[institut] SCL seminar: Zoran Andjelkovic, Thursday, 7 July 2016 at 14:00

[Antun Balaz]

Dear colleagues,

You are cordially invited to the Scientific Computing Laboratory seminar, which will be held on Thursday, 7 July 2016 at 14:00 in the library reading room “Dr. Dragan Popović" of the Institute of Physics Belgrade. The talk entitled

Lasers meet stored highly charged ions - is QED as correct as we think it is?

will be given by Dr. Zoran Anđelković (GSI, Darmstadt, Germany). Abstract of the talk:

GSI Darmstadt, Germany, is one of the leading accelerator facilities for experiments with heavy, highly charged ions (HCI). Its routine production of ion bunches of up to 10^8 uranium U91+ or even bare U92+ opens many possibilities for nuclear and atomic physics. These ions can be directed to a stationary target for collision processes or stored in order to study interaction processes. We will give an overview of some of the GSI facilities such as the ion decelerator and trap HITRAP, the experimental storage ring ESR and the low-energy ring CRYRING (links below).

In this talk we will also present some of the recent laser spectroscopy experiments with stored HCI. Due to the long interaction time and availability of large ion bunches, even slow processes like spectroscopy of forbidden ground-state hyperfine transitions become possible. The extreme electric and magnetic fields that exist around the cores of HCI have a large influence on the few or even one single remaining electron in the shell. This configuration offers unique opportunities to test the bound-state quantum electrodynamics (QED) in the strong-field regime [1,2,3].

Internet links:
HITRAP decelerator and ion traps - https://goo.gl/ro43B3
GSI experimental storage ring - https://goo.gl/pc2xns
Low-energy storage ring CRYRING - https://goo.gl/79pe5Z

References:
[1] F. Herfurth, et. al., Phys. Scr. T166, 014063 (2015).
[2] M. Lochmann, et. al., Phys. Rev. A 90, 030501(R) (2014).
[3] Z. Andelkovic, et. al., Phys. Rev. A 87, 033423 (2013).


Best regards,
Antun Balaž

-----
Antun Balaž
E-mail: antun at ipb.ac.rs
Web: http://www.scl.rs/antun

Phone: +381 11 3713152
Fax: +381 11 3162190

Scientific Computing Laboratory
Institute of Physics Belgrade
Pregrevica 118, 11080 Belgrade, Serbia
-----