Quantum Information

Prof. Hoi-Kwong Lo
University of Toronto

Dr. Bing Qi

Bing's son


Research Associate
Quantum Communication & Cryptography Lab and Photonics Lab
Dept. of Electrical and Computer Engineering
University of Toronto

Tel: 416-946-0390; Email: bqi@physics.utoronto.ca

Bing Qi received his B.A. in Physics from Nanjing University in 1990, and PhD in Optical Instrument from Dalian University of Technology in1996. From 1996-1999, he was a Postdoc Researcher in Dept. of Computer Science and Technology, Tsinghua University. During1999-2002, he worked as a researcher scientist in the Center for Photonics Technology, Virginia Tech, USA. From 2002-2003, he was a Postdoc researcher in Dept. of Medical Biophysics, University of Toronto. Currently, he is a joint Research Associate in Quantum Information Quantum Communication & Cryptography Lab and Photonics Lab, Dept. of Electrical and Computer Engineering, University of Toronto.

Research Interests
Experimental quantum cryptography; Quantum optics; Optical coherence tomography; Fiber optical sensing technology.

US Patent

Bing Qi, Li Qian, Hoi-Kwong Lo, Yi Zhao, “Method and system for optical phase modulation based on frequency shift”, US  Patent Publication Number: US2007/0127932 A1(2007).

Wei Peng, Bing Qi, Anbo Wang, “Self compensating fiber optic flow sensor having an end of a fiber optics element and a reflective surface within a tube”, US Patent 7045767B2 (2006).

Patent disclosures licensed

  1. Bing Qi, Hai Xiao, Wei Huo, Anbo Wang, “Novel Data Processing Method for White Light Interferometric Fiber Optic Sensors”, Virginia Tech Intellectual Properties (VTIP) Disclosure No. 01-062 (2001). Disclosure licensed.
  2. Gary Pickrell, Bing Qi, Anbo Wang, “Improvement in Data Processing Method for White Light Interferometric Fiber Optic Sensors”, Virginia Tech Intellectual Properties (VTIP) Disclosure No. 01-092 (2001). Disclosure licensed.

