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7 papers · 2 filters
Non-commutative graphs in the Fock space over one-particle Hilbert space
G. G. Amosov, A. S. Mokeev
In the present paper we continue our study of non-commutative operator graphs in infinite-dimensional spaces. We consider examples of the non-commutative operator graphs generated…
Active beam splitting attack applied to differential phase shift quantum key distribution protocol
A. S. Avanesov, D. A. Kronberg, A. N. Pechen
The differential phase shift quantum key distribution protocol is of high interest due to its relatively simple practical implementation. This protocol uses trains of coherent puls…
Variational autoencoder reconstruction of complex many-body physics
I. Luchnikov, A. Ryzhov, P. -J. C. Stas +2
Given the notably increasing complexity of mathematical models to study realistic systems and their coupling to their environment that constrains their dynamics, both analytical ap…
Radiation trapping effect versus superradiance in quantum simulation of light-matter interaction
S. V. Remizov, A. A. Zhukov, W. V. Pogosov +1
We propose a realization of two remarkable effects of Dicke physics in quantum simulation of light-matter many-body interactions with artificial quantum systems. These effects are…
Separated Schmidt modes in the angular spectrum of biphotons
N. A. Borshchevskaia, F. Just, K. G. Katamadze +2
We prepare qudits based on angular multimode biphoton states by modulating the pump angular spectrum. The modes are prepared in the Schmidt basis and their intensity distributions…
Photon-number tomography of multimode states and positivity of the density matrix
Olga Man'ko, V. I. Man'ko
For one-mode and multimode light, the photon-number tomograms of Gaussian quantum states are explicitly calculated in terms of multivariable Hermite polynomials. Positivity of the…