Xiaofeng Qian (xqian6)

Xiaofeng Qian

Assistant Professor

Charles V. Schaefer, Jr. School of Engineering and Science

Department of Physics

Education

  • PhD (2014) University of Rochester (Quantum Physics)

Research

Quantum superresolution: passive source superresolution; quantum Fisher information; astrophysical imaging (galaxy, binary stars); biomedical imaging, machine learning.

Quantum simulation with classical optics: classical entanglement; optical polarization; spatial and temporal coherence; simulating quantum dynamics; simulating quantum computation algorithms.

Quantum foundation and quantum information: wave-particle duality; Bell inequality; single-photon coherence; multiparty entanglement; entanglement sharing; geometric approach to resource theory; quantum multi-tasking.

Quantum magnonics: cavity magnonics; cavity QED; Purcell effect; open quantum systems; macroscopic entanglement.

General Information

Dr. Xiaofeng Qian received his Ph.D. in Quantum Optics from the University of Rochester. Following his doctoral studies, he served as a Research Associate at The Institute of Optics. In 2019, Dr. Qian joined the Physics Faculty at Stevens Institute of Technology as an Assistant Professor. His research encompasses both theoretical and experimental aspects of quantum physics and coherence optics. Dr. Qian has made significant contributions to the emerging field of quantum-inspired coherence optics, garnering attention from professional organizations, industry magazines, and science news websites. Notably, his work on wave-particle duality was honored as one of the top 10 breakthroughs in physics of 2021 by Physics World (IOP publishing, UK). Additionally, his research on the unexpected optics-mechanics connection was recognized among the 10 most popular physics stories of 2023 by Physics World.

Experience

Assistant Professor, August 2019 - Present; Department of Physics, Stevens Institute of Technology

Research Associate, July 2015 - August 2019; The Institute of Optics, University of Rochester

Instructor/Fellow, July 2014 - June 2015; The Institute of Optics, University of Rochester

Visiting Scientist, May - June 2014; Department of Physics and Astronomy, University of Rochester

Institutional Service

  • Physics Undergraduate Curriculum Committee Member
  • Physics Undergraduate Enrollment and Recruitment Committee Member
  • Physics Departmental Seminars/Colloquium Chair
  • Physics Graduate Student Qualifying Committee Chair
  • Physics Undergraduate Enrollment and Recruitment Committee Member
  • Tenure track position search committee Member
  • PHD defense Committee Member
  • Physics Graduate Student Qualifying Committee Chair
  • Physics Departmental Seminars/Colloquium Chair
  • faculty advisory council (SES) Member
  • Physics Graduate Curriculum Committee Member
  • Physics Departmental Seminars/Colloquium Chair
  • Quantum Snack Time (Talks & Journal Clubs for students) Chair
  • Institute Graduate Curriculum Committee (GCC) Member
  • Physics Graduate Student Qualifying Committee Member
  • Physics Department Graduate Curriculum Committee Member
  • Physics Graduate Student Qualifying Committee Member
  • Institute Graduate Curriculum Committee (GCC) Member
  • Quantum Snack Time Events Chair
  • Quantum Lunch Seminar Series Chair

Professional Service

  • Photonics Topical Editor
  • Photonics Topical Editor
  • IEEE The 2nd Quantum Science and Engineering Education Conference (QSEEC) 2023 Program Committee
  • Quantum Control Information and Computing workshop Co-organizer Committee

Appointments

Assistant Professor, Department of Physics, Stevens Institute of Technology

Honors and Awards

Top 10 Breakthroughs in Physics of 2021, by Physics World

10 most popular physics stories of 2023, by Physics World

Professional Societies

  • OSA – Optica Member
  • APS – American Physical Society Member

Grants, Contracts and Funds

(PI) Passive Source Quantum Superresolution Assisted by Physics-Informed Robust Deep Learning, NSF (Amount: $424,999.00; Award Number: 2514953), 2025-2028.

(Co-PI) Quantum & Artificial Intelligence Technologies for Next Generation Armament Systems, DOD (Amount: $14,979,104.00; Contract No: DoD W15QKN-24-C-0004), 2023-2028.

