Scientists at the Federation of Physical Technology Research Institute (PTB) elite cluster missions use laser-cooled ions in the so-called "ion Coulomb crystals." They can show symmetry for the first time, can be produced in a controlled manner, and then can observe the occurrence of defects. The realization of these so-called "good terrain defects within the control system" opens up new possibilities when it comes to investigating quantum phase transitions and looking into the details of non-equilibrium complex system dynamics. Electrical Equipment Membrane Switch Electrical Equipment Membrane Switch,Lcd Touch Switch,Membrane Switch With Flexible Cable,Plastic Touch Switch ZDX (HK) LIMITED , https://www.zdxmembranekeyboards.com
International cooperation and colleagues Within the scope of the Los Alamos National Laboratory (USA), Ulm University (Germany) and the Hebrew University (Israel), PTB researchers are now successfully demonstrating the topology in the laboratory for the first time. The defect of the light of the atom in the experiment. The symmetry of the system cannot be communicated with each other due to errors in the topological defect space structure. For their activities, scientists use properties that are comparable to the symmetries of the Coulomb crystals of those early universe ions.
The experimental researchers faced the challenge with Tania Mehlstubler's work to be able to control a complex multi-particle system and induce deliberate changes in external conditions, resulting in symmetry breaking. This can be done by trapping in a so-called "RF ion trap" in an ultra-high vacuum and cooling to a few millikelvin with helium ions by means of laser light. The trapped, positively-charged particles repel each other within the well and, under such ultra-low temperature conditions, take the crystalline structure (Figure 2, AC). The ion traps developed for accurate metering applications hereby allow a great deal of control of ultra-cold particles and environmental parameters.
The work of the researchers was closely related to the so-called kibble-Zurek mechanism, established by Tom Kibre and Wojciech Zurek. Keeble's special topological deficiencies in the early universe: fragmented seconds After the Big Bang idea was based on this theory, symmetry breaking occurred, and the young universe had a new state of “decisionâ€.
For its work, researchers from the international group have now shown that the Zurek rough grinding mechanism can be transferred to a relatively simple laboratory system of laser-cooled ions of Coulomb crystals, and they have shown that the occurrence of topological defects depends on the speed change. Related experiments that were run simultaneously at the University of Johannes Gutenberg Mainz (JGU) led to similar results.
It has now been demonstrated that the new system will soon allow further experimentation, phase transitions in the classical system and the quantum universe, and the comparison of systematic systems in which non-linear physics (eg, solitons) in the field are to perform a good control. test. In doing so, physicists came to explain the causal relationship in nature.