Samuelsson, Peter

Date: Monday, October 13, 2014
Time: 16:15
Place: University of Geneva, 24 Quai E. Ansermet, Salle 234
Host:  Christian Flindt

Decoherence-free test of orbital entanglement in quantum dot systems

Peter Samuelsson
Department of Physics, Lund University, Sweden

We propose a quantum-dot based scheme, free of decoherence, for generation and detection of pairs of orbitally entangled and spatially separated electrons. The electrons are entangled, via two-particle interference, and transferred to the detectors during a single co-tunneling event, making the scheme insensitive to charge noise. We show that for sufficiently weak detector tunnel couplings, the probabilities for joint detection of the entangled electrons can be obtained via real-time charge counting, opening up for a Bell inequality test based on short-time correlations.