on 29-07-2015
Niaz Ali Khan, University of Porto
29/07/2015, 12:00. * * * Please note exceptional time. * * *
Room P3.10, Pavilhão de Matemática, IST
We investigate the properties of entanglement between two modes of a free Dirac and Scaler Field as seen by two relatively accelerated parties. A uniformly accelerated observer is unable to access information about the whole of spacetime, therefore there is a loss of information and a corresponding degradation of entanglement. The entanglement degradation in the limit of infinite acceleration for the Dirac field asymptotically reaches a non-vanishing minimum value. While for the case of bososnic field, a bipartite system becomes fully seperable in the limit of infinite acceleration. This means that the state always remains entangled to a degree for fermionic field and can be used in quantum information tasks, such as teleportation, between parties in relative uniform acceleration. We also investigate the effect of relativity on a tripartite maximally entangled GHZ state
Quantum Computation and Information Seminar
Support: Phys-Info (IT), SQIG (IT), CFIF and CAMGSD, with support from FCT, FEDER and EU FP7, namely via projects PEst-OE/EEI/LA0008/2013, Landauer (GA 318287) and PAPETS (323901).