The group of Atomic, Molecular, and Optical Physics at the Institute of Physical Sciences, UNAM (ICF-UNAM) is cordially inviting you to join us for a mingle & coffee on-line.
The idea is to gather around a presentation of 30 min with enough time to make a rich discussion on the subject, strengthen collaborations, and make available the exchange of students.
We meet every two weeks in a relaxed environment to learn what the community is working on.
At the ICF-UNAM, we will meet (at the auditorium) with a cup of coffee and cookies. In case you join us via ZOOM, you do the same from your side.
Hybrid meeting
April 7th, at 9 am (Mexico City time, GMT-6, ECT-7).
This will allow colleagues from Europe to join us (5 PM CET) and via ZOOM at "Sala de Consejo" at the Physical Sciences Institute, UNAM
Online: The zoom link for the gathering is: 7745460260
"Antiproton collisions from a fully-correlated time-dependent approach"
Nicolas Sisourat, Université Sorbonne
Abstract: Collisions between antiprotons and atoms and molecules have recently attracted a renewed attention. From a fundamental point of view, these collisions are central to understand the physics of antimatter. For applications, processes occurring in a single antiproton collision are responsible for the slowing down and thus energy deposition of the ions into solids, which is relevant in material science and radiation therapy (see [3,4] and references therein for more on antiproton collision physics and its applications). In these context, we have recently developed an ab initio model to describe single and double ionization processes in antiproton collisions with atoms and molecules (see [1,2]). Our model is based on a fully correlated close-coupling approach and a Dyson orbital analysis. Furthermore, we introduce the concept of correlation integral in order to quantify and gain insights into the effects of electronic correlation on the ionization processes. Our model has been applied to various collision systems. During the talk, I will present our ab initio model, and report on what we have learned so far using it.
References
[1] C. Jia et al. 2023 Phys. Rev. A 107 012808
[2] C. Jia et al. 2024 Phys. Rev. A 110 012803
[3] T. Kirchner and H. Knudsen, 2011 J. Phys. B: At., Mol. Opt. Phys. 44 122001.
[4] T. Kirchner, in Ion-Atom Collisions: The Few-Body Problem in Dynamic Systems, edited by M. Schulz (De Gruyter, Berlin, Boston, 2019).
Come, join us with your cup of coffee ☕️ and share your passion for AMO Physics ⚛️.
If you would like to present your latest work and contribute with a talk, please, write an email to: trujillo@icf.unam.mx.
March 16th, Predrag Krstic, TheoretiK. Quantum computing: Reaching the skies or a decoherence slap in the face?
March 3rd, Olmo Gonzalez Magaña, ICF-UNAM. Photodetachment of negative ions drifting in the Townsend Avalanche: Experimental and numerical study in H2O
February 17th, Rejjak Laskar, Physikalisch-Technische Bundesanstalt, Germany. Probing Inhomogeneous Magnetic Fields Using Vector Light Beams in Atomic Media
February 3rd, Jorge Alfonso Lizarraga Brito, ICF-UNAM. Quantum Transport in few layer phosphorene
January 20th, Guillermo Hinojosa, ICF, UNAM. The Hidden Spectrometric Species at m/q = -16
January 6th, Israel Rebolledo, RISE Research Institutes of Sweden, Chip-scale optical frequency combs
December 9th, Angelina Nohemi Mendoza Tavera, UAM-I, Characterization of tunneling using entropic measures
November 25th, Eduardo Gómez, Institute of Physics, UASLP, Hybrid Microwave-Optical Interferometer
October 21th, Adrian Escobar, Physics Department, UAM-I, Quantum sextic potential: quasi-exact solvability, tunneling and entropic measures
October 7th, Christoph Morisset, ICF-UNAM, On fluorescence in astrophysical nebular regions
September 23rd:
Anjan Sadhukhan, NYCU Taiwan: Quantum Three-Body System: A Century-Old Problem Revisited
Carlos A. González, ICF-UNAM: Non-Markovian dynamics of giant emitters beyond the Weisskopf–Wigner approximation (25+5 min)
September 9th:
Remi Cabrera-Trujillo: Some physics news on AMO (for students and postdocs)
Adalberto Corrella, USON: The confined hydrogen molecule: Penetrable and impenetrable cavity cases
August 19th, 2025:
Santanu Mondal: Quantum information theory in confined systems
Antonio Juarez: 30 years Probing Molecules with Light: Methods and applications from Synchrotrons to Mid-Infrared Lasers