Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session A28: AMO Quantum Information
8:00 AM–11:00 AM,
Monday, March 4, 2019
BCEC Room: 161
Sponsoring Units: DQI DAMOP
Chair: Julian Leonard, ETH Zurich
Abstract: A28.00009 : Time/frequency high-dimensional entanglement via engineered parametric down conversion*
9:36 AM–9:48 AM
Agata M Branczyk
Here we present a new scheme for generating frequency-entangled photon pairs in parametric down-conversion (PDC) processes. By means of our novel non-linearity engineering technique, we deterministically choose the orientation of each ferroelectric domain of a poled crystal to tailor its phase-matching function as a multi-peaked function. The photons produced in such crystals emerge in a coherent superposition of an arbitrary number of orthogonal spectral Schmidt modes, allowing us to explore high-dimensional Hilbert spaces.
Our technique can easily be implemented as requires no additional components respect to a standard PDC setup, it’s highly compatible with other DoF encodings, and can be adapted to integrated waveguide sources.
*EPSRC Council (EP/N002962/1,EP/L015110/1).
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