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We develop an approach to generate finite-range atomic interactions via optical Rydberg-state excitation and study the underlying excitation dynamics in theory and experiment. In contrast to previous work, the proposed scheme is based on…

Atomic Physics · Physics 2016-06-20 C. Gaul , B. J. DeSalvo , J. A. Aman , F. B. Dunning , T. C. Killian , T. Pohl

We consider coherent single-electron dynamics in the one-dimensional nanostructure under resonant electromagnetic pulse. The structure is composed of two deep quantum wells positioned at the edges of structure and separated by a sequence of…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 A. V. Tsukanov

We theoretically investigate an exciton-coupled electron transfer (XCET) process that is conversion of an exciton into a charge transfer state. This conversion happens in an exciton transfer (XT) process, and the electron moves away in an…

Quantum Physics · Physics 2017-11-03 Souichi Sakamoto , Yoshitaka Tanimura

The electron capture process plays an important role in the evolution of the core collapse of a massive star that precedes the supernova explosion. In this study, the electron capture on nuclei in stellar environment is described in the…

Nuclear Theory · Physics 2021-01-04 A. Ravlic , E. Yuksel , Y. F. Niu , G. Colo , E. Khan , N. Paar

Structural phase transitions are accompanied by a movement of one nucleus (or a few) in the crystallographic unit cell. If the nucleus movement is continuous, a second order phase transition without latent heat results, whereas an abrupt…

Statistical Mechanics · Physics 2024-09-04 Mario Graml , Kurt Hingerl

Nuclear quantum phenomena beyond the Born-Oppenheimer approximation are known to play an important role in a growing number of chemical and biological processes. While there exists no unique consensus on a rigorous and efficient…

Bose-Einstein condensate (BEC) is considered under conditions of Feshbach resonance in two-atom collisions due to a coupling of atomic pair and resonant molecular states. The association of condensate atoms can form a molecular BEC, and the…

Soft Condensed Matter · Physics 2007-05-23 Vladimir A. Yurovsky

Short-in-time, broad-in-energy attosecond or few-femtosecond pulses can excite coherent superpositions of several electronic states in molecules. This results in ultrafast charge oscillations known as charge migration. A key open question…

Chemical Physics · Physics 2025-09-12 Lina Fransén , Sandra Gomez , Morgane Vacher

The advent of powerful laser sources has made it possible to observe a relatively large cross section of the excited state of Hydrogen atom. This is due to the effect of joint collisions of a linearly polarized $N$-photon and high-energy…

Atomic Physics · Physics 2023-04-25 Behnam Nikoobakht

The contributions of short-range nucleon-nucleon (NN) correlations, various meson exchange current (MEC) terms and the influence of $\Delta$ isobar excitations (isobaric currents, IC) on exclusive two-nucleon knockout reactions induced by…

Nuclear Theory · Physics 2008-11-26 D. Knödler , H. Müther , P. Czerski

We provide physically intuitive mechanisms for the effect of noise on excitation energy transfer (EET) in networks. Using these mechanisms of dephasing-assisted transport (DAT) in a hybrid basis of both excitons and sites, we develop a…

Quantum Physics · Physics 2015-05-14 Alex W. Chin , Animesh Datta , Filippo Caruso , Susana F. Huelga , Martin B. Plenio

We measure the strength and the sign of hyperfine interaction of a heavy-hole with nuclear spins in single self-assembled quantum dots. Our experiments utilize the locking of a quantum dot resonance to an incident laser frequency to…

Mesoscale and Nanoscale Physics · Physics 2010-09-02 P. Fallahi , S. T. Yilmaz , A. Imamoglu

Determining the electron neutrino mass by electron capture in $^{163}$Ho relies on an accurate understanding of the differential electron capture nuclear decay rate as a function of the distribution of the total decay energy between the…

Nuclear Theory · Physics 2023-06-16 M. Brass , M. W. Haverkort

We study neutrinoless double-beta decay in an effective field theory (EFT) for heavy nuclei, which are treated as a spherical core coupled to additional neutrons and/or protons. Since the low-energy constants of the EFT cannot be fitted to…

Electronically excited atoms or molecules may deexcite by emission of a secondary electron through an Auger-Meitner decay. This deexcitation process is typically considered to be exponential in time. This is strictly speaking, however, only…

Pair transfer is a unique tool to study pairing correlations in nuclei. Neutron-proton pairing is investigated in the N=Z nuclei of the f-shell, through the reaction (p,3He) in inverse kinematics, that allows to populate at the same time…

Nuclear Experiment · Physics 2024-10-21 M. Assié , H. Jacob , Y. Blumenfeld , V. Girard-Alcindor

The shaping of nuclear spin polarization profiles and the induction of nuclear resonances are demonstrated within a parabolic quantum well using an externally applied gate voltage. Voltage control of the electron and hole wave functions…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. Poggio , G. M. Steeves , R. C. Myers , Y. Kato , A. C. Gossard , D. D. Awschalom

We study collision of two atoms with formation of Feshbach resonance at combined interaction with the external magnetic field and laser radiation. In cases of one- and two-photon resonances of laser radiation with two discrete vibrational…

Atomic Physics · Physics 2012-09-24 E. A. Gazazyan , A. D. Gazazyan , V. O. Chaltykyan

We study the ultrafast dynamics initiated by a coherent superposition of core-excited states of nitrous oxide molecule. Using high-level \textit{ab-initio} methods, we show that the decoherence caused by the electronic decay and the nuclear…

The transverse electron scattering response function of 3He is studied in the quasi-elastic peak region for momentum transfers between 500 and 700 MeV/c. A conventional description of the process leads to results at a substantial variation…

Nuclear Theory · Physics 2010-04-06 Victor D. Efros , Winfried Leidemann , Giuseppina Orlandini , Edward L. Tomusiak