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Coherent transport by adiabatic passage has recently been suggested as a high-fidelity technique to engineer the centre-of-mass state of single atoms in inhomogenous environments. While the basic theory behind this process is well…

Quantum Physics · Physics 2015-03-19 T. Morgan , B. O'Sullivan , Th. Busch

Attosecond interferometry (AI) is an experimental technique based on ionizing a system with an attosecond pulse train in the presence of an assisting laser. This assisting laser provides multiple pathways for the photoelectron wave packet…

Chemical Physics · Physics 2020-10-07 Denis Jelovina , Armin Scrinzi , Hans Jakob Wörner , Axel Schild

We extend the powerful frequency-domain analysis of femtosecond two-photon absorption to the intermediate-field regime, which involves both two- and four-photon transitions. Consequently, we find a broad family of shaped pulses that enhance…

Atomic Physics · Physics 2008-02-20 Lev Chuntonov , Leonid Rybak , Andrey Gandman , Zohar Amitay

We develop a multi-photon adiabatic passage to realize a highly efficient Rydberg excitation in a four-level ladder-type atomic system. The adiabatic passage is based on the existence of a novel quasi-dark state in the cascade excitation…

Atomic Physics · Physics 2015-06-23 Jing Qian , Jingjing Zhai , Lu Zhang , Weiping Zhang

We study theoretically electron transients in semiconductor alloys excited by light pulses shorter than 100 femtoseconds and tuned above the absorption edge during and shortly after the pulse, when disorder scattering is dominant. We use…

Disordered Systems and Neural Networks · Physics 2016-08-16 A. Kalvová , B. Velický

The emission of above-ionization-threshold harmonics results from the recombination of two electron wavepackets moving along a "short" and a "long" trajectory in the atomic continuum. Attosecond pulse train generation has so far been…

Optics · Physics 2015-05-19 J. E. Kruse , P. Tzallas , E. Skantzakis , D. Charalambidis

We describe analytically and numerically the process of population transfer by stimulated Raman adiabatic passage through a bright state when the pulses propagate in a medium. Limitations of the adiabaticity are analyzed and interpreted in…

Quantum Physics · Physics 2015-05-13 G. G. Grigoryan , G. V. Nikoghosyan , T. Halfmann , Y. T. Pashayan-Leroy , C. Leroy , S. Guérin

Energy level structure and direct light absorption in a cylindrical quantum dot, having thin falciform cross section, are studied within the framework of the adiabatic approximation. An analytical expression for the energy spectrum of the…

Mesoscale and Nanoscale Physics · Physics 2015-05-08 Karen G. Dvoyan , David B. Hayrapetyan , Eduard M. Kazaryan , Ani A. Tshantshapanyan

Adiabatic manipulation of the quantum state is an essential tool in modern quantum information processing. Here we demonstrate the speed-up of the adiabatic population transfer in a three-level superconducting transmon circuit by…

Quantum Physics · Physics 2019-11-18 Antti Vepsäläinen , Sergey Danilin , Gheorghe Sorin Paraoanu

The development of advanced quantum technologies and the quest for a deeper understanding of many-particle quantum mechanics requires control over the quantum state of interacting particles to a high degree of fidelity. However, the quickly…

Quantum Physics · Physics 2016-03-17 Albert Benseny , Jérémie Gillet , Thomas Busch

Characterizing the quantum state of intense light fields on sub-cycle timescales remains beyond the reach of existing methods. Here, we show that attosecond streaking provides direct, phase-sensitive access to the quantum properties of the…

Quantum Physics · Physics 2026-04-16 En-Rui Zhou , Yi-Jia Mao , Pei-Lun He , Feng He

Propagation of short laser pulses in a medium of Lambda-atoms in the intuitive sequence and under conditions of adiabatic following is studied. The regime of superluminal propagation is obtained and the conditions of efficient population…

Atomic Physics · Physics 2009-01-28 G. Grigoryan , G. Nikogosyan , T. Halfmann

We study the light absorption and energy transferring in a donor-acceptor system with a bionic structure. In the optimal case with uniform couplings, it is found that the quantum dynamics of this seemingly complicated system is reduced as a…

Biological Physics · Physics 2012-04-13 H. Dong , D. Z. Xu , C. P. Sun

With the recently introduced particle interpretation of the double-slit experiment for light fields [Phys. Rev. Lett. 134, 13360 (2025)], all related interference phenomena can be reinterpreted in terms of light particle states that either…

The propagation of a step pulse through a thick resonant absorber with homogeneously broadened absorption line is considered. It is shown that a specific subradiant state is naturally developed in the absorber due to the formation of the…

Quantum Physics · Physics 2015-06-18 R. N. Shakhmuratov

We analyze electromagnetically induced transparency and light storage in an ensemble of atoms with multiple excited levels (multi-Lambda configuration) which are coupled to one of the ground states by quantized signal fields and to the…

Quantum Physics · Physics 2009-11-11 Juergen Appel , K. -P. Marzlin , A. I. Lvovsky

The influence of photon-momentum recoil on adiabatic population transfer in an atomic three-level lambda system is studied. It is shown that the Doppler frequency shifts, due to atomic motion can play an important role in adiabatic…

Quantum Physics · Physics 2016-11-03 R. G. Unanyan

The interaction between superconducting qubits and one-dimensional microwave transmission lines has been studied experimentally and theoretically in the past two decades. In this work, we investigate the spontaneous emission of an initially…

Quantum Physics · Physics 2020-03-11 E. Wiegand , B. Rousseaux , G. Johansson

We propose a scheme in which an arbitrary incidence can be made perfectly reflected/transmitted if a phase setup is adjusted under a specific condition. We analyze the intracavity field variation as well as the output field with changing…

Quantum Physics · Physics 2018-03-20 Miaodi Guo , Xuemei Su

We propose a two-dimensional interferometry based on electron wave packet interference with a cycle-shaped orthogonally polarized two-color laser field. With such method, sub-cycle and inter-cycle interferences can be disentangled into…

Atomic Physics · Physics 2015-06-04 Xinhua Xie
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