Awards

1. Miniature Laser Bonded Self-Calibrating Interferometric Fiber Optic Sensor, R&D 100 Awards (2004).

Publications

Refereed Journal papers

  1. Bing Qi, Yi Zhao, Xiongfeng Ma, Hoi-Kwong Lo, Li Qian, “Quantum key distribution with dual detectors”, Physical Review A 75 052304 (2007)
  2. Chi-Hang Fred Fung, Bing Qi, Kiyoshi Tamaki, and Hoi-Kwong Lo, “Phase-Remapping Attack in Practical Quantum Key Distribution Systems,” Physical Review A 75 032314 (2007)
  3. Yi Zhao, Bing Qi, and Hoi-Kwong Lo, “Experimental quantum key distribution with active phase randomization”,  Applied Physics Letters  90 044106 (2007)
  4. Bing Qi, Li Qian, “Optimal filters for photon cloning with an optical amplifier”, Optics Letters 32, 418-420 (2007)
  5. Bing Qi, Chi-Hang Fred Fung, Hoi-Kwong Lo, Xiongfeng Ma, “Time-shift attack in practical quantum cryptosystems,” Quantum Information and Computation, 7(1): 73-82 (2007) (preprint arXiv: quant-ph/0512080)
  6. Bing Qi, “Single photon continuous variable quantum key distribution based on energy-time uncertainty relation,” Optics letters 31, 2795-2797 (2006)
  7. Yibing Zhang, Gary R. Pickrell, Bing Qi, Ahmad Safaai-Jazi, Anbo Wang, “Single-crystal Sapphire Based Optical Polarimetric Sensor for High Temperature Measurement”, Sensors 6: 823-834 (2006).
  8. Bing Qi, Lei-Lei Huang, Hoi-Kwong Lo, Li Qian, “Polarization insensitive phase modulator for quantum cryptosystems,” Optics Express 14, 4264-4269 (2006)
  9. Yi Zhao, Bing Qi, Xiongfeng Ma, Hoi-Kwong Lo, Li Qian, “Experimental Quantum Key Distribution with Decoy States,” Physical Review Letters 96, 070502 (2006).
  10. Bing Qi, Li Qian, Andrew Tausz and Hoi-Kwong Lo, “Frequency-shifted Mach-Zehnder Interferometer for Locating Multiple Weak Reflections along a Fiber Link,” IEEE Photonics Technology Letter 18, 295-297 (2006).
  11. Bing Qi, Andrew Tausz, Li Qian, Hoi-Kwong Lo, “High-resolution, large dynamic range fiber length measurement based on frequency-shifted asymmetrical Sagnac interferometer,” Optics Letters 30, 3287-3289 (2005).
  12. Xiongfeng Ma, Bing Qi, Yi Zhao, Hoi-Kwong Lo, “Practical decoy state for quantum key distribution,” Physical Review A 72, 012326 (2005).
  13. Victor X. D. Yang, Shou-jiang Tang, Maggie L. Gordon, Bing Qi, Geoffrey Gardiner, Maria Cirocco, Paul Kortan, Gregory B. Haber, Gabor Kandel, I. Alex Vitkin, Brian C. Wilson, Norman E. Marcon, “Endoscopic Doppler optical coherence tomography in the human GI tract: initial experience,” Gastrointestinal Endoscopy 61 (7): 879-890 (2005).
  14. J. T. W. Yeow, Victor X. D. Yang, A. Chahwan, Maggie L. Gordon, Bing Qi, I. Alex. Vitkin, Brian C. Wilson, A. A. Goldenberg, “Micromachined 2-D scanner for 3-D optical coherence tomography,” Sensors and Actuators, A: Physical, 117 (2): 331-340 (2005).
  15. Wei Peng, Gary R. Pickrell, Zhengyu Huang, Juncheng Xu, Dae Woong Kim, Bing Qi, Anbo Wang, “Self-compensating fiber optic flow sensor system and its field applications,” Applied Optics 43 (8): 1752-1760 ( 2004).
  16. Bing Qi, A. Phillip  Himmer, Maggie L. Gordon, Victor X. D. Yang, L. David Dickensheets, I. Alex Vitkin, “Dynamic focus control in high-speed optical coherence tomography based on a microelectromechanical mirror,” Optics Communications 232 (1-6): 123-128 (2004).
  17. Yibing Zhang, Gary R. Pickrell, Bing Qi, Ahmad Safaai-Jazi, Anbo Wang, “Single-crystal sapphire-based optical high-temperature sensor for harsh environments,” Optical Engineering 43 (1): 157-164 (2004).
  18. Bing Qi, Gary R. Pickrell, Jucheng Xu, Po Zhang, Yuhong Duan, Wei Peng, Zhengyu Huang, Wei Huo, Hai Xiao, Russell G. May, Anbo Wang, “Novel date processing techniques for dispersive white light interferometer,” Optical Engineering 42(11):3165-3171 (2003).
  19. Po Zhang, H. H. Cerecedo-Núñez, Bing Qi, Gary R. Pickrell,  Anbo Wang, “Optical time-domain reflectometry interrogation of multiplexing low-reflectance Bragg-grating-based sensor system,” Optical Engineering 42 (6): 1597-1603 (2003).
