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quant-ph2026

Single Spatio-Temporal Mode Bright Twin-Beam Source Across the Near- and Mid-Infrared

Gabriel Demontigny, Patrick Cusson, Amauri Perraton Elorza +6

We introduce an ultrafast, bright, entangled twin-beam source generated by type-0 parametric down-conversion in periodically-poled lithium niobate at MHz repetition rate, with cont…

quant-ph2025

Kerr-induced non-Gaussianity of ultrafast bright squeezed vacuum

Andrei Rasputnyi, Ilya Karuseichyk, Gerd Leuchs +2

Non-Gaussian states of light are a critical resource for fault-tolerant quantum computing and enhanced metrology, but are typically faint and often obtained via post-selection. Her…

quant-ph2025

Real-Time Monitoring of Multimode Squeezing

Mahmoud Kalash, Aditya Sudharsanam, M. H. M. Passos +2

Multimode squeezed light is a key resource for high-dimensional quantum technologies, enhancing metrological sensitivity, boosting communication security, and enabling parallel pro…

quant-ph2025

Efficient detection of spectrally multimode squeezed light through optical parametric amplification

Mahmoud Kalash, Ui-Nyung Han, Young-Sik Ra +1

Multimode squeezed light is a key resource for high-dimensional photonic quantum technologies, enabling applications in quantum-enhanced sensing, quantum communication, and quantum…

quant-ph2025

Driving electrons at needle tips strongly with quantum light

Jonas Heimerl, Andrei Rasputnyi, Jonathan Pölloth +3

Attosecond science relies on driving electrons after photoemission with the strong optical field of a laser pulse, representing an intense classical coherent state of light. Bright…

quant-ph2025

Tunable N-level EIT: Deterministic Generation of Optical States with Negative Wigner Function

Sutapa Ghosh, Alexey Gorlach, Chen Mechel +3

Strong optical nonlinearities are key to a range of technologies, particularly in the generation of photonic quantum states. The strongest nonlinearity in hot atomic vapors origina…