Condensed Matter Physics (CMP)
Abstract
We propose to develop the tools to implement high-fidelity fluorescence detection of single cavity Rydberg polaritons, which are the central ingredient of the photonic quantum materials platform. This new tool will not only enable preparation and study of substantially more sophisticated quantum many-body states, but is indeed the essential ingredient standing between the cavity Rydberg polariton platform and its application as a truly scalable quantum repeater. The detection process is three steps: (1) shelving of a Rydberg polariton into a collective Rydberg excitation by adiabatic turn-off the Rydberg control field; (2) blockade-enhanced cavity probing of the shelved Rydberg excitation by EIT on a lower-lying (n~60) Rydberg state, to minimize the interactions between the probe polaritons, without substantially reducing interactions between probe- and shelved- Rydbergs; (3) readout of the shelved polariton by adiabatic turn-on of the Rydberg control field. (3) is only necessary for non-destructive detection of the polaritonÑhigher detection fidelity can be achieved by EIT-probing for longer, at the expense of decoherence of the shelved collective excitation.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 09, 2020
- Source ID
- W911NF2010089
Entities
People
- Jonathan Simon
Organizations
- Army Contracting Command
- United States Army
- University of Chicago