xQIT W. M. Keck Foundation Center For Extreme Quantum Information Theory at the Massachusetts Institute of Technology
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  Events > 2011 xQIT Conference


  Jeffrey H. Shapiro
Julius A. Stratton Professor of Electrical Engineering, MIT

Jeffrey H. Shapiro is the Julius A. Stratton Professor of Electrical Engineering and the Director of the Research Laboratory of Electronics at MIT, where he has been a faculty member since 1973.  Professor Shapiro received his undergraduate and graduate degrees from MIT.  His research interests center on the application of communication theory to optical systems. He is best known for his work on the generation, detection, and application of squeezed-state light beams, but he has also published extensively in the areas of atmospheric optical communication, coherent laser radar, and quantum information science. Dr. Shapiro is a fellow of the Institute of Electrical and Electronics Engineers, of the Optical Society of America, of the American Physical Society, and of the Institute of Physics.  He is Co-Director of the W. M. Keck Foundation Center for Extreme Quantum Information Theory (xQIT).

Defeating Eavesdropping with Gaussian-State Quantum Illumination
May 4, 2011 - 2:15 PM - 2:40 PM
RLE Conference Center 36-428


Quantum illumination is a paradigm for using entanglement to gain a performance advantage - in comparison with classical-state systems of the same optical power - over lossy, noisy channels that destroy entanglement.  We will describe a two-way communication protocol using Gaussian-state quantum illumination that enables Alice and Bob to achieve high data-rate communication with immunity to passive eavesdropping, i.e., when Eve merely listens to their transmissions by capturing all the light that does not reach its intended receiver.  Then we will present preliminary results from an experiment to demonstrate this immunity.  Finally, we extend our analysis to show how Alice and Bob can minimize their vulnerability to active eavesdropping, in which Eve injects her own light into the channel.