1.3k citations · 2.7k across the 23 of their papers we have counts for
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Continuous-wave squeezed states of light via 'up-down' self-phase modulation
Amrit Pal Singh, Stefan Ast, Moritz Mehmet +2
Continuous-wave (cw) squeezed states of light have applications in sensing, metrology and secure communication. In recent decades their efficient generation has been based on param…
Beating the standard sensitivity-bandwidth limit of cavity-enhanced interferometers with internal squeezed-light generation
Mikhail Korobko, Lisa Kleybolte, Stefan Ast +3
The shot-noise limited peak sensitivity of cavity-enhanced interferometric measurement devices, such as gravitational-wave detectors, can be improved by increasing the cavity fines…
Gaussian entanglement distribution with gigahertz bandwidth
Stefan Ast, Melanie Ast, Moritz Mehmet +1
The distribution of entanglement with Gaussian statistic can be used to generate a mathematically-proven secure key for quantum cryptography. The distributed secret key rate is lim…
High-bandwidth squeezed light at 1550 nm from a compact monolithic PPKTP cavity
Stefan Ast, Moritz Mehmet, Roman Schnabel
We report the generation of squeezed vacuum states of light at 1550 nm with a broadband quantum noise reduction of up to 4.8 dB ranging from 5 MHz to 1.2 GHz sideband frequency. We…
Continuous-wave non-classical light with GHz squeezing bandwidth
Stefan Ast, Aiko Samblowski, Moritz Mehmet +3
Squeezed states can be employed for entanglement-based continuous-variable quantum key distribution, where the secure key rate is proportional to the bandwidth of the squeezing. We…
Squeezed light at 1550 nm with a quantum noise reduction of 12.3 dB
Moritz Mehmet, Stefan Ast, Tobias Eberle +3
Continuous-wave squeezed states of light at the wavelength of 1550 nm have recently been demonstrated, but so far the obtained factors of noise suppression still lag behind today's…