(PI) LEAPS-MPS: Quantum simulation with classical optics, NSF (Amount: $249,995.00; Award Number: 2316878), 2023-2026.

(PI) Optical Engineering Training for Optical Quantum Simulation, The Bleckman Foundation Fund, (Amount: $10,000.00), 2024-2025.

(Co-PI) ART020: Quantum Technologies for Armament Systems, DOD (Amount: $6,887,677.00; Contract No: DoD W15QKN-18-D-0040), 2021-2023

Selected Publications

Conference Proceeding

  1. Herr, G.; Qian, X. (2025). Optimizing Shor’s Algorithm for N=15 and 21. Conference on Lasers and Electro-Optics (CLEO) 2025 (pp. FTh4D.7). Optica Publishing.
  2. Sajia, A.; Benzimoun, B.; Khatiwada, P.; Zhao, G.; Curley, R.; Qian, X. (2024). AI-assisted superresolution of two practical point sources. Frontiers in Optics & Laser Science 2024 (pp. JW4A.9). Optica Publishing.
  3. Zhao, G.; Sajia, A.; Khatiwada, P.; Qian, X. (2024). Experimental exploration of quantitative optics-mechanics connection. Frontiers in Optics & Laser Science 2024 (pp. JTu5A.33). Optica Publishing.
  4. Sajia, A.; Zhao, G.; Khatiwada, P.; Benzimoun, .; Qian, X. (2024). Optimal superresolution of two point sources via Schmidt basis. Frontiers in Optics & Laser Science 2024 (pp. JW4A.10). Optica Publishing.
  5. Khatiwada, P.; Yu, D.; Yu, E.; Qian, X. (2024). Simulating Quantum State Revival with Paraxial Beam Propagation. Frontiers in Optics & Laser Science 2024 (pp. JW4A.11). Optica Publishing.
  6. Benzimoun, B.; Sajia, A.; Qian, X. (2024). Superresolution of three point-sources assisted with machine learning. Frontiers in Optics & Laser Science 2024 (pp. JTu4A.47). Optica Publishing.
  7. Qian, X. (2021). Teaching Quantum Concepts with Classical Optics. Education and Training in Optics and Photonics (pp. W2B. 5). Optical Society of America.
  8. Qian, X.; Konthasinghe, K.; Manikandan, S.; Spiecker, D.; Vamivakas, A.; Eberly, J. (2020). Wave-Particle Duality Controlled by Single-Photon Self-Entanglement (pp. paper FTh4D.7). Washington D.C.: Conference on Lasers and Electro-Optics, OSA Technical Digest (Optical Society of America, 2020).
  9. Lewalle, P.; Elouard, C.; Manikandan, S. K.; Qian, X.; Eberly, J. H.; Jordan, A. N. (2019). Remote Two--Qubit Entanglement by Joint Homodyne Detection of Fluorescence (pp. W6A--22). Conference on Coherence and Quantum Optics, Optical Society of America.
  10. Qian, X. (2019). Restriction and Sharing of “Polarization” Coherences in an Optical Beam (pp. Tu2A--2). Conference on Coherence and Quantum Optics, Optical Society of America.

