Dynamic nuclear Stark shift in superintense laser fields

Abstract

The direct interaction of super-intense laser fields in the optical frequency domain with nuclei is studied. As main observable, we consider the nuclear AC-Stark shift of low-lying nuclear states due to the off-resonant excitation by the laser field. We include the case of accelerated nuclei to be able to control the frequency and the intensity of the laser field in the nuclear rest frame over a wide range of parameters. We find that AC-Stark shifts of the same order as in typical quantum optical systems relative to the respective transition frequencies are feasible with state-of-the-art or near-future laser field intensities and moderate acceleration of the target nuclei. Along with this shift, we find laser-induced modifications to the proton root-mean-square radii and to the proton density distribution. We thus expect direct laser-nucleus interaction to become of relevance together with other super-intense light-matter interaction processes such as pair creation.

Extremely high-intensity laser interactions with fundamental quantum systems

“…In such ultrastrong fields, low-lying nuclear levels get modified by the dynamic (AC-) Stark shift (Bürvenich et al, 2006b). These AC-Stark shifts are of the same order as in typical atomic quantum optical systems relative to the respective transition frequencies.…”

“…These AC-Stark shifts are of the same order as in typical atomic quantum optical systems relative to the respective transition frequencies. At even higher, supercritical intensities (I 0 > 10 29 W/cm 2 ) the laser field induces modifications to the proton rootmean-square radius and to the proton density distribution (Bürvenich et al, 2006b). …”

ON SENSING NUCLEI OF THE LANTHANIDE ISOTOPES BY MEANS OF LASER SPECTROSCOPY OF HYPERFINE STRUCTURE: 165Ho, 169Tm

“…Though we have no guaranty that these wave-functions yield a close approximation to nature, the success of the RMF approach supports our choice (c.f. [ [31][32][33][34][35]. These wave functions do not suffer from known deficiencies of other approaches, e.g., the wrong asymptotics of wave functions obtained in a harmonic oscillator potential [31].…”

“…As a self-consistent mean-field model (for a comprehensive review see Ref. [6][7][8][9][31][32][33][34][35]), its ansatz is a Lagrangian or Hamiltonian that incorporates the effective, in-medium nucleon-nucleon interaction. Recently [6,31], self-consistent models have undergone a reinterpretation which explains their quantitative success in view of the facts that nucleons are composite objects and that the mesons employed in RMF have only a loose correspondence to the physical meson spectrum.…”

Probing few-excitation eigenstates of interacting atoms on a lattice by observing their collective light emission in the far field

“…Nu- * paolo.longo@mpi-hd.mpg.de clear transitions driven, e.g., by synchrotron light [25], are a particularly promising implementation, fueled by a number of recent theoretical [26][27][28][29][30][31][32] and experimental [33][34][35][36][37][38][39][40][41][42] works. Typically, the nuclei are embedded in a solid state target, which may exhibit a crystalline structure.…”