5 papers
Controlling Hong-Ou-Mandel antibunching via parity governed local spectral shaping of biphoton states
Mikhail Guselnikov, Alexei D. Kiselev, Andrei Gaidash +2
We investigate into experimentally detectable effects such as the Hong-Ou-Mandel (HOM) bunching and antibunching. These regimes can be characterized using the symmetry degree param…
Iterative -gate-based protocol for squeezed Schrödinger cat state engineering
Roman Goncharov, N. G. Veselkova, Alexei D. Kiselev
Squeezed optical Schrödinger cat states constitute a key resource for both fundamental tests of quantum theory and up-to-date quantum technologies. We propose a measurement-assist…
Vulnerabilities of quantum key distribution systems in visible range
Boris Nasedkin, Azat Ismagilov, Vladimir Chistiakov +6
In this paper we investigate spectral vulnerabilities in quantum key distribution systems arising from the use of shorter-wavelength radiation in the 400-800 nm range, with particu…
Creation and manipulation of Schrödinger cat states based on semiclassical predictions
N. G. Veselkova, Roman Goncharov, Alexei D. Kiselev
We consider the generation of Schr{ö}dinger cat states using a quantum measurement-induced logical gate where entanglement between the input state of the target oscillator and the…
Lindblad dynamics of open multi-mode bosonic systems: Algebra of bilinear superoperators, exceptional points and speed of evolution
Andrei Gaidash, Alexei D. Kiselev, Anton Kozubov +1
We develop the algebraic method based on the Lie algebra of quadratic combinations of left and right superoperators associated with matrices to study the Lindblad dynamics of multi…