TY  - JOUR
AB  - Entangled two-mode Gaussian states constitute an important building block for continuous variable quantum computing and communication protocols. In this work, we theoretically study two-mode bipartite states, which are extracted from multimode light generated via type-II parametric down conversion (PDC) in lossy waveguides. For these states, we demonstrate that the squeezing quantifies entanglement and we construct a measurement basis, which results in the maximal bipartite entanglement. We illustrate our findings by numerically solving the spatial master equation for PDC in a Markovian environment. The optimal measurement modes are compared with two widely used broadband bases: the Mercer–Wolf basis (the first-order coherence basis) and the Williamson–Euler basis.
AU  - Kopylov, Denis A.
AU  - Meier, Torsten
AU  - Sharapova, Polina
DO  - 10.17619/UNIPB/1-2487
PB  - Universitätsbibliothek
DP  - Universität Paderborn
LA  - eng
PY  - 2026
SN  - 2835-0103
SP  - 1 Online-Ressource (Seite 1-7) : Illustrationen, Diagramme
T2  - APL Quantum
TI  - Bipartite entanglement extracted from multimode squeezed light generated in lossy waveguides: Denis A. Kopylov, Torsten Meier, and Polina R. Sharapova
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:466:2-57111
Y2  - 2026-01-30T13:06:29
ER  -