Most Important Contributions

 

1)      Is Quantum Bit Commitment Really Possible? H.-K. Lo and H. F. Chau, Phys. Rev. Lett., Vol. 78, 3410 (1997). http://xxx.lanl.gov/abs/quant-ph/9603004

 

2)      Unconditional Security of Quantum Key Distribution over Arbitrarily Long Distances, H.-K. Lo and H. F. Chau, Science Vol. 283, 2050 (1999). http://xxx.lanl.gov/abs/quant-ph/9803006

 

 

3)      Decoy State Quantum Key Distribution,  H.-K. Lo, X. Ma, and K. Chen, Phys. Rev. Lett. 94, 230504 (2005). http://arxiv.org/abs/quant-ph/0411004 [This work has been highlighted in a recent New Scientist Article and has attracted a lot of scientific and media interest.]

 

4)      Concentrating Entanglement by Local Actions: Beyond Mean Values, H.-K. Lo and S. Popescu , Phys. Rev. A, Vol. 63, 022301 (2001). http://xxx.lanl.gov/abs/quant-ph/9707038

 

 

5)      Security of quantum key distribution with imperfect Devices, D. Gottesman, H.-K. Lo, N. Lütkenhaus, and J. Preskill, Quantum Information and Computation. Vol. 4, No.5 (2004) 325-360. http://xxx.lanl.gov/abs/quant-ph/0212066

 

6)      Proof of Security of Quantum Key Distribution With Two-Way Classical Communications, D. Gottesman and H.-K. Lo, IEEE Transactions on Information Theory, Vol. 49, No. 2, p. 457 (2003). http://xxx.lanl.gov/abs/quant-ph/0105121

 

Survey Articles

 

S1) From Quantum Cheating to Quantum Security,  D. Gottesman and H.-K. Lo, Physics Today, Nov. 2000, p. 22. http://www.aip.org/pt/vol-53/iss-11/p22.html       (Listed as a notable article in “The Best American Science and Nature Writing, 2001” edited by Ed. O. Wilson.)

 

S2) Cryptography's Quantum Barrier, H.-K. Lo, Physics World, June 2001, p. 17.

 

 

 

Refereed Journal Articles

 

 

1)      High-resolution, large dynamic range fiber length measurement based on frequency-shifted asymmetrical Sagnac interferometer B. Qi, A. Tausz, L. Qian, and H.-K. Lo, accepted for publication in Optics Letters.

 

2)      Practical decoy state for quantum key distribution, X. Ma, B. Qi, Y. Zhao, and H.-K. Lo, Phys. Rev. A72, 012326 (2005). http://arxiv.org/abs/quant-ph/0503005

 

3)      Inefficiency and classical communication bounds for conversion between partially entangled pure bipartite states, B. Fortescue and H.-K. Lo, Accepted for publication in Phys. Rev. A. http://xxx.lanl.gov/abs/quant-ph/0411200

 

4)      Getting something out of nothing, H-K. Lo, Quantum Information and Computation Vol 5, No. 4&5 (2005) 413-418. http://arxiv.org/abs/quant-ph/0503004

 

5)      Efficient Quantum Key Distribution Scheme and a Proof of its Unconditional Security, H.-K. Lo, H. F. Chau, M. Ardehali, J. of Cryptology, 18, Number 2, (2005) 133-165. http://arxiv.org/abs/quant-ph/0011056.

 

6)      Some attacks on quantum-based cryptographic protocols, H.-K. Lo and T.-M. Ko, Quantum Information and Computation. Vol. 5, No.1 (2005) 40-47. http://xxx.lanl.gov/abs/quant-ph/0309127

 

7)      A Tight Lower Bound on the Classical Communication Cost of Entanglement  Dilution, A. Harrow and H.-K. Lo, IEEE Transactions on Information Theory, Vol. 50, Issue 2, pp. 319-327 (2004)            http://xxx.lanl.gov/abs/quant-ph/0204096

 

8)      Method for decoupling error correction from privacy amplification, H.-K. Lo, New Journal of Physics 5, 36 (2003). (Invited paper) http://xxx.lanl.gov/abs/quant-ph/0201030

 

9)      Proof of Unconditional Security of Six-State Quantum Key Distribution Scheme, H.-K. Lo, Quantum Information and Computation, Vol. 1, Number 2, 81 (2001). http://xxx.lanl.gov/abs/quant-ph/0102138

 

10)  A Simple Proof of the Unconditional Security of Quantum Key Distribution, H.-K. Lo, J. of Phys. A, Vol. 34, 6957 (2001). http://xxx.lanl.gov/abs/quant-ph/9904091

 

11)  A Quantum Analog of Huffman Coding, S. L. Braunstein, C. A. Fuchs, D.Gottesman, and H.-K. Lo, IEEE Transactions on Information Theory, Vol. 46, 1644 (2000). http://xxx.lanl.gov/abs/quant-ph/9805080

 

12)  Classical-communication cost in distributed quantum-information processing: a generalization of quantum-communication complexity,  H.-K. Lo, Phys. Rev. A, Vol. 62, 012313 (2000).

 

13)  How to Share a Quantum Secret, R. Cleve, D. Gottesman and H.-K. Lo, Physical Review Letters Vol. 83, 648 (1999). http://xxx.lanl.gov/abs/quant-ph/9901025

 

14)  Classical Communication Cost of Entanglement Manipulation: Is Entanglement an Interconvertible Resource? H.-K. Lo and S. Popescu , Physical Review Letters, Vol. 83, 1459 (1999). http://xxx.lanl.gov/abs/quant-ph/9902045

 

15)  Making An Empty Promise With A Quantum Computer, (Invited Paper) H. F. Chau and H.-K. Lo, Fort. de. Phys., Vol. 46, No. 4-5, 325 (1998). http://xxx.lanl.gov/abs/quant-ph/9709053 [Also, re-published in the book “Quantum Computing”, eds. S. Braunstein. http://www.sees.bangor.ac.uk/~schmuel/book/book1.html ]

 

16)  Why Quantum Bit Commitment and Ideal Quantum Coin Tossing Are Impossible, H.-K. Lo and H. F. Chau, Physica D, Vol. 120, 177 (1998). http://xxx.lanl.gov/abs/quant-ph/9711065

 

17)  Insecurity of Quantum Secure Computations, H.-K. Lo, Phys. Rev. A, Vol.56, 1154 (1997). http://xxx.lanl.gov/abs/quant-ph/9611031

 

 

18)  One Way Functions in Reversible Computations, H. F. Chau and H.-K. Lo, Cryptologia, Vol. 21, No. 2, 139 (1997). http://xxx.lanl.gov/abs/quant-ph/9506012

 

19)  Primality Test via Quantum Factorization, H. F. Chau and H.-K. Lo, International Journal of Modern Physics C, Vol. 8, No. 2, 131 (1997). http://xxx.lanl.gov/abs/quant-ph/9508005

 

20)  Quantum coding Theorem for mixed states, H.-K. Lo, Optics Communications, Vol. 119, 552 (1995). http://xxx.lanl.gov/abs/quant-ph/9504004

 

21)  Aharonov-Bohm Order Parameters for Non-Abelian Gauge Theories, H.-K. Lo, Phys. Rev. D, Vol. 52, 7247 (1995). http://xxx.lanl.gov/abs/hep-th/9502080

 

22)  Is Baryon Number Violated when Electroweak Strings Intercommute? H.-K. Lo, Phys. Rev. D, Vol. 51, 7152 (1995). http://xxx.lanl.gov/abs/hep-ph/9409319

 

23)  Scattering from Electroweak Strings, H.-K. Lo, Phys. Rev. D, Vol. 51, 802 (1995). http://xxx.lanl.gov/abs/hep-ph/9404273

