Publications (30)
High Harmonic Generation by Bright Squeezed Vacuum
Andrei Rasputnyi, Zhaopin Chen, Michael Birk +6
We observe non-perturbative high harmonic generation in solids driven by a macroscopic quantum state of light, bright squeezed vacuum (BSV), which we generate in a single spatiotem…
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…
Ring-shaped spectra of parametric down-conversion and entangled photons that never meet
Kirill Spasibko, Denis Kopylov, Tatiana Murzina +2
We report on the observation of an unusual type of parametric down-conversion. In the regime where collinear degenerate emission is in the anomalous range of group-velocity dispers…
Detection loss tolerant supersensitive phase measurement with an SU(1,1) interferometer
Mathieu Manceau, Gerd Leuchs, Farid Khalili +1
In an unseeded SU(1,1) interferometer composed of two cascaded degenerate parametric amplifiers, with direct detection at the output, we demonstrate a phase sensitivity overcoming…
Separable Schmidt modes of a non-separable state
Alessio Avella, Marco Gramegna, Alexander Shurupov +3
Two-photon states entangled in continuous variables such as wavevector or frequency represent a powerful resource for quantum information protocols in higher-dimensional Hilbert sp…
Attosecond-resolved quantum fluctuations of light and matter
Matan Even Tzur, Chen Mor, Noa Yaffe +10
Until recently, attosecond optical spectroscopy and quantum optics evolved along non-overlapping directions. In attosecond science, attosecond pulses have been regarded as classica…