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Clock synchronization with pulsed single photon sources
Christopher Spiess, Fabian Steinlechner
Photonic quantum technology requires precise, time-resolved identification of photodetection events. In distributed quantum networks with spatially separated and drifting time refe…
Maximizing the Validity of the Gaussian Approximation for the biphoton State from Parametric Downconversion
Baghdasar Baghdasaryan, Fabian Steinlechner, Stephan Fritzsche
Spontaneous parametric down-conversion (SPDC) is widely used in quantum applications based on photonic entanglement. The efficiency of photon pair generation is often characterized…
Spectral Properties of Transverse Laguerre-Gauss Modes in Parametric Down-Conversion
Carlos Sevilla-Gutiérrez, Varun Raj Kaipalath, Baghdasar Baghdasaryan +3
The first color photos of the parametric down-conversion (PDC) emission cone illustrate the correlation of longitudinal- and transverse momentum in the process, i.e., wavelength-de…
Generalized description of the spatio-temporal biphoton State in spontaneous parametric down-conversion
Baghdasar Baghdasaryan, Carlos Sevilla-Gutiérrez, Fabian Steinlechner +1
Spontaneous parametric down-conversion (SPDC) is a widely used source for photonic entanglement. Years of focused research have led to a solid understanding of the process, but a c…
High-Dimensional Entanglement for Quantum Communication in the Frequency Domain
Meritxell Cabrejo Ponce, André Luiz Marques Muniz, Marcus Huber +1
High-dimensional photonic entanglement is a promising candidate for error-protected quantum information processing with improved capacity. Encoding high-dimensional qudits in the c…
Ultrabright Polarization-Entangled Photon Pair Source for Frequency-Multiplexed Quantum Communication in Free-Space
Emma Brambila, Rodrigo Gómez, Riza Fazili +2
The distribution of entanglement via satellite links will drastically extend the reach of quantum networks. Highly efficient entangled photon sources are an essential requirement t…