Faculty Profile
 
  CHEN Kai
     
Department: Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics
Mailing Address:
Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
Postal Code:
230026
Phone:
0086-551-63607083
Fax:
0086-551-63606493
Homepage:
http://staff.ustc.edu.cn/~kaichen/
 
       

Research Profile

    Kai Chen, professor and Ph.D. supervisor with the University of Science and Technology of China (USTC). Chen was ever selected into the “Hundred Talents Program” of the Chinese Academy of Sciences (CAS). He received his Doctor of Science (D.Sc.) degree from the Northwestern University, with Professor Bo-Yu Hou being his doctoral supervisor. Chen has undertaken his postdoctoral research successively at the Institute of Physics, CAS (co-supervisors: Professor Ling-An Wu & Academician Guo-Zhen Yang), and at the Department of Physics, University of Toronto (supervisor: Prof. Hoi-Kwong Lo). He has also been a Humboldt Research Fellow at the University of Bonn, Germany (supervisor: Prof. Dr. Sergio Albeverio), and a postdoctoral fellow and Marie Curie postdoctoral scholar at the Institute of Physics, University of Heidelberg, Germany (supervisor: Professor Jian-Wei Pan). His main research interests lie in experimental and theoretical quantum communication and quantum information. As a Principal Investigator, he has been responsible for several projects supported by the CAS. and by the National Natural Science Foundation of China. Chen attempts to carry out in-depth study and exploration of multi-photon manipulation and application in optical quantum information processing, quantum information theory, nonlocality, as well as characterization of quantum correlations and their applications. In terms of quantum communication technology, Chen is focus on research of striving for longer distance communication, higher communication speed, better stability and reliability in real-life situation, and with guarantee of communication security. Chen is dedicated to the research of new communication schemes and related key technologies under the goal of pushing forward the practical and network-based development of quantum communication.
    At present, Chen also undertakes research on separability problem of quantum states, non-locality tests of quantum foundations, construction of new Bell inequalities,  classic and quantum many-body problem, and low-dimensional condensed matter physics. He has published more than 30 papers in high-profile domestic and international journals, of which 30 were indexed by SCI with a total of citations of over 1500 times. Currently, Chen is also a reviewer for many physics journals such as Nature Photonics, Nature Communications, Physical Review Letters, Physical Review X, Physical Review A, New Journal of Physics, Journal of Physics A, Journal of Physics B, Chinese Physics Letter, Physica Scripta, and Acta Physica Sinica etc.
 
     
Selected Publications
1) Randomness expansion with a one-sided trusted device , Phys. Rev. A , 2015 , 91 (2015) 052308
2) Genuine High-Order Einstein-Podolsky-Rosen Steering , Phys. Rev. Lett. , 2015 , 115 (2015) 010402
3) 基于半导体量子点的单光子源:原理、实现和前景 , 中国科学:信息科学 , 2014 , 44 (2014) 394-409
4) Direct and full-scale experimental verifications towards ground–satellite quantum key distribution , Nature Photonics , 2013 , 7 (2013) 387–393
5) Experimental Demonstration of Counterfactual Quantum Communication , Phys. Rev. Lett. , 2012 , 109 (2012) 030501
6) Verifying Genuine High-Order Entanglement , Phys. Rev. Lett. , 2010 , 105 (2010) 210504
7) Experimental Free-Space Quantum Teleportation , Nature Photonics , 2010 , 4 (2010) 376-381
8) Experimental Demonstration of a Heralded Entanglement Source , Nature Photonics , 2010 , 4 (2010) 549-552
9) Experimental multiplexing of quantum key distribution with classical optical communication , Applied Physics Letters , 2015 , 106 (2015) 081108
10) Metropolitan all-pass and inter-city quantum communication network , Optics Express , 2010 , 18 (2010) 27217-27225
11) Decoy-state quantum key distribution with polarized photons over 200 km , Optics Express , 2010 , 18 (2010) 8587-8594
12) Field test of a practical secure communication network with decoy-state quantum cryptography , Optics Express , 2009 , 17 (2009) 6540-6549
13) Long-distance quantum teleportation assisted with free-space entanglement distribution , Chinese Physics B , 2009 , 18 (2009) 3605-3610
14) Experimental determination of entanglement for arbitrary pure states , Phys. Rev. A , 2009 , 80 (2009) 032320
15) Multistage Entanglement Swapping , Phys. Rev. Lett. , (2008) , 101 (2008) 080403
16) Entanglement of formation and concurrence for mixed states , Front. Comput. Sci. China, , 2008 , 2 (2008) 114–128
17) Experimental Realization of One-Way Quantum Computing with Two-Photon Four-Qubit Cluster States , Phys. Rev. Lett. , 2007 , 99 (2007) 120503
18) Multi-partite quantum cryptographic protocols with noisy GHZ states , Quantum Information and Computation , 2007 , 99 (2007) 689
19) Two-Setting Bell Inequalities for Many Qubits , Phys. Rev. A , 2006 , 74 (2006) 050101(R)
20) Decoy state quantum key distribution with two-way classical post-processing , Phys. Rev. A , 2006 , 74 (2006) 032330
21) Concurrence-based entanglement measure for Werner States , Reports on Mathematical Physics , 2006 , 58 (2006) 325-334
22) Decoy State Quantum Key Distribution , Phys. Rev. Lett. , 2005 , 94 (2005) 230504
23) Entanglement of Formation of Bipartite Quantum States , Phys. Rev. Lett. , 2005 , 95 (2005) 210501
24) Concurrence of Arbitrary Dimensional Bipartite Quantum States , Phys. Rev. Lett. , 2005 , 95 (2005) 040504
25) Conference Key Agreement and Quantum Sharing of Classical Secrets with Noisy GHZ states , Proc. 2005 IEEE International Symp. Inform. Theory , 2005 , (2005) 1607-1611
26) Test for entanglement using physically observable witness operators and positive maps , Phys. Rev. A , 2004 , 69 (2004) 022312
27) The generalized reduction criterion for separability of quantum states , Phys. Rev. A , 2003 , 68 (2003) 062313
28) A matrix realignment method for recognizing entanglement , Quantum Information and Computation , 2003 , 3 (2003) 193-202
29) The generalized partial transposition criterion for separability of multipartite quantum states , Phys. Lett. A , 2002 , 306 (2002) 14-20
 
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TEL: +86-551-63600279, E-mail: tianlin@ustc.edu.cn