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13 papers · 2 filters
Local/Non-Local Complementarity in Topological Effects
Yakir Aharonov, Benni Reznik
In certain topological effects the accumulation of a quantum phase shift is accompanied by a local observable effect. We show that such effects manifest a complementarity between n…
Representation of the Resonances of a Relativistic Quantum Field Theoretical Model in Lax-Phillips Scattering Theory
Y. Strauss, L. P. Horwitz
We apply the quantum Lax-Phillips scattering theory to a relativistically covariant quantum field theoretical form of the (soluble) Lee model. We construct the translation represen…
Quantum Communication Protocol Employing Weak Measurements
Alonso Botero, Benni Reznik
We propose a communication protocol exploiting correlations between two events with a definite time-ordering: a) the outcome of a {\em weak measurement} on a spin, and b) the outco…
Nonlocal Aspects of a Quantum Wave
Y. Aharonov, L. Vaidman
Various aspects of nonlocality of a quantum wave are discussed. In particular, the question of the possibility of extracting information about the relative phase in a quantum wave…
Back-Reaction of Clocks and Limitations on Observability in Closed Systems
Aharon Casher, Benni Reznik
Measurements are ordinarily described with respect to absolute "Newtonian" time. In reality however, the switching-on of the measuring device at the instance of the measurement req…
Exact and Asymptotic Measures of Multipartite Pure State Entanglement
Charles H. Bennett, Sandu Popescu, Daniel Rohrlich +2
In an effort to simplify the classification of pure entangled states of multi (m) -partite quantum systems, we study exactly and asymptotically (in n) reversible transformations am…