Chunhui Du - Harnessing Nitrogen Vacancy Centers in Diamond for Next-Generation Quantum Science and Technology

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August 27, 2021
3:30PM - 4:30PM
Location
Physics Research Building 4138 and online

Date Range
Add to Calendar 2021-08-27 15:30:00 2021-08-27 16:30:00 Chunhui Du - Harnessing Nitrogen Vacancy Centers in Diamond for Next-Generation Quantum Science and Technology       Series Title: Ultrafast Magnetic Materials   Title: Harnessing Nitrogen Vacancy Centers in Diamond for Next-Generation Quantum Science and Technology   Chunhui Du, Department of Physics, University of California, San Diego   Abstract: Advanced quantum systems are integral to both scientific research and modern technology enabling a wide range of emerging applications. Nitrogen vacancy (NV) centers, optically active atomic defects in diamond, are directly relevant in this context due to their single-spin sensitivity and remarkable functionality over a broad temperature range. Many of these advantages derive from their quantum-mechanical nature of NV centers that are endowed by excellent quantum coherence, controllable entanglement, and high fidelity of operations, enabling opportunities for outperforming their classical counterpart. In this talk, I will present our recent efforts on developing NV-based quantum sensing and imaging techniques and their potential to address the challenges in both condensed matter physics and quantum science and technologies. Specifically, we have achieved: 1) electrical control of coherent spin rotations of NV spin qubits in NV-magnon based hybrid systems, 2) nanoscale imaging of magnetic flux and magnetization of a topological superconductor by NV wide-field microscopy, and 3) local non-invasive measurements of thermal environment of Mott insulators by NV centers. Our results illustrate the unique capability enabled by NV centers in exploring the exotic spin, heat, and charge transport in emergent quantum materials. The demonstrated coupling between NV centers and magnons in hybrid quantum devices further points to the possibility to establish macroscale entanglement between distant spin qubits and paves the way for developing transformative NV-based quantum computer.   Join Zoom Meeting https://osu.zoom.us/j/94478022372?pwd=dGR6WTdkWEltekZGZUJ2TmRGVEYrUT09 Meeting ID: 944 7802 2372 Password: 793204     More about Dr. Du: EDUCATION 2015 Ph.D. in Physics, The Ohio State University, Columbus, OH. 2010 B.S. in Physics, East China Normal University, Shanghai, China.   HONORS AND AWARDS National Science Foundation CAREER Award. Air Force Office of Scientific Research Young Investigator Award. Harold and Suzy Ticho Endowed Faculty Fellowship, University of California, San Diego.   RESEARCH EXPERIENCE 2019-present, Assistant Professor, Department of Physics, University of California, San Diego. 2015-2019, Postdoctoral Fellow, Department of Physics, Harvard University.     SUBSCRIBE to our email list here.   If you require an accommodation such as live captioning or interpretation to participate in this event, please contact Jessi Middleton at middleton.85@osu.edu. Requests made five business day prior to the event will generally allow us to provide seamless access, but the university will make every effort to meet requests made after this date. Physics Research Building 4138 and online Department of Physics physics@osu.edu America/New_York public
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Series Title: Ultrafast Magnetic Materials

 

Title: Harnessing Nitrogen Vacancy Centers in Diamond for Next-Generation Quantum Science and Technology

 

Chunhui Du, Department of Physics, University of California, San Diego

 

Chunhui Du

Abstract: Advanced quantum systems are integral to both scientific research and modern technology enabling a wide range of emerging applications. Nitrogen vacancy (NV) centers, optically active atomic defects in diamond, are directly relevant in this context due to their single-spin sensitivity and remarkable functionality over a broad temperature range. Many of these advantages derive from their quantum-mechanical nature of NV centers that are endowed by excellent quantum coherence, controllable entanglement, and high fidelity of operations, enabling opportunities for outperforming their classical counterpart. In this talk, I will present our recent efforts on developing NV-based quantum sensing and imaging techniques and their potential to address the challenges in both condensed matter physics and quantum science and technologies. Specifically, we have achieved: 1) electrical control of coherent spin rotations of NV spin qubits in NV-magnon based hybrid systems, 2) nanoscale imaging of magnetic flux and magnetization of a topological superconductor by NV wide-field microscopy, and 3) local non-invasive measurements of thermal environment of Mott insulators by NV centers. Our results illustrate the unique capability enabled by NV centers in exploring the exotic spin, heat, and charge transport in emergent quantum materials. The demonstrated coupling between NV centers and magnons in hybrid quantum devices further points to the possibility to establish macroscale entanglement between distant spin qubits and paves the way for developing transformative NV-based quantum computer.

 

Join Zoom Meeting
https://osu.zoom.us/j/94478022372?pwd=dGR6WTdkWEltekZGZUJ2TmRGVEYrUT09

Meeting ID: 944 7802 2372
Password: 793204

 

 

More about Dr. Du:

EDUCATION

2015 Ph.D. in Physics, The Ohio State University, Columbus, OH.

2010 B.S. in Physics, East China Normal University, Shanghai, China.

 

HONORS AND AWARDS

National Science Foundation CAREER Award.

Air Force Office of Scientific Research Young Investigator Award.

Harold and Suzy Ticho Endowed Faculty Fellowship, University of California, San Diego.

 

RESEARCH EXPERIENCE

2019-present, Assistant Professor, Department of Physics, University of California, San Diego.

2015-2019, Postdoctoral Fellow, Department of Physics, Harvard University.

 

 

SUBSCRIBE to our email list here.

 

If you require an accommodation such as live captioning or interpretation to participate in this event, please contact Jessi Middleton at middleton.85@osu.edu. Requests made five business day prior to the event will generally allow us to provide seamless access, but the university will make every effort to meet requests made after this date.