  20. Victor X. D. Yang,  Maggie L. Gordon,  Shou-jiang Tang,  Norman E. Marcon,  Geoffrey Gardiner,  Bing Qi,  Stuart Bisland,  Emily Seng-Yue,  Stewart Lo,  Julius Pekar,  Brian C. Wilson, I. Alex Vitkin, “High speed, wide velocity dynamic range Doppler optical coherence tomography (Part III): in vivo endoscopic imaging of blood flow in the rat and human gastrointestinal tracts,” Optics Express 11: 2416-2424 (2003).
  21. Victor X. D. Yang,  Maggie L. Gordon,  Emily Seng-Yue,  Stewart Lo,  Bing Qi,  Julius Pekar,  Alvin Mok,  Brian C. Wilson, I. Alex Vitkin, “High speed, wide velocity dynamic range Doppler optical coherence tomography (Part II): Imaging in vivo cardiac dynamics of Xenopus laevis,” Optics Express 11: 1650-1658 (2003).
  22. Victor X. D. Yang,  Maggie L. Gordon,  Bing Qi,  Julius Pekar,  Stewart Lo,  Emily Seng-Yue,  Alvin Mok,  Brian C. Wilson, I. Alex Vitkin, “High speed, wide velocity dynamic range Doppler optical coherence tomography (Part I): System design, signal processing, and performance,” Optics Express 11: 794-809 (2003).
  23. Shou-jiang Tang, Maggie L. Gordon, Victor X. D. Yang, M. E. Faughnan, Maria Cirocco, Bing Qi, Emily Seng-Yue, Geoffrey Gardiner, Gregory B. Haber, Gabor Kandel, Paul Kortan, I. Alex Vitkin, Brian C. Wilson, Norman E. Marcon, “In vivo Doppler optical coherence tomography of mucocutaneous telangiectases in hereditary hemorrhagic telangiectasia,”  Gastrointestinal Endoscopy 58 (4): 591-598 ( 2003).
  24. Victor X. D. Yang, Bing Qi, Maggie L. Gordon, Emily. Seng-Yue, Stuart Bisland, Shou-jiang Tang, Norman E. Marcon, I. Alex Vitkin, Brian C. Wilson, “In vivo feasibility of endoscopic catheter-based Doppler optical coherence tomography,” Gastroenterology 124 (4): A49-A50 Suppl. S  (2003).
  25. Bing Qi, Kezhong He, Zhilin Zhang, Xiaozhou Li, Bin Shi, Xingjia Guo, ”Cancer diagnosis system based on the spectra of serum,” Semiconductor photonics and technology. 5(1):29-34 (1999).
  26. Bing Qi, Kezhong He, Fei Qi, “Optical Sensor Systems for Real-time Obstacle Detection in Automobile”, Laser & Infrared, 29 (1):17-20 (1999). Language: Chinese..
  27. Bing Qi, Wei Peng, Junxiu Lin, Fei Qi, “Optic-bridge compensation technique using a polarization splitting prism,” Opto-Electronic Engineering, 25 (5):46-52 (1998). Language: Chinese.
  28. Bing Qi, Fei Qi, Wei Peng, “Design of laser radar fiber optic liquid level sensor system,” Semiconductor Photonics and Technology, 4(4): 248-252 (1998).
  29. Wei Peng, Bing Qi, “Bridge compensation technique based on a polarization bean splitter”, Semiconductor Optoelectronics 19(5): 327-331 (1998). Language: Chinese.
  30. Bing Qi, Wei Peng, “Practical studies on bridge compensating technique in fiber optic sensors”, Journal of Transduction Technology, 11 (1): 32-37 (1998). Language: Chinese.
  31. Wei Peng, Bing Qi, Junxiu Lin, “Study of optical non-contact on-line measurement in laser radar liquid level fiber sensor system”, Instrument Technique and Sensor, No.12: 19-22 (1997). Language: Chinese.
  32. Wei Peng, Bing Qi, Junxiu Lin, “Study of the impact of optical assemble processes on the performance of IM85-1 fiber optic liquid level sensing system”, Instrument Technique and Sensor, No.7: 17-22 (1996). Language: Chinese.
  33. Bing Qi, Wei Peng, Zhao-chi Feng, “Compensation Technique in Optic Fiber Sensor”, Automatic Instrument, 17(12): 11-13 (1996). Language: Chinese.
  34. Bing Qi, Jianhua Ding, Shunping Ren, Junxiu Lin, “The method of temperature compensation in optical fiber sensor system”, Journal of Transducer Technology, 15 (2): 39-43 (1996). Language: Chinese.
  35. Wei Peng, Bing Qi, Junxiu Lin, Jianhua Ding, “Development of optical system for laser radar fiber liquid level sensor”, Journal of Transducer Technology, 15 (5): 33-36 (1996). Language: Chinese.
  36. Bing Qi, Tao Jiang, Wei Peng, Junxiu Lin, “Digital phase detector used in laser range finder”, Automation & Instrumentation, 11(3): 7-8 (1996). Language: Chinese.
  37. Weiming Zhou, Hongbin Ding, Bing Qi, Yi Wang, “Temperature dependence of light source for optical-fiber pressure sensor,” Journal of Dalian University of Technology, 34 (4): 485-488 (1994). Language: Chinese.
  38. Xiaodan Jin, Tao Jiang, Bing Qi, “Selfoc lenses and their application to optical fiber sensing system,” Journal of Dalian University of Technology, 33 (4): 390-395 (1993). Language: Chinese.

