2 papers
quant-ph2008
Proof of the Orthogonal Measurement Conjecture for Qubit States
Andreas Keil
The accessible information of general signal states is obtained by performing a generalized measurement. In the case that the signal alphabet consists of two states of a qubit syst…
quant-ph2006
Spatial Entanglement of Bosons in Thermal Equilibrium
Dagomir Kaszlikowski, Andreas Keil, Marcin Wiesniak +1
We investigate spatial entanglement in a system of spinless non-interacting bosons in a one dimensional harmonic trap described by the grand canonical ensemble. We find the lower b…