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Stobinska: Quantum state engineering of multiphoton quantum superpositionsExport this event to calendar

Monday, April 28, 2014 — 11:00 AM to 12:00 PM EDT

Magdalena Stobinska, University of Gdańsk/Polish Academy of Sciences, Warsaw

We discuss a device capable of filtering out two-mode states of light with mode populations differing by more than a certain threshold, while not revealing which mode is more populated. It would allow engineering of macroscopic quantum states of light in a way which is preserving specific superpositions. As a result, it would enhance optical phase estimation with these states. We propose an optical scheme, which is a relatively simple, albeit non-ideal, operational implementation of such a filter.

As a side remark, we show that the principle of action of the device allows to demonstrate a quantum walk with many steps avoiding beam splitter cascades.

Location 
QNC - Quantum Nano Centre
1201
200 University Avenue West
Waterloo, ON N2L 3G1
Canada

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