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28 papers · 2 filters
Mapping photonic entanglement into and out of a quantum memory
K. S. Choi, H. Deng, J. Laurat +1
Recent developments of quantum information science critically rely on entanglement, an intriguing aspect of quantum mechanics where parts of a composite system can exhibit correlat…
Quantum serial turbo-codes
David Poulin, Jean-Pierre Tillich, Harold Ollivier
We present a theory of quantum serial turbo-codes, describe their iterative decoding algorithm, and study their performances numerically on a depolarization channel. Our constructi…
Finite de Finetti theorem for conditional probability distributions describing physical theories
Matthias Christandl, Ben Toner
We work in a general framework where the state of a physical system is defined by its behaviour under measurement and the global state is constrained by no-signalling conditions. W…
Entangling Power of an Expanding Universe
Greg Ver Steeg, Nicolas C. Menicucci
We show that entanglement can be used to detect spacetime curvature. Quantum fields in the Minkowski vacuum are entangled with respect to local field modes. This entanglement can b…
Optical pumping via incoherent Raman transitions
A. D. Boozer, R. Miller, T. E. Northup +2
A new optical pumping scheme is presented that uses incoherent Raman transitions to prepare a trapped Cesium atom in a specific Zeeman state within the 6S_{1/2}, F=3 hyperfine mani…
Belief propagation algorithm for computing correlation functions in finite-temperature quantum many-body systems on loopy graphs
David Poulin, Ersen Bilgin
Belief propagation -- a powerful heuristic method to solve inference problems involving a large number of random variables -- was recently generalized to quantum theory. Like its c…