Quantum Cryptography in Practice

BBN, Harvard, and Boston University are building the DARPA Quantum Network, the world's first network that delivers end-to-end network security via high-speed Quantum Key Distribution, and testing that Network against sophisticated eavesdropping attacks. The first network link has been up and steadily operational in our laboratory since December 2002. It provides a Virtual Private Network between private enclaves, with user traffic protected by a weak-coherent implementation of quantum cryptography. This prototype is suitable for deployment in metro-size areas via standard telecom (dark) fiber. In this paper, we introduce quantum cryptography, discuss its relation to modern secure networks, and describe its unusual physical layer, its specialized quantum cryptographic protocol suite (quite interesting in its own right), and our extensions to IPsec to integrate it with quantum cryptography.Comment: Preprint of SIGCOMM 2003 pape

Three atmospheric dispersion experiments involving oil fog plumes measured by lidar

The Wave Propagation Lab. participated with the U.S. Environmental Protection Agency in a series of experiments with the goal of developing and validating dispersion models that perform substantially better that models currently available. The lidar systems deployed and the data processing procedures used in these experiments are briefly described. Highlights are presented of conclusions drawn thus far from the lidar data

Sensing & Thinking with Art - Exploring Imaginative Dialogues in Artistic Practice

Artistic research, through sensory experiences, gives opportunities for new knowledge about the creative process. In this paper, I explore within a performative research paradigm, dialogues and relationships that happen between artist-researcher and materials. In my research, I show that serendipity and flow can be gateways to imaginative dialogues with non-living materials in an artistic practice. Throughout the project, I have been listening and interacting with the phenomenon of imaginative dialogues in several artistic ways. A selection of these encounters are presented and analyzed through relevant theory to illustrate how assemblages of human and non-human actants may interrupt and transform the artistic practice while creating new knowledge and language within the practice

Notes on the Life History and Ecology of Gambusia Patruelis

It is the purpose of this thesis to present information on the life of Gambusia patruelis. The study is the combination of data collected by a number of writers on this subject, as well as observations taken of this species from the Rio Grande and conservancy ditches surrounding Albuquerque