9 citations · 14 across the 7 of their papers we have counts for
7 papers
An ultra-bright, highly-scalable, squeezed light source for hybrid quantum photonics
Kai-Hong Luo, Denis Kopylov, Florian Lütkewitte +8
Hybrid quantum photonics seeks to combine the complementary advantages of continuous- and discrete-variable quantum optics. This typically entails photon-counting measurements on e…
Gain-induced spectral non-degeneracy in type-II parametric down-conversion
Behnood Taheri, Denis Kopylov, Manfred Hammer +3
We demonstrate the novel effect of gain-induced spectral shifts in the type-II parametric down-conversion (PDC) process, which results in a transition from degenerate to non-degene…
Bipartite entanglement extracted from multimode squeezed light generated in lossy waveguides
Denis A. Kopylov, Torsten Meier, Polina R. Sharapova
Entangled two-mode Gaussian states constitute an important building block for continuous variable quantum computing and communication protocols. In this work, we theoretically stud…
Multiphoton, multimode state classification for nonlinear optical circuits
Denis A. Kopylov, Christian Offen, Laura Ares +5
We introduce a new classification of multimode states with a fixed number of photons. This classification is based on the factorizability of homogeneous multivariate polynomials an…
Spectral and temporal properties of type-II parametric down-conversion: The impact of losses during state generation
Denis A. Kopylov, Michael Stefszky, Torsten Meier +2
In this paper, we theoretically study spectral and temporal properties of pulsed spontaneous parametric down-conversion (SPDC) generated in lossy waveguides. Our theoretical approa…
Theory of Multimode Squeezed Light Generation in Lossy Media
Denis A. Kopylov, Torsten Meier, Polina R. Sharapova
A unified theoretical approach to describe the properties of multimode squeezed light generated in a lossy medium is presented. This approach is valid for Markovian environments an…
Accelerating the analysis of optical quantum systems using the Koopman operator
Anna Hunstig, Sebastian Peitz, Hendrik Rose +1
The prediction of photon echoes is a crucial technique for understanding optical quantum systems. However, it typically requires numerous simulations with varying parameters and in…