Conference proceedings/presentations/posters

  1. Bing Qi, Yi Zhao, Xiongfeng Ma, Hoi-Kwong Lo, Li Qian, “Improve the efficiency of a practical quantum key distribution system”, Proceedings of SPIE 6710: 671015 (2007).
  2. Bing Qi, Chi-Hang Fred Fung, Yi Zhao, Xiongfeng Ma, Kiyoshi Tamaki, Christine Chen, Hoi-Kwong Lo, “Quantum hacking: attacking practical quantum key distribution Systems”, Proceedings of SPIE 6710: 671001 (2007).
  3. Bing Qi, Yi Zhao, Xiongfeng Ma, Hoi-Kwong Lo, Li Qian, “Dual detectors scheme in practical quantum key distribution system”, CLEO/Europe-IQEC 2007  17-22 June 2007, Munich, Germany  Paper JSI-2-WED (Poster)
  4. Yi Zhao, Bing Qi, Xiongfeng Ma and Hoi-Kwong Lo, “Experimental techniques to enhance the performance of quantum key distribution systems” APS Division of Atomic, Molecular, and Optical Physics Annual Meeting, Calgary, Canada, 5-9 June 2007. Paper  Q5.00001 (Oral)
  5. Yi Zhao, Bing Qi, Hoi-Kwong Lo, “Experimental Quantum Key Distribution with Active Phase Randomization,” Conference on Lasers and Electro-optics (CLEO/QELS 2007), Baltimore, Maryland, May 6-11, 2007. Paper QML2 (Oral)
  6. Yi Zhao, Bing Qi, Xiongfeng Ma, Hoi-Kwong Lo, Li Qian, “ Experimental Studies on Decoy state Quantum Cryptography”, Asian Conference on Quantum Information Science 2006,  Beijing, China September 1-4, 2006 (Oral)
  7. Roger Mong, Neeraj Sood, Bing Qi, Lei-Lei Huang, Li Qian, Hoi-Kwong Lo, “Quantum Key Distribution in a Sagnac fiber loop interferometer using AOM based phase modulators”, Conference on Quantum Information and Quantum Control II. Toronto, ON, Canada. August 12-14, 2006.
  8. Christine Chen, Bing Qi, Yi Zhao, Chi-Hang Fred Fung, Xiongfeng Ma, Hoi-Kwong Lo, “Experimental Study of Time-shifting Attack with a Commercial Quantum Key Distribution System”, Conference on Quantum Information and Quantum Control II. Toronto, ON, Canada. August 12-14, 2006.
  9. Yi Zhao, Bing Qi, Xiongfeng Ma, Hoi-Kwong Lo, Li Qian, “Decoy State Quantum Key Distribution over 60km Telecom Fiber,” Conference on Quantum Information and Quantum Control II. Toronto, ON, Canada. August 12-14, 2006.
  10. Lei-Lei Huang, Bing Qi, Roger Mong, Li Qian, Hoi-Kwong Lo, “Sagnac Quantum Key Distribution Using Novel Polarization-Insensitive Phase Modulators Based On Frequency Shift”, IEEE-LEOS Summer Topical Meetings. Quebec, QC, Canada. July 17-19, 2006. Paper TuB3.2
  11. Bing Qi, Lei-Lei Huang, Hoi-Kwong Lo, Li Qian, “Quantum key distribution based on a Sagnac loop interferometer and polarization-insensitive phase modulators,” IEEE International Symposium on Information Theory (2006), Seattle, USA, July 9-14, 2006. Symposium Proceedings 2090-2093 (Oral presentation).
  12. Yi Zhao, Bing Qi, Xiongfeng Ma, Hoi-Kwong Lo, Li Qian, “Simulation and Implementation of Decoy State Quantum Key Distribution over 60km Telecom Fiber,” IEEE International Symposium on Information Theory (2006), Seattle, USA, July 9-14. Symposium Proceedings 2094-2098.
  13. Bing Qi, Li Qian, and Hoi–Kwong Lo, “Quantum cloning with a broadband optical amplifier,” Optical Amplifiers and Their Applications (OAA) 2006, Whistler, BC, Canada, June 25-30, 2006. Paper OWA6 (Oral presentations).
  14. Yu Liu, Li Qian, Bing Qi, Xijia Gu, “Fiber Grating Sensor Array Interrogation Using a Frequency-Shifted Interferometer and Fourier Analysis,” Optical Amplifiers and Their Applications (OAA) 2006, Whistler, BC, Canada, June 25-30, 2006. Paper CWD4.
  15. Bing Qi, “Quantum cryptography based on energy time uncertainty relation”, CAP congress 2006, St. Catharines, ON, Canada. June 11-14, 2006. (Oral presentation)
  16. Yu Liu, Li Qian, Bing Qi, Hoi-Kwong Lo, Xijia Gu, “Interrogation of multiplexed fiber grating sensors using frequency-shifted interferometer,” Conference on Lasers and Electro-optics (CLEO 2006), Long Beach, CA, May 21-26, 2006, paper JThC91
