[quantum-info] PIQuDos Seminar on Monday: Earl Campbell

[Markus Mueller]

Dear all,

please join us on Monday at 4pm for a quantum information seminar by 
Earl Campbell.


Title: *Continuous-variable entanglement distillation and 
non-commutative central limit theorems*
Speaker: *Earl Campbell* (Freie Universitaet Berlin)

Abstract:
Entanglement distillation transforms weakly entangled noisy states into 
highly entangled states, a primitive to be used in quantum repeater 
schemes and other protocols designed for quantum communication and key 
distribution. In this work, we present a comprehensive framework for 
continuous-variable entanglement distillation schemes that convert noisy 
non-Gaussian states into Gaussian ones in many iterations of the 
protocol. Instances of these protocols include the recursive Gaussifier 
protocol and the pumping Gaussifier protocol. The flexibility of these 
protocols give rise to several beneficial trade-offs related to success 
probabilities or memory requirements that can be adjusted to reflect 
experimental specifics. Despite these protocols involving measurements, 
we relate the convergence in this protocols to new instances of 
non-commutative central limit theorems. Implications of the findings for 
quantum repeater schemes are discussed.

Date: Monday, April 15, 2013 - 4:00 pm
Location: Time Room (294)


Best,
Markus

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