingham high-field DNP MAS system is funded.
• Anisha Ariff (’19) and Tara Gallagher (’19) begin Sophomore Science Scholarships in the lab.

​Summer 2016​​

• Lihuang’s paper on the optical dependence of EDMR in phosphorus-doped silicon is on the arXiv
• Lihuang, Mallory and Kipp present posters at the  Gordon Conference on Defects in Semiconductors
• Jon is named a finalist for the 2016 APS LeRoy Apker Award

Spring 2016

• Jon wins the Haseltine Award for Chemistry-Physics and the Gazzaniga Family Science Award.  One of 8 valedictorians, Jon was chosen to present the valedictory address to the College at Commencement.
• Mallory is named a Gordon F. Hull Fellow for 2016-2017.  She is the 32nd recipient of this award established at the bequest of Gordon Ferrie Hull, Eminent Professor of Physics at Dartmouth from 1899 to 1940.
• Lihuang wins the Physics and Astronomy Chair’s Teaching Award recognizing excellence in laboratory instruction.
• Mallory spent 6 weeks in Nottingham visiting Walter Kockenberger’s lab.
• Jon and Hassan successfully complete their Senior Honors theses.   Jon won a Wilder Fellowship to continue doing research over the summer.  He will join Harvard in the the Fall.  Hassan is doing an internship in Germany over the summer before returning to Dartmouth to complete his BE at Thayer.
• Jon’s paper on Superadiabatic control of quantum operations is published in Physical Review A
• Kent Ueno (’18), Krishan Canzius (’18) and Jesse Feldman-Stein (’18) are awarded James Freedman Presidential Scholarships
• Kipp collects the lab’s first zero-field EDMR spectra​

Winter 2016

• Our helium recovery system is up and running!
• Jon’s paper is on the arXiv
• Jon, Lihuang and Mallory present highlights of their work at the American Physical Society’s March Meeting in Baltimore
  • H45.00012 Optimizing Adiabaticity in NMR
  • A5.00001 Optimizing Frequency-Modulated CW EDMR in silicon
  • A5.00008 Microwave frequency modulation for improving polarization transfer in DNP experiments
• WISP interns Anisha Ariff (’19) and Hang (Christine) Qi (’19) join the lab

Fall 2015

• Mallory’s paper Design and characterization of a W-band system for modulated DNP experiments is published in the Journal of Magnetic Resonance
• Merritt Losert (’17) is awarded a research grant to do full-time research during the 2016 Winter term
• Mallory and Lihuang present their work at the 2015 Joint Fall Meeting of the APS and AAPT New England Sections
• Visiting student Makoto Seto from Keio University joins the lab

Summer 2015

• Postdoctoral Associate Kipp van Schooten joins the lab
• Jon presents a poster at the Gordon Conference on Quantum Control of Light and Matter
• Mallory and Lihuang give talks at the 57th International EPR Symposium of the Rocky Mountain Conference on Magnetic Resonance
• Dan Wisniewski, a graduate student in Walter Kockenberger’s group at Nottingham University, is spending the summer visiting the lab

Spring 2015

• Jon wins the 2015 Neukom Prize for Outstanding Undergraduate Research in Computational Science for his work  Optimizing Adiabatic Quantum Transformations
• Willam Athol (’15) receives the Haseltine Physics Prize.  Will successfully defended his senior thesis – Design and Validation of a Zero-Field and Low-Field EDMR System.  Will was also a Salutatorian for the Class of 2015
• Edrei Chua (’17) and Stylianos Tegas (’17) are accepted as James O. Freedman Presidential Scholar Research Assistants for 2015-2016.
• Michail and Hassan are awarded research grants to do full-time research during the the 2015 Summer term
• Our pilot proposal Magnetic Resonance Characterization of Hyperfine Interactions in Graphene:  Toward Coherent Graphene Spintronics is funded by the Provost’s Office
• Mallory wins one of the best poster awards at Dartmouth’s annual Graduate Poster Session for her poster entitled Using Frequency Modulation to Improve Dynamic Nuclear Polarization at 3.34 T
• We’re featured in Niranjan Ramanand’s article in the Dartmouth Chronicle – The universe of physics and the physics of the universe

Winter 2015

• Mallory’s modulated DNP experiments come online
• Jon wins an Undergraduate Research Award from the Institute for Quantum Computing at the University of Waterloo.  Jon will spend the summer of 2015  working with Professor David Cory.
• Jon is awarded a second research grant to do full-time research in the lab during his Spring 2015 off-term.
• Wisp Interns Julie Lee (’18) and Jessie Anderson (’18) join the lab
• PRL on optical hyperpolarization of phosphorus donors in silicon is published.

Fall 2014

• Test first batch of epi-silicon samples.
• Edrei Chua (’17) is awarded a Sophomore Science Scholarship for Spring 2015 to model controlled phosphorus implantation in silicon.
• Jon Vandermause (’16) is awarded a research grant to do full-time research in his Winter 2015 off-term
• Saad Shamsi joins the lab for 2014-2015.
• Mallory and Michail Athanasakis (’18) start setting up our Langmuir-Blodgett tank.
• Mallory builds a stable DNP setup for liquid nitrogen temperatures.

Summer 2014

• Our NSF proposal on DNP-enhanced NMR surface characterization is funded.
• Year 2 of our DartDose CMCR pilot project Enhancing Low Temperature LOD-ESR study of radiation-induced signals in nails is funded.
• Lihuang measures our first low-field EDMR signals from a phosphorus-doped silicon wafer.

​Spring 2014

• Sarah receives the Haseltine Physics Prize.  Sarah successfully defended her senior thesis – Design and Early Verification of an Electrically Detected Magnetic Resonance (EDMR) System.  Sarah plans to remain at Dartmouth to finish her Masters in Engineering.
• Laurel Anderson (’14) wins first place in the Christoper G. Reed Science Competition and receives the Physics and Astronomy Faculty Prize in Memory of Francis W. Sears.  Laurel successfully defended her senior thesis – Experimental Control of Spin Chain Dynamics.  Laurel will spend next year at Churchill College in Cambridge pursuing an M. Phil in Physics (by research), following which she will begin her PhD at Harvard University.  Laurel was awarded a James B. Reynold’s Scholarship from Dartmouth to pursue her studies in Cambridge.
• Hassan and Jon are accepted as James O. Freedman Presidential Scholar Research Assistants for 2014-2015.
• Sejal and Merrit are awarded Sophomore Science Scholarships for 2014-2015.
• Willam Athol (’15) is awarded a Wilder Fellowship for the Winter term in 2014-2015.
• Mallory measures her first W-band LOD-ESR signals at both room and liquid helium temperatures.

Winter 2014

• Mallory Guy (G) presented her work at the 55th Annual Experimental NMR Conference in Boston in March.
• Merritt Losert (’17), Sejal Shah (’17) and Jonathan Vandermause (’16) join the lab.

Summer 2013

• Alex Meill (’13) successfully defended his senior thesis – Measurement-based quantum computing with NMR – and graduates with High Honors and receives the Haseltine Physics  Prize.  Alex will be joining the PhD program in Physics at the University of California at San Diego in the Fall.
• Chris Zeitler (’12) finishes his research assistantship in the lab.  Chris will be joining the PhD program in Physics at the University of Illinois at Urbana Champaign in the Fall.
• Sarah Pasternak (’14), Hassan Kiani (’16) and Lihuang Zhu (G) join the lab.