Phys.org July 17, 2023 The rapid development of hardware devices with various realizations of qubits enables the execution of small scale but representative applications on quantum computers. The high-energy physics community plays a pivotal role in accessing the power of quantum computing, since the field is a driving source for challenging computational problems. This concerns, on the theoretical side, the exploration of models which are very hard or even impossible to address with classical techniques and, on the experimental side, the enormous data challenge of newly emerging experiments, such as the upgrade of the Large Hadron Collider. In this roadmap […]
Tag Archives: particle physics
Physicists grab individual atoms in ground-breaking experiment
Science Daily February 20, 2020 Researchers in New Zealand trapped and cooled three individual atoms to a temperature of about a millionth of a Kelvin using highly focused laser beams in a hyper-evacuated chamber. They combined the traps containing the atoms to produce controlled interactions which were measured. When the three atoms approach each other, two form a molecule, and all receive a kick from the energy released in the process. A microscope camera allows the process to be magnified and viewed. They were able to see the exact outcome of individual processes and observed a new process where two […]
Influential electrons? Physicists uncover a quantum relationship
Science Daily January 13, 2020 Topological insulators’ surface states can be manipulated by the interface environment to display various emergent phenomena. An international team of researchers (New York University, Lawrence Berkeley National Laboratory, University of Pennsylvania, Rutgers University, MIT) used spectromicroscopy, which can track how the motion of surface electrons differs from region to region within a material, to study bismuth selenide collecting data from nearly 1,000 smaller regions. They observed signatures of quantum hybridization in the relationships between moving electrons, such as a repulsion between electronic states that come close to one another in energy. Measurements from this method […]
China unveils blueprint for huge underground ‘Higgs factory’
Physics World September 6, 2018 Scientists in China have released details for a huge particle collider that will produce over a million Higgs bosons in a seven-year period. This report outlines the technical details of the accelerator. A second volume, featuring details of the CEPC detectors, is due to be released soon. The conceptual design report for the China Electron Positron Collider (CEPC) calls for a 100 km underground tunnel that would smash together electrons and positrons at energies of 240 GeV… read more.
Exotic state of matter: An atom full of atoms
Science Daily February 26, 2018 An international team of researchers (USA – Rice University, MIT, Switzerland, Brazil, Austria, Germany) reports spectroscopic observation of Rydberg polarons in an atomic Bose gas. Polarons are created by excitation of Rydberg atoms as impurities in a strontium Bose-Einstein condensate. As computer simulations show, this comparatively weak kind of interaction decreases the total energy of the system, and so a bond between the Rydberg atom and the other atoms inside the electronic orbit is created. This new, weakly bound state of matter is an exciting new possibility of investigating the physics of ultracold atoms… read […]