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The goal of the ASACUSA-CUSP collaboration at the Antiproton Decelerator of CERN is to measure the ground-state hyperfine splitting of antihydrogen using an atomic spectroscopy beamline. A milestone was achieved in 2012 through the…

Exploring new perspectives for green technologies is one of the challenges of the third millennium, in which the need for non-polluting and renewable powering has become primary. In this context, the use of hydrogen as a fuel is promising,…

介观与纳米尺度物理 · 物理学 2014-12-30 Vito Dario Camiola , Riccardo Farchioni , Tommaso Cavallucci , Antonio Rossi , Vittorio Pellegrini , Valentina Tozzini

The ALPHA collaboration recently published the article "Observation of the effects of gravity on the motion of antimatter" in issue 621 of Nature (2023), in which their conclusion states that "The probability that our data are consistent…

高能物理 - 唯象学 · 物理学 2025-04-07 Giovanni Maria Piacentino , Anthony Palladino

The application of directed energy to spacecraft mission design is explored using rapid transit to Mars as the design objective. An Earth-based laser array of unprecedented size (10~m diameter) and power (100~MW) is assumed to be enabled by…

Cosmic-ray antiprotons represent an important channel for dark matter indirect-detection studies. Current measurements of the antiproton flux at the top of the atmosphere and theoretical determinations of the secondary antiproton production…

高能物理 - 唯象学 · 物理学 2015-02-02 N. Fornengo , L. Maccione , A. Vittino

In 2002, the ATHENA collaboration reported the creation and detection of cold (~15 K) antihydrogen atoms [1]. The observation was based on the complete reconstruction of antihydrogen annihilations, simultaneous and spatially correlated…

仪器与探测器 · 物理学 2019-08-14 I. Johnson

Antiprotons are produced at CERN by colliding a 26 GeV/c proton beam with a fixed target made of a 3 mm diameter, 55 mm length iridium core. The inherent characteristics of antiproton production involve extremely high energy depositions…

Antihydrogen atoms are routinely formed at the Antiproton Decelerator at CERN in a wide range of Rydberg states. To perform precision measurements, experiments rely on ground state antimatter atoms which are currently obtained only after…

原子物理 · 物理学 2020-04-29 Tim Wolz , Chloé Malbrunot , Mélissa Vieille-Grosjean , Daniel Comparat

The increase in threats from global warming due to the consumption of fossil fuels requires our planet to adopt new strategies to harness the inexhaustible sources of energy. Hydrogen is an energy carrier which holds tremendous promise as a…

材料科学 · 物理学 2011-06-23 N. S. Venkataramanan , A. Suvitha , H. Mizuseki , Y. Kawazoe

Metal hydrogen exhibiting electron delocalization properties has been recognized as an important prospect for achieving controlled nuclear fusion, but the extreme pressure conditions required exceeding hundreds of GPa remain a daunting…

计算物理 · 物理学 2025-06-05 Jia Fan , Chenxi Wan , Rui Liu , Zhen Gong , Hongbo Jing , Baiqiang Liu , Siyang Liu , Zhigang Wang

Using argon as the working fluid in an internal combustion engine holds the potential of substantially enhancing thermal efficiency because of its high specific heat ratio. Burning hydrogen, not with air but with pure oxygen, in a…

流体动力学 · 物理学 2024-06-28 Max Peters , Noud Maes , Nico Dam , Jeroen van Oijen

Atoms made of a particle and an antiparticle are unstable, usually surviving less than a microsecond. Antihydrogen, made entirely of antiparticles, is believed to be stable, and it is this longevity that holds the promise of precision…

A conceptual design for beamed core antimatter propulsion is reported, where electrically charged annihilation products directly generate thrust after being deflected and collimated by a magnetic nozzle. Simulations were carried out using…

综合物理 · 物理学 2012-05-17 Ronan Keane , Wei-Ming Zhang

Attempts to use Electrohydrodynamic (EHD) flow for propulsion have been made since the last century [1]. Limited success has been registered particularly due to the inhomogeneous generation of the thrust, and also the very light weight and…

等离子体物理 · 物理学 2019-06-25 Adrian Ieta , Marius Chirita

Hydrogen-based fuel cells are promising solutions for the efficient and clean delivery of electricity. Since hydrogen is an energy carrier, a key step for the development of a reliable hydrogen-based technology requires solving the issue of…

介观与纳米尺度物理 · 物理学 2017-03-15 Valentina Tozzini , Vittorio Pellegrini

The progresses of the AEgIS collaboration on its way towards directly measuring the gravitational free-fall of neutral antimatter atoms are reviewed. The experiment recently developed the first pulsed cold antihydrogen source and entered in…

高能物理 - 实验 · 物理学 2022-08-16 Ruggero Caravita

The ATHENA experiment recently produced the first atoms of cold antihydrogen. This paper gives a brief review of how this was achieved.

Antiprotons, stored and cooled at low energies in a storage ring or at rest in traps, are highly desirable for the investigation of a large number of basic questions on fundamental interactions. This includes the static structure of…

加速器物理 · 物理学 2016-06-22 Javier Resta-Lopez , James R. Hunt , Carsten P. Welsch

Nanostructured solid boron-hydrogen compounds have been suggested as target and fuel for laser fusion, offering improved laser-plasma coupling, avoiding cryogenic fuel handling and fuel pre-compression and ultimately allowing a transit from…

等离子体物理 · 物理学 2024-01-15 Karl Lackner , Rainer Burhenn , Sina Fietz , Alexander von Müller