Journal Article

  1. Sajia, A.; Qian, X. (2025). Enhanced superresolution by entanglement of the unified quantum wave function. Physical Review Research (3 ed., vol. 7, pp. 033219). American Physical Society (APS).
    https://doi.org/10.1103/pt7n-5gmr.
  2. Khatiwada, P.; Qian, X. (2025). Wave-particle duality ellipse and application in single-photon imaging. Phys. Rev. Research (vol. 7, pp. 033033). APS.
  3. Zhao, G.; Wang, Y.; Qian, X. (2025). Theory of the magnon Purcell effect in a cavity magnonic system. Phys. Rev. B (vol. 111, pp. 214428). APS.
  4. Yang, Y.; Liu, X.; Jiang, J.; Chen, H.; Yang, X.; Qian, X.; Fei, S.; Luo, M. (2025). Photonic Energy-Coherence Theorem and Experimental Validations. Laser & Photonics Reviews (vol. 19, pp. e00326). Wiley.
  5. Luo, D.; Qian, X.; Yu, T. (2024). Optically mediated remote entanglement generation in magnon-cavity systems. Physical Review A (vol. 109, pp. 012611).
  6. Qian, X.; Izadi, M. (2023). Bridging coherence optics and classical mechanics: A generic light polarization-entanglement complementary relation. Physical Review Research (vol. 5, pp. 033110).
  7. Sajia, A.; Qian, X. (2022). Super-resolution of two unbalanced point sources assisted by the entangled partner. Physical Review Research (vol. 4, pp. 033244). APS.
  8. Zhao, G.; Wang, Y.; Qian, X. (2021). Driven-dissipative Quantum Dynamics in Cavity Magnon-Polariton System. Physical Review B (vol. 104 , pp. 134423). APS.
  9. Lewalle, P.; Elouard, C.; Manikandan, S.; Qian, X.; Eberly, J. H.; Jordan, A. (2021). Entanglement of a pair of quantum emitters via continuous fluorescence measurements: a tutorial. Advances in Optics and Photonics (vol. 13, pp. 517).
  10. Wadood, S. A.; Liang, K.; Zhou, Y.; Yang, J.; Alonso, M.; Qian, X.; Maholtra, T.; Rafsanjani, S.; Jordan, A.; Boyd, R. W.; Vamivakas, A. N. (2021). Experimental demonstration of superresolution of partially coherent light sources using parity sorting. Optics Express (pp. 22034).
  11. Luo, D.; Qian, X.; Yu, T. (2021). Nonlocal magnon entanglement generation in coupled hybrid cavity systems. Optics Letters (5 ed., vol. 46, pp. 1073). Optica Publishing Group.
    https://doi.org/10.1364/ol.414975.
  12. Qian, X.; Wadood, S.; Vamivakas, N.; Eberly, J. (2020). Quantification and observation of genuine three-party coherence: A solution based on classical optics. Physical Review A (vol. 102, pp. 062424). Physical Review A.
  13. Qian, X.; Agarwal, G. (2020). Quantum duality: A source point of view. Physical Review Research (1 ed., vol. 2, pp. 012031). Physical Review Research.
  14. Qian, X.; Konthasinghe, K.; Manikandan, S.; Spiecker, D.; Vamivakas, A.; Eberly, J. (2020). Turning off quantum duality. Physical Review Research (1 ed., vol. 2, pp. 012016). Physical Review Research.
  15. Qian, X.; Vamivakas, N.; Eberly, J. (2018). Entanglement Limits Duality and Vice Versa. Optica (vol. 5, pp. 942). Optica .
  16. Qian, X.; Alonso, M.; Eberly, J. (2018). Entanglement polygon inequality in qubit systems. New Journal of Physics (vol. 20, pp. 063012). New Journal of Physics.
  17. Qian, X.; Vamivakas, N.; Eberly, J. (2017). Emerging Connections: Classical and Quantum Optics. Optics and Photonics News (vol. 28, pp. 34). Optics and Photonics News.
  18. Eberly, J.; Qian, X.; Vamivakas, N. (2017). Polarization Coherence Theorem. Optica (vol. 4, pp. 1113). Optica.
  19. Qian, X.; Malhotra, T.; Vamivakas, N.; Eberly, J. (2016). Coherence Constraints and the Last Hidden Optical Coherence. Physical Review Letters (vol. 117, pp. 153901). Physical Review Letters.
  20. Qian, X.; Little, B.; Howell, J.; Eberly, J. (2015). Shifting the quantum-classical boundary: theory and experiment for statistically classical optical fields. Optica (vol. 2, pp. 611). Optica.

Courses

PEP543: Introduction to Quantum Engineering
PEP642: Mechanics
PEP242: Modern Physics
PEP369: Introduction to Quantum Physics
PEP112: Electricity and Magnetism (E&M)
PEP187: Seminar in Physical Science I
PEP124: Physics for Business and Technology II
PEP557: Quantum Information and Quantum Computation