Patrick Hayden at MSRI - Hiding quantum data

<BODY> MSRI Streaming Video Series <BR> Patrick Hayden - Hiding quantum data <BR> <center> A PDF version of the lecture notes is available <A HREF="http://www.msri.org/publications/ln/msri/2002/qip/hayden/1/meta/aux/hayden.pdf">here</A>. </center> </BODY>