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We study the conditions for coherent radiation of an electron bunch driven by a counterpropagating strong pulsed electromagnetic plane wave. We derive the spectrum of the coherent radiation and show that it is emitted backwards with respect…

Plasma Physics · Physics 2024-04-17 Evgeny Gelfer , Alexander Fedotov , Ondrej Klimo , Stefan Weber

We propose a novel general approximation to transform and simplify the description of a complex fully-quantized system describing the interacting light and matter. The method has some similarities to the time-dependent Born-Oppenheimer…

Quantum Physics · Physics 2021-07-01 Ivan Gonoskov , Stefanie Gräfe

Recently, intensely driven laser-matter interactions have been used to connect the fields of strong laser field physics with quantum optics by generating non-classical states of light. Here, we make a further key step and show the potential…

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 predicts that the hyperfine interaction in the excited state…

Quantum Physics · Physics 2010-09-29 A. S. Sheremet , O. S. Mishina , E. Giacobino , D. V. Kupriyanov

The coherent control of multi-partite quantum systems presents one of the central prerequisites in state-of-the-art quantum information processing. With the added benefit of inherent high-fidelity detection capability, atomic quantum…

Quantum Physics · Physics 2022-12-07 Jan Schütz , Alexander Martin , Sanah Laschinger , Gerhard Birkl

We discuss the use of incoherent light as a resource to control the atomic dynamics and review the proposed in Phys. Rev. A 84, 042106 (2011) method for a controlled transfer between any pure and mixed states of quantum systems using a…

Quantum Physics · Physics 2012-12-12 Alexander Pechen

We show that coherent harmonic focusing provides an efficient mechanism to boost all-optical signatures of quantum vacuum nonlinearity in the collision of high-intensity laser fields, thereby offering a promising route to their first…

High Energy Physics - Phenomenology · Physics 2020-07-28 Felix Karbstein , Alexander Blinne , Holger Gies , Matt Zepf

Starting from an initial pure quantum state, we present a strategy for reaching a target state corresponding to the extremum (maximum or minimum) of a given observable. We show that a sequence of pulses of moderate intensity, applied at…

Quantum Physics · Physics 2016-08-16 D. Sugny , A. Keller , O. Atabek , D. Daems , C. M. Dion , S. Guérin , H. R. Jauslin

In this paper, we investigate tunneling of conduction band electrons in a system of an asymmetric double quantum dot which interacts with an environment. First, we consider the case in which the system only interacts with the environment…

Quantum Physics · Physics 2013-11-14 B. Ahmadi , S. Salimi , A. S. Khorashad

Coherent responses of resonance atom layer to short optical pulse excitation are numerically considered. The inhomogeneous broadening of one-photon transition, the local field effect, and the substrate dispersion are involved into analysis.…

Optics · Physics 2015-06-26 Sergei O. Elyutin

In recent years, Born-Markov master equations based on tracing out the electromagnetic degrees of freedom have been extensively employed in the description of quantum optical phenomena originating from photon-mediated interactions in…

We study the dynamics of multipulse solutions in mode-locked lasers in presence of time-delayed feedback stemming, e.g., from reflections upon optical elements, and carrier dynamics. We demonstrate that the dynamics of such a high…

Pattern Formation and Solitons · Physics 2025-03-21 Thomas G. Seidel , Julien Javaloyes , Svetlana V. Gurevich

High-visibility interference of photon echoes generated in spatially separated solid-state atomic ensembles is demonstrated. The solid state ensembles were LiNbO$_3$ waveguides doped with Erbium ions absorbing at 1.53 $\mu$m. Bright…

Optical coherent states are experimentally realizable continuous variable quantum states of which preparation by lasers, as well as its manipulation and monitoring by linear optical gadgets are well established. We propose a strategy to…

Quantum Physics · Physics 2024-09-27 Ankita Pathak , Madan Singh Chauhan , Ravi S. Singh

We analytically describe the strong-field light-electron interaction using a quantized coherent laser state with arbitrary photon number. We obtain a light-electron wave function which is a closed-form solution of the time-dependent…

Atomic Physics · Physics 2017-03-20 I. A. Gonoskov , N. Tsatrafyllis , I. K. Kominis , P. Tzallas

We give a quantum information-theoretic description of an ideal propagating CW laser field and reinterpret typical quantum-optical experiments in light of this. In particular we show that contrary to recent claims [T. Rudolph and B. C.…

Quantum Physics · Physics 2009-11-07 S. J. van Enk , Christopher A. Fuchs

Two scenarios for the penetration of relativistically intense laser radiation into an overdense plasma, accessible by self-induced transparency, are presented. For supercritical densities less than 1.5 times the critical one, penetration of…

Plasma Physics · Physics 2009-11-06 M. Tushentsov , F. Cattani , A. Kim , D. Anderson , M. Lisak

We propose and analyze a scheme for "on demand" creation of coherent superposition of meta-stable states in a tripod-structured atom using frequency-chirped laser pulses. Negligible excitation of the atoms during the creation of the…

Quantum Physics · Physics 2015-05-28 N. Sandor , J. S. Bakos , Zs. Sörlei , G. P. Djotyan

We demonstrate light-induced formation of coherence in a cold atomic gas system that utilizes the suppression of a competing density wave (DW) order. The condensed atoms are placed in an optical cavity and pumped by an external optical…

Quantum Gases · Physics 2018-12-05 Christoph Georges , Jayson G. Cosme , Ludwig Mathey , Andreas Hemmerich

We study the impact of double and triple scattering contributions on coherent backscattering of laser light from saturated isotropic atoms, in the helicity preserving polarization channel. Using the recently proposed diagrammatic pump-probe…

Quantum Physics · Physics 2015-04-28 Andreas Ketterer , Andreas Buchleitner , Vyacheslav N. Shatokhin