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High degrees of intensity correlation between two independent lasers were observed after propagation through a rubidium vapor cell in which they generate Electromagnetically Induced Transparency (EIT). As the optical field intensities are…

Quantum Physics · Physics 2016-08-14 L. S. Cruz , D. Felinto , J. G. Aguirre Gómez , M. Martinelli , P. Valente , A. Lezama , P. Nussenzveig

The present work explores quantitative limits to the Single-Active Electron (SAE) approximation, often used to deal with strong-field ionization and subsequent attosecond dynamics. Using a time-dependent multi\-configuration approach,…

Atomic Physics · Physics 2025-11-04 Jean-Nicolas Vigneau , Tung Nguyen-Dang , Eric Charron , Osman Atabek

We study tunneling between a localized defect state and a conduction band in the presence of strong electron-electron and electron-phonons interactions. We derive the tunneling rate as a function of the position of the defect energy level…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 D. Mozyrsky , I. Martin , A. Shnirman , M. B. Hastings

We theoretically study frustrated double ionization (FDI) of atoms subjected to intense circularly polarized laser pulses using a three-dimensional classical model. We find a novel "knee" structure of FDI probability as a function of…

Atomic Physics · Physics 2021-05-26 HuiPeng Kang , Shi Chen , Jing Chen , Gerhard G. Paulus

We investigate bipartite entanglement between two distant parties, \textit{A} and \textit{B}, comprising local magnetic impurities (or qudits) induced by the quench through \textit{sd} exchange in a field-effect-transistor geometry. A…

Mesoscale and Nanoscale Physics · Physics 2024-01-30 Son-Hsien Chen

We present a theoretical investigation of ion-induced Coulomb explosion imaging (CEI) of pyridazine molecules driven by energetic C$^{5+}$ projectiles, using time-dependent density-functional theory (TDDFT) with Ehrenfest nuclear dynamics.…

Chemical Physics · Physics 2025-12-10 Misa Viveiros , Samuel S. Taylor , Cody Covington , Kálmán Varga

Gas turbine superalloys experience hot corrosion, driven by factors including corrosive deposit flux, temperature, gas composition, and component material. The full mechanism still needs clarification and research often focuses on…

Materials Science · Physics 2024-02-13 A. Varghese , M. Arana-Catania , S. Mori , A. Encinas-Oropesa , J. Sumner

Attosecond dynamics in strong-field tunnel ionization are encoded in intricate holographic patterns in the photoelectron momentum distributions (PMDs). These patterns show the interference between two or more superposed quantum electron…

The uncorrelated (``sequential'') and correlated (``nonsequential'') double ionization of the H2 molecule in strong laser pulses is investigated using the tools of nonlinear dynamics. We focus on the phase-space dynamics of this system,…

Chaotic Dynamics · Physics 2009-11-30 François Mauger , Cristel Chandre , T. Uzer

Tunneling ionization is one of the fundamental electron dynamics, which has wide applications in ultrafast physics. When frustrated tunneling ionization (FTI) is considered, the tunneling rate is not equivalent to ionization rate. However,…

Optics · Physics 2022-02-21 Lifeng Wang , Hao Teng , Fei Li , Bingbing Wang , Xiaoxin Zhou , Peng He , Zhiyi Wei

We present a theory of non-equilibrium superconducting proximity effect in an interacting quantum dot induced by a time-dependent tunnel coupling between dot and a superconducting lead. The proximity effect, that is established when the…

Mesoscale and Nanoscale Physics · Physics 2012-03-30 Ali G. Moghaddam , Michele Governale , Jürgen König

The adiabatic approximation is a natural approach for the description of phenomena induced by low frequency laser radiation because the ratio of the laser frequency to the characteristic frequency of an atom or a molecule is a small…

Atomic Physics · Physics 2010-12-27 Denys Bondar

The intermediate domain of strong-field ionization between the tunneling and the multiphoton regimes is investigated using the strong field approximation and the imaginary-time method. An intuitive model for the dynamics is developed which…

Quantum Physics · Physics 2015-06-22 M. Klaiber , K. Z. Hatsagortsyan , C. H. Keitel

Causality analysis is an important problem lying at the heart of science, and is of particular importance in data science and machine learning. An endeavor during the past 16 years viewing causality as real physical notion so as to…

Artificial Intelligence · Computer Science 2021-04-26 X. San Liang

Interaction of a strong laser pulse with matter transfers not only energy but also linear momentum of the photons. Recent experimental advances have made it possible to detect the small amount of linear momentum delivered to the…

Atomic Physics · Physics 2022-12-19 Xiaodan Mao , Hongcheng Ni , Xiaochun Gong , Joachim Burgdörfer , Jian Wu

The effect of the Pauli exclusion principle on double ionization of He atoms by strong, linearly polarized laser pulses is analyzed. We show that correlated electron escape, with electron momenta symmetric with respect to the field…

Atomic Physics · Physics 2009-11-13 Bruno Eckhardt , Jakub S. Prauzner-Bechcicki , Krzysztof Sacha , Jakub Zakrzewski

Using time-resolved transconductance spectroscopy, we study the tunneling dynamics between a two-dimensional electron gas (2DEG) and self-assembled quantum dots (QDs), embedded in a field-effect transistor structure. We find that the…

Mesoscale and Nanoscale Physics · Physics 2014-05-26 Andreas Beckel , Annika Kurzmann , Martin Geller , Arne Ludwig , Andreas D. Wieck , Jürgen König , Axel Lorke

We demonstrate the phenomenon of induced-charge capacitive deionization (ICCDI) that occurs around a porous and conducting particle immersed in an electrolyte, under the action of an external electric field. The external electric field…

Fluid Dynamics · Physics 2016-12-21 S. Rubin , M. E. Suss , P. M. Biesheuvel , M. Bercovici

We study electron transfer between two separated nuclei using local control theory. By conditioning the algorithm in a symmetric system formed by two protons, one can favored slow transfer processes, where tunneling is the main mechanism,…

Quantum Physics · Physics 2018-04-18 Patricia Vindel-Zandbergen , Christoph Meier , Ignacio R. Sola

Using a semi-classical model, we investigate frustrated double ionization (FDI) in $\mathrm{D_3^+}$, a two-electron triatomic molecule, when driven by an intense, linearly polarized, near-infrared (800 nm) laser field. We compute the…

Atomic Physics · Physics 2016-10-12 A. Chen , H. Price , A. Staudte , A. Emmanouilidou