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QUANTUM SECRET SHARING
Secret sharing is a procedure for splitting a message into several parts so that no subset of parts is sufficient to read the message, but the entire set is. We show how this procedure can beExpand
Distribution functions in physics: Fundamentals
This is the first part of what will be a two-part review of distribution functions in physics. Here we deal with fundamentals and the second part will deal with applications. We discuss in detail theExpand
The Quantum Theory of Nonlinear Optics
1. Classical nonlinear optics 2. Field quantization 3. Quantized fields in dielectric media 4. Microscopic description of media 5. Coherence and quantum dynamics in simple system 6. Decoherence andExpand
Universal state inversion and concurrence in arbitrary dimensions
Wootters [Phys. Rev. Lett. 80, 2245 (1998)] has given an explicit formula for the entanglement of formation of two qubits in terms of what he calls the concurrence of the joint density operator.Expand
Entanglement conditions for two-mode states.
We provide a class of inequalities whose violation shows the presence of entanglement in two-mode systems. We initially consider observables that are quadratic in the mode creation and annihilationExpand
Programmable Quantum Gate Arrays
TLDR
We present a probabilistic quantum processor for qubits that can perform any operation on a single qubit with a certain probability. Expand
UNIVERSAL OPTIMAL CLONING OF ARBITRARY QUANTUM STATES : FROM QUBITS TO QUANTUM REGISTERS
We present the universal cloning transformation of states in arbitrary-dimensional Hilbert spaces. This unitary transformation attains the optimal fidelity of cloning as specified by Werner [Phys.Expand
Relations between Coherence and Path Information.
TLDR
We find two relations between coherence and path information in a multipath interferometer in which the path information is characterized by the mutual information between the detector states and the outcome of the measurement performed on them, and the coherence measure is one based on relative entropy. Expand
Towards quantum-based privacy and voting
The privacy of communicating participants is often of paramount importance, but in some situations it is an essential condition. A typical example is a fair (secret) voting. We analyze in detailExpand
Extracting information from a qubit by multiple observers: toward a theory of sequential state discrimination.
TLDR
We discuss sequential unambiguous state-discrimination measurements performed on the same qubit. Expand
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