Numerical Analysis of Parametric Downconversion
- Parametric downconversion (PDC) is a popular technique to produce twin beams of photons that are entangled in multiple degrees of freedom. The generated states form the basis for numerous applications that require entanglement. An exact quantification of this resource is therefore essential, for instance for quantum cryptography that relies on a complete knowledge of the correlation contained in the state. While the determination of an entanglement monotone for the PDC process is only possible analytically in special cases, an exact calculation must usually be performed numerically. Recent work by Mikhailova et al. [2] analyses a certain class of PDC states for which the concurrence entanglement measure can be obtained by an analytical approximation. In this contribution, we analyse the validity of the approximation by comparison with exact numerical methods.
Author: | Wolfgang MauererORCiDGND, Christine SilberhornORCiDGND |
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DOI: | https://doi.org/10.1063/1.3131312 |
Parent Title (English): | AIP Conference Proceedings |
Publisher: | AIP Publishing |
Document Type: | conference proceeding (article) |
Language: | English |
Year of first Publication: | 2009 |
Release Date: | 2022/05/10 |
Volume: | 1110 |
Issue: | 1 |
Article Number: | 220 |
Konferenzangabe: | Proc. 8th Int. Conf. on Quantum Comm., Meas. and Comp., Calgary, Kanada (2008) |
Institutes: | Fakultät Informatik und Mathematik |
Fakultät Informatik und Mathematik / Labor für Digitalisierung (LFD) | |
Begutachtungsstatus: | peer-reviewed |
Publication: | Externe Publikationen |
research focus: | Digitalisierung |
Licence (German): | Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG |