Relativistic ab initio study on the spectroscopic and radiative properties of the lowest states and modeling of the optical cycles for the LiFr molecule

• URL: http://arxiv.org/abs/2312.16711v1
• Date: Wed, 27 Dec 2023 20:34:14 GMT
• Title: Relativistic ab initio study on the spectroscopic and radiative properties of the lowest states and modeling of the optical cycles for the LiFr molecule
• Authors: Maksim Shundalau and Patrizia Lamberti
• Abstract summary: The LiFr diatomic represents a promising candidate for indirect laser cooling. The data obtained would be useful for laser cooling and spectral experiments with LiFr molecules.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: The LiFr diatomic represents a promising candidate for indirect laser cooling that has not yet been investigated not theoretically or experimentally. The potential energy curves of the ground and low_lying excited states of the LiFr heteronuclear alkali metal dimer are calculated using the Fock_space relativistic coupled cluster theory for the first time. A number of properties such as the electronic term energies, equilibrium internuclear distances, transition and permanent dipole moments, sequences of vibrational energies, harmonic vibrational frequencies, Franck_Condon factors, and radiative lifetimes (including bound and free transitions) are predicted. The probabilities of the two_step schemes (optical cycles) for the transfer process of the LiFr molecules from high excited vibrational states to the ground vibronic state are also predicted. The data obtained would be useful for laser cooling and spectral experiments with LiFr molecules.

Related papers

• Determining the molecular Huang-Rhys factor via STM induced luminescence [11.925958787012464]
  tunneling microscopy induced luminescence (STML) can be used to probe the optical and electronic properties of molecules. We model the molecule as a two-level system with the vibrational degrees of freedom. We find that the differential conductance, varying with the bias voltage, exhibits distinct step structure with various vibronic coupling strength.
  arXiv  Detail & Related papers  (2023-11-08T09:17:50Z)
• Precision Spectroscopy of Fast, Hot Exotic Isotopes Using Machine Learning Assisted Event-by-Event Doppler Correction [0.6999740786886537]
  We propose an experimental scheme for performing sensitive, high-precision laser spectroscopy studies on fast exotic isotopes. The ability to perform in-flight spectroscopy, directly on highly energetic beams, offers unique opportunities to study short-lived isotopes with lifetimes in the millisecond range.
  arXiv  Detail & Related papers  (2023-04-25T19:53:59Z)
• The chromium dimer: closing a chapter of quantum chemistry [0.0]
  The complex electronic structure and unusual potential energy curve of the chromium dimer have fascinated scientists for decades. We present a new ab initio simulation of the potential energy curve and vibrational spectrum that significantly improves on all earlier estimates.
  arXiv  Detail & Related papers  (2022-06-21T21:28:47Z)
• Dynamics of Transmon Ionization [94.70553167084388]
  We numerically explore the dynamics of a driven transmon-resonator system under strong and nearly resonant measurement drives. We find clear signatures of transmon ionization where the qubit escapes out of its cosine potential.
  arXiv  Detail & Related papers  (2022-03-21T18:00:15Z)
• Studying ultrafast Rabi dynamics with a short-wavelength seeded free-electron laser [0.47783778796967247]
  We show that femtosecond extreme-ultraviolet pulses from a seeded free-electron laser can drive Rabi oscillations between the ground state and an excited state in helium atoms. The measured photoemission signal revealed an Autler-Townes doublet as well as an avoided crossing. Our results offer opportunities to carry out ultrafast manipulation of coherent processes at short wavelengths using free-electron lasers.
  arXiv  Detail & Related papers  (2022-01-26T14:08:04Z)
• Relativistic aspects of orbital and magnetic anisotropies in the chemical bonding and structure of lanthanide molecules [60.17174832243075]
  We study the electronic and ro-vibrational states of heavy homonuclear lanthanide Er2 and Tm2 molecules by applying state-of-the-art relativistic methods. We were able to obtain reliable spin-orbit and correlation-induced splittings between the 91 Er2 and 36 Tm2 electronic potentials dissociating to two ground-state atoms.
  arXiv  Detail & Related papers  (2021-07-06T15:34:00Z)
• Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
  We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators. We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure. The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
  arXiv  Detail & Related papers  (2021-05-27T18:00:02Z)
• Time-resolved Interparticle Coulombic Decay spectra including nuclear degrees of freedom [49.1574468325115]
  We explore the ultra-rapid electronic motion spanning attoseconds to femtoseconds, demonstrating that it is equally integral and relevant to the discipline. The advent of ultrashort attosecond pulse technology has revolutionized our ability to directly observe electronic rearrangements in atoms and molecules.
  arXiv  Detail & Related papers  (2021-02-10T16:51:48Z)
• Collective spontaneous emission of two entangled atoms near an oscillating mirror [50.591267188664666]
  We consider the cooperative spontaneous emission of a system of two identical atoms, interacting with the electromagnetic field in the vacuum state. Using time-dependent theory, we investigate the spectrum of the radiation emitted by the two-atom system. We show that it is modulated in time, and that the presence of the oscillating mirror can enhance or inhibit the decay rate.
  arXiv  Detail & Related papers  (2020-10-07T06:48:20Z)
• Resonant high-energy bremsstrahlung of ultrarelativistic electrons in the field of a nucleus and a pulsed light wave [68.8204255655161]
  Research investigates the resonant high-energy spontaneous bremsstrahlung of ultrarelativistic electrons with considerable energies in the field of a nucleus and a quasimonochromatic laser wave.
  arXiv  Detail & Related papers  (2020-04-05T16:27:11Z)
• Phonon-induced optical dephasing in single organic molecules [0.0]
  We present a joint experiment--theory analysis of the temperature-dependent emission spectra, zero-phonon linewidth, and second-order correlation function of light emitted from a single molecule. Our results constitute an essential characterisation of the photon coherence of these promising molecules, paving the way towards their use in future quantum information applications.
  arXiv  Detail & Related papers  (2020-01-13T16:01:01Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.