How to optimize the absorption of two entangled photons
Edoardo G. Carnio, Andreas Buchleitner, Frank Schlawin
SciPost Phys. Core 4, 028 (2021) · published 15 October 2021
- doi: 10.21468/SciPostPhysCore.4.4.028
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Abstract
We investigate how entanglement can enhance two-photon absorption in a three-level system. First, we employ the Schmidt decomposition to determine the entanglement properties of the optimal two-photon state to drive such a transition, and the maximum enhancement which can be achieved in comparison to the optimal classical pulse. We then adapt the optimization problem to realistic experimental constraints, where photon pairs from a down-conversion source are manipulated by local operations such as spatial light modulators. We derive optimal pulse shaping functions to enhance the absorption efficiency, and compare the maximal enhancement achievable by entanglement to the yield of optimally shaped, separable pulses.
Cited by 12
Authors / Affiliations: mappings to Contributors and Organizations
See all Organizations.- 1 Edoardo Carnio,
- 1 Andreas Buchleitner,
- 2 3 4 Frank Schlawin
- 1 Albert-Ludwigs-Universität Freiburg / University of Freiburg
- 2 University of Oxford
- 3 Universität Hamburg / University of Hamburg [UH]
- 4 Max-Planck-Institut für Struktur und Dynamik der Materie / Max Planck Institute for the Structure and Dynamics of Matter [MPSD]