 

24)  Exact Wave Functions for non-Abelian Chern-Simons Particles, H.-K. Lo, Phys. Rev. D, Vol. 48, 4999 (1993). http://xxx.lanl.gov/abs/hep-th/9306076

 

25)  Complementarity in Wormhole Chromodynamics, H.-K. Lo, K.-M. Lee and J. Preskill, Phys. Lett. B, Vol. 318, 287 (1993). http://xxx.lanl.gov/abs/hep-th/9308044

 

26)  Non-Abelian Vortices and non-Abelian Statistics, H.-K. Lo and J. Preskill, Phys. Rev. D, Vol. 48, 4821 (1993). http://xxx.lanl.gov/abs/hep-th/9306006

 

27)  Topological Approach to Alice Electrodynamics, M. Bucher, H.-K. Lo and J. Preskill, Nucl. Phys. B, Vol. 386, 3 (1992). http://xxx.lanl.gov/abs/hep-th/9112039

 

Preprints

 

P1) Multi-partite quantum cryptographic protocols with noisy GHZ states, K. Chen and H.-K. Lo, http://xxx.lanl.gov/abs/quant-ph/0404133

 

P2) Quantum Key Distribution: Beyond No-Cloning Theorem, K. Tamaki, and H.-K. Lo, http://arxiv.org/abs/quant-ph/0412035

 

P3) Experimental Quantum Key Distribution with Decoy States, Y. Zhao, B. Qi, X. Ma, H.-K. Lo, and L. Qian, http://arxiv.org/abs/quant-ph/0503192

 

P4) On the (Im)Possibility of Quantum String Commitment, H. Buhrman, M. Christandl, P. Hayden, H.-K. Lo, S. Wehner , http://arxiv.org/abs/quant-ph/0504078

 

P5) Phase randomization improves the security of quantum key distribution, H.-K. Lo and J. Preskill, http://arxiv.org/abs/quant-ph/0504209

 

P6) Two-way quantum communication channels, A. Childs, D. W. Leung, and H.-K. Lo, http://arxiv.org/abs/quant-ph/0506039

 

P7) Frequency-shifted Mach-Zehnder Interferometer for Locating Multiple Weak Reflections along a Fiber Link, B. Qi, L. Qian, A Tausz, and H.-K. Lo, Submitted to IEEE Photonics Technology Letters.

 

Selected Recent Refereed Conference Proceedings/Abstracts

 

IEEE ISIT (International Symposium on Information Theory) 2005, three proceedings and talks (to be presented by my student Ben Fortescue)

 

T1) Inefficiency and classical communication bounds for conversions between partially entangled pure bipartite quantum states, B. Fortescue and H.-K. Lo.

 

T2) Conference key agreement and quantum sharing of classical secrets with Noisy GHZ states, K. Chen and H.-K. Lo.

 

T3) Unconditionally secure key distillation from multi-photons in a single-photon polarization-based quantum key distribution, K. Tamaki and H.-K. Lo

 

IEEE ISIT 2004, two abstracts & talks.

 

T4) Quantum key distribution with vacua and dim pulses as decoy states, H.-K. Lo

 

T5) Security of quantum key distribution with imperfect devices, D. Gottesman, H.-K. Lo, N. Lutkenhaus, and J. Preskill

 

  IEEE ISIT 2003, two abstracts & talks.

 

T6)  A tight lower bound on the classical communication cost of entanglement Dilution, A. W. Harrow and H. K. Lo           

 

T7)  Error correction and security in quantum cryptography, H.-K. Lo        

 

[Remark: ISIT is the most important conference in information theory. The acceptance rate is about 50% and people submitting more than one talk are under particular scrutiny.]           

 

 

          Book Review

 

How Cryptology Went Commercial, H.-K. Lo, Physic World, June 2001, p. 53. (A review of Steven Levy's book, Crypto.) Abstract of this review is available at: http://physicsweb.org/article/review/14/6/2