Abstract: In quantum key distribution (QKD), the bit error rate is used to estimate the information leakage and hence determines the amount of privacy amplification—making the final key private by s...
Abstract: The Szilard engine (SZE) is the quintessence of Maxwell’s demon, which can extract the work from a heat bath by utilizing information. We present the first complete quantum analysis of the...
Abstract: Modern programming relies on our ability to treat preprogrammed functions as black boxes - we can invoke them as subroutines without knowing their physical implementation. Here we show it i...
Abstract: Quantumentanglement is the central resource behindquantum information science, from quantum computation and simulation1,2 to enhanced metrology3 and secure communication1. These application...
Abstract: 1.5 μm correlated/entangled photon pairs have important applications in quantum communication, quantum information processing and quantum metrology. Traditionally, photon pairs were genera...
Abstract: We introduce the notion of quantum Markov decision process (qMDP) as a semantic model of nondeterministic and concurrent quantum programs. It is shown by examples that qMDPs can be used in ...