We provide the first two-party protocol allowing Alice and Bob to evaluate privately even against active adversaries any completely positive, tracepreserving map F ∈ L(Ain ⊗ Bin) → L(Aout ⊗ Bout), given as a quantum circuit, upon their joint quantum input state ρin ∈ D(Ain ⊗ Bin). Our protocol leaks no more to any active adversary than an ideal functionality for F provided Alice and Bob have th...

*Correspondence should be addressed to Ernesto Abel-Santos or Jürgen Brojatsch. EAS: Department of Chemistry, University of Nevada Las Vegas, 4505 Maryland Pkwy-Box 454003, Las Vegas, NV 89154, Tel. 702 895-2608, Fax. 702 895-4072, E-mail: [email protected]. JB: Department of Microbiology and Immunology, Albert Einstein College of Medicine, Golding 404, 1300 Morris Park Avenue, Bronx,...

We develop a general procedure for estimating the effective constitutive behavior of nonlinear dielectrics. The procedure is based on a variational principle expressing the effective energy function of a given nonlinear composite in terms of the effective energy functions of the class of linear comparison composites. This provides an automatic procedure for converting well-known information for...

Current Problems in Surgery keeps readers up-to-date on the latest surgical advances. Each month, this publication examines a single clinical problem or condition commonly seen by general surgeons. Issues also focus on topics in surgical research and emerging ideas in surgical subspecialties. Current Problems in Surgery is ideal for information too urgent to await book publication, yet too impo...

When the World Trade Centre was destroyed in New York on 11 September 2001, I felt devastation for all the victims of this atrocity. This included the terrorist themselves as well as the families of the dead and injured and of the perpetrators. When America used this atrocity as a reason to attack Iraq I was very disturbed by the transposition of lines of blame to a country that had no direct l...