209 citations · 1.1k across the 41 of their papers we have counts for
30 papers · 1 filter
Excitation spectrum of a multilevel atom coupled with a dielectric nanostructure
N. A. Moroz, L. V. Gerasimov, A. D. Manukhova +1
We develop a microscopic calculation scheme for the excitation spectrum of a single-electron atom localized near a dielectric nanostructure. The atom originally has an arbitrary de…
Spatial dependence of fidelity for a two-qubit Rydberg-blockade quantum gate
Ivan Vybornyi, Leonid Gerasimov, Dmitriy Kupriyanov +2
We study the spatial performance of the entangling gate proposed by H. Levine et al. (Phys. Rev. Lett. 123, 170503 (2019)). This gate is based on a Rydberg blockade technique and c…
Coupled dynamics of spin qubits in optical dipole microtraps
L. V. Gerasimov, R. R. Yusupov, A. D. Moiseevsky +6
Single atoms in dipole microtraps or optical tweezers have recently become a promising platform for quantum computing and simulation. Here we report a detailed theoretical analysis…
Dynamics of a spin qubit in an optical dipole trap
L. V. Gerasimov, R. R. Yusupov, I. B. Bobrov +5
We present a theoretical investigation of coherent dynamics of a spin qubit encoded in hyperfine sublevels of an alkali-metal atom in a far off-resonant optical dipole trap. The qu…
Single collective excitation of an atomic array trapped along a waveguide: a study of cooperative emission for different atomic chain configurations
V. A. Pivovarov, L. V. Gerasimov, J. Berroir +4
Ordered atomic arrays trapped in the vicinity of nanoscale waveguides offer original light-matter interfaces, with applications to quantum information and quantum non-linear optics…
Quantum interface between light and a one-dimensional atomic system
Viacheslav A. Pivovarov, Alexandra S. Sheremet, Leonid V. Gerasimov +2
We investigate optimal conditions for the quantum interface between a signal photon pulse and one-dimensional chain consisting of a varied number of atoms. The tested object is phy…
Raman sideband cooling of a single atom in an optical dipole trap: Towards theoretical optimum in a three-dimensional regime
V. M. Porozova, L. V. Gerasimov, I. B. Bobrov +3
We clarify the optimal conditions for the protocol of Raman sideband cooling (RSC) of a single atom confined with a tightly focused far-off-resonant optical dipole trap (optical tw…
Light scattering from an atomic gas under conditions of quantum degeneracy
V. M. Porozova, L. V. Gerasimov, M. D. Havey +1
We consider a quantum theory of elastic light scattering from a macroscopic atomic sample existing in the Bose-Einstein condensate (BEC) phase. The dynamics of the optical excitati…
Light Scattering From an Atomic Array Trapped Near a One-Dimensional Nanoscale Waveguide: a Microscopic Approach
V. A. Pivovarov, A. S. Sheremet, L. V. Gerasimov +4
The coupling of atomic arrays and one-dimensional subwavelength waveguides gives rise to in- teresting photon transport properties, such as recent experimental demonstrations of la…
Mesoscopic coherence in light scattering from cold, optically dense and disordered atomic systems
D. V. Kupriyanov, I. M. Sokolov, M. D. Havey
Coherent effects manifested in light scattering from cold, optically dense and disordered atomic systems are reviewed from a primarily theoretical point of view. Development of the…
Large Bragg Reflection from One-Dimensional Chains of Trapped Atoms Near a Nanoscale Waveguide
N. V. Corzo, B. Gouraud, A. Chandra +4
We report experimental observations of large Bragg reflection from arrays of cold atoms trapped near a one-dimensional nanoscale waveguide. By using an optical lattice in the evane…
On a theory of light scattering from a Bose-Einstein condensate
Victoria Ezhova, Leonid Gerasimov, Dmitriy Kupriyanov
We consider a quantum theory of elastic light scattering from macroscopic atomic sample existing in the Bose-Einstein condensate (BEC) phase. Following to the second quantized form…
Two-photon coherent control of atomic collisions by light with entangled polarization
M. D. Havey, D. V. Kupriyanov, I. M. Sokolov
We describe a new method of coherent optical control of internal dynamics of atomic collisions by means of two correlated light beams having entangled polarizations. We show that i…
Coherent control of light transport in a dense and disordered atomic ensemble
A. S. Sheremet, D. F. Kornovan, L. V. Gerasimov +3
Light transport in a dense and disordered cold atomic ensemble, where the cooperation of atomic dipoles essentially modifies their coupling with the radiation modes, offers an alte…
A scaling law for light scattering from dense and cold atomic ensembles
I. M. Sokolov, A. S. Kuraptsev, D. V. Kupriyanov +2
We calculate the differential cross section of polarized light scattering from a cold and dense atomic ensemble. The regularities in the transformation of the cross section when in…
Quantum hologram of macroscopically entangled light via the mechanism of diffuse light storage
L. V. Gerasimov, I. M. Sokolov, D. V. Kupriyanov +1
In the present paper we consider a quantum memory scheme for light diffusely propagating through a spatially disordered atomic gas. The diffuse trapping of the signal light pulse c…
Coherent backscattering under conditions of electromagnetically induced transparency
I. M. Sokolov, D. V. Kupriyanov, M. D. Havey
We consider the influence of a resonant control field on weak localization of light in ultracold atomic ensembles. Both steady-state and pulsed light excitation are considered. We…
Microscopic Theory of Scattering of Weak Electromagnetic Radiation by a Dense Ensemble of Ultracold Atoms
I. M. Sokolov, D. V. Kupriyanov, M. D. Havey
Based on the developed quantum microscopic theory, the interaction of weak electromagnetic radiation with dense ultracold atomic clouds is described in detail. The differential and…
Electromagnetically induced transparency in inhomogeneously broadened Lambda-transition with multiple excited levels
O. S. Mishina, M. Scherman, P. Lombardi +7
Electromagnetically induced transparency (EIT) has mainly been modelled for three-level systems. In particular, a considerable interest has been dedicated to the Lambda-configurati…
Quantum memory for light via stimulated off-resonant Raman process: beyond the three-level Lambda-scheme approximation
Alexandra S. Sheremet, Leonid V. Gerasimov, Igor M. Sokolov +4
We consider a quantum memory scheme based on the conversion of a signal pulse into a long-lived spin coherence via stimulated off-resonant Raman process. For a storing medium consi…
Coherent control of diffuse light dynamics in an ultracold atomic gas
L. V. Gerasimov, I. M. Sokolov, D. V. Kupriyanov +2
We show that coherent multiple light scattering, or diffuse light propagation, in a disordered atomic medium, prepared at ultra-low temperatures, can be be effectively delayed in t…
Atomic quantum memories for light
A. S. Sheremet, O. S. Mishina, E. Giacobino +1
We consider the coherent stimulated Raman process developing in an optically dense and disordered atomic medium in application to the quantum memory scheme. Our theoretical model p…
Near-resonance Light Scattering from a High-density, Ultracold Atomic Rb Gas
S. Balik, A. L. Win, M. D. Havey +2
We report a combined experimental and theoretical investigation of near resonance light scattering from a high-density and ultracold atomic Rb gas. The atomic sample, having…
Light scattering and localization in an ultracold and dense atomic system
I. M. Sokolov, M. D. Kupriyanova, D. V. Kupriyanov +1
The quantum optical response of high density ultracold atomic systems is critical to a wide range of fundamentally and technically important physical processes. These include quant…