  17. Bing Qi, Li Qian, Andrew Tausz, Yu Liu, Hoi-Kwong Lo, “Frequency-shifted interferometer and its applications,” Optical Fiber Communications Conference (OFC 2006), Anaheim, CA, Mar 5 - 10, 2006 paper OTuL3. (Oral presentation)
  18. Wei Peng, Bing Qi, Gary R. Pickrell, Anbo Wang, “Investigation on cubic zirconia-based fiber optic pressure sensor for high temperature application,” Proceedings of IEEE Sensors, 2(1): 713-717 (2003). (Oral presentation)
  19. Yuwen Qin, Anbo Wang, Wei Peng, Hai Xiao, Bing Qi, Gary R. Pickrell, Russell G. May, “Theoretical analyze about the optical insertion loss of SCIIB fiber optic sensor,” Proceedings of the sixth Chinese Optoelectronics Symposium: 284-287 (2003).
  20. Juncheng Xu, Gary R. Pickrell, Zhengyu Huang, Bing Qi, Po Zhang, Yuhong Duan, Anbo Wang, “Double-tubing encapsulated fiber optic temperature sensor,” Temperature: its measurement and control in science and industry, 7, PTS 1 and 2 684:1021-1026 (2003).
  21. Yibing Zhang, Gary R. Pickrell, Bing Qi, Russell G. May, Anbo Wang, “Single-crystal sapphire high-temperature measurement instrument for coal gasification,” Temperature: its measurement and control in science and industry, 7, PTS 1 and 2 684: 1027-1032 (2003).
  22. Victor X. D. Yang, Maggie L. Gordon, Bing Qi, Yue, Emily Seng, Shou-jiang Tang, Stuart Bisland, Julius Pekar, Stewart Lo, Norman Marcon, Brian C. Wilson, I. Alex Vitkin, “High sensitivity detection and monitoring of microcirculation using cutaneous and catheter probes for Doppler optical coherence tomography,”  Proceedings of SPIE, 4965: 153-159 (2003).
  23. Yibing Zhang, Gary R. Pickrell, Bing Qi, Russell G. May, Anbo Wang, “BPDI based optical sensor for real-time high temperature measurements for the coal gasification process,” Advanced sensor systems and applications, Proceedings of SPIE, 4920: 9-15 (2002).
  24. Yibing Zhang, Gary R. Pickrell, Bing Qi, Russell G. May, Anbo Wang, “Single-crystal sapphire high temperature sensing based on broadband polarimetric interferometer,” ISA/IEEE Sensors for Industry Conference , Proceedings: 303-307 (2001).
  25. Bing Qi, Gary R. Pickrell, Po Zhang, Yuhong Duan, Wei Peng, Juncheng Xu, Zhengyu Huang, Jiangdong Deng, Hai Xiao, Zhiyong Wang, Wei Huo,  Russell G. May,  Anbo Wang, “Fiber optic pressure and temperature sensors for oil down hole application,”  Proceedings of SPIE, 4578: 182-190 (2002). (Oral Presentation)
  26. Yibing Zhang, Bing Qi, Yuhong Duan, Yan Zhang, Gary R. Pickrell, Russell G. May, Anbo Wang, “Single-crystal sapphire high temperature sensor,” Proceedings of SPIE 4578: 191-197 (2002).
  27. Gary R. Pickrell, Yuhong Duan, Bing Qi, Russell G. May, Anbo Wang, “Investigation of the diffusion of water in optical fibers at elevated temperature and pressure,”  Proceedings of SPIE 4578: 239-250 (2002).
  28. Bing Qi, Wei Peng, Jianhua Ding, Junxiu Lin, “Practical studies on bridge compensating technique in fiber optic sensors,” Proceedings of SPIE 3555: 285-290 (1998).
  29. Bing Qi, Wei Peng, Shunping Ren, Junxiu Lin, “Studies on the long-term stability of fiber optic pressure sensor”, Proceedings of SPIE 2895: 445-450 (1996).
  30. Bing Qi, Wei Peng, Junxiu Lin, Jianhua Ding, “Measurement of liquid level using LADAR”, Proceedings of SPIE, 2895: 439-444(1996).
  31. Qingxu Yu, Bing Qi, Jianhua Ding, Junxiu Lin, “Self-calibrating fiber optic level sensor system” , Proceedings of SPIE, 2895: 467-470 (1996).

Preprints

Canadian Institute for Photonic InnovationsNatural Science and Engineering Research Council of CanadaCanada Research ChairsCanada Foundation for InnovationOntario Innovation TrustPremier's Research Excellence Awards The Canadian Institute for Advanced Research