Berlin 2012 – scientific programme
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DY: Fachverband Dynamik und Statistische Physik
DY 4: Quantum Dynamics, Decoherence, and Quantum Information
DY 4.4: Talk
Monday, March 26, 2012, 15:45–16:00, MA 001
Entanglement properties of conditional states — •Juan-Diego Urbina1 and Carlos Viviescas2 — 1University of Regensburg, Germany — 2National University, Colombia
We present a rigorous mathematical result for the amount of multipartite entanglement in conditional states of open quantum systems just after the state of their bosonic environment is measured.
Our main result is a closed formula providing a scaling relation between the probability distribution of experimental outcomes and the amount of entanglement in the state of the central system.
We use this connection to study the distribution of entanglement over the physical ensemble of experimental outcomes, and briefly discuss other consequences of the scaling formula.