Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Shishkov, V. A."'
Recently, systems with strong coupling between electronic and vibrational degrees of freedom attract a great attention. In this work, we consider the transient dynamics of the system consisting of strongly coupled vibron and exciton driven by externa
Externí odkaz:
http://arxiv.org/abs/2212.11060
Light with high mutual correlations at different frequencies can be used to create heralded single-photon sources, which may serve as the basic elements of existing quantum cryptography and quantum teleportation schemes. One of the important examples
Externí odkaz:
http://arxiv.org/abs/2201.09821
Publikováno v:
Quantum 6, 719 (2022)
The theoretical description of non-equilibrium Bose--Einstein condensate (BEC) is one of the main challenges in modern statistical physics and kinetics. The non-equilibrium nature of BEC makes it impossible to employ the well-established formalism of
Externí odkaz:
http://arxiv.org/abs/2111.09132
Creation of entangled states of quantum systems with low decoherence rates is a cornerstone in practical implementation of quantum computations. Processes of separate dephasing in each qubit in experimentally feasible systems is commonly accepted to
Externí odkaz:
http://arxiv.org/abs/2012.05650
Autor:
Vinogradov, A. P., Shishkov, V. Yu., Doronin, I. V., Andrianov, E. S., Pukhov, A. A., Lisyansky, A. A.
Publikováno v:
Opt. Express, 29, No. 18, 2501-2520 (2021)
We develop a quantum theory of atomic Rayleigh scattering. Scattering is considered as a relaxation of incident photons from a selected mode of free space to the reservoir of the other free space modes. Additional excitations of the reservoir states
Externí odkaz:
http://arxiv.org/abs/2010.11845
Autor:
Shishkov, V. Yu., Andrianov, E. S., Pukhov, A. A., Vinogradov, A. P., Orlov, S. N., Polivanov, Yu. N., Fabelinsky, V. I., Kozlov, D. N., Smirnov, V. V., Lisyansky, A. A.
Publikováno v:
Phys. Rev. B 103, 035408 (2021)
In surface-enhanced Raman scattering experiments that use plasmonic nanostructures as substrates, the scattering spectrum contains a broad background usually associated with photoluminescence. This background exists above and below the frequency of t
Externí odkaz:
http://arxiv.org/abs/2007.14949
Publikováno v:
Phys. Rev. Lett. 122, 153905 (2019)
We propose a method for increasing the Raman scattering from an ensemble of molecules by up to four orders of magnitude. Our method requires an additional coherent source of IR radiation with the half-frequency of the Stokes shift. This radiation exc
Externí odkaz:
http://arxiv.org/abs/1901.11076
Akademický článek
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Publikováno v:
Phys. Rev. E 98, 022132 (2018)
We study the evolution of an open quantum system described by a dynamical semigroup having the Lindblad superoperator as a generator. This generator may have an eigenfunction with a unity eigenvalue, referred to as a constant of motion (COM). An open
Externí odkaz:
http://arxiv.org/abs/1803.04083
The phenomenon of upconversion, in which a system sequentially absorbs two or more photons and emits a photon of a higher frequency, has been used in numerous applications. These include high-resolution non-destructive bioimaging, deep-penetrating ph
Externí odkaz:
http://arxiv.org/abs/1706.08981