Results 1 to 10 of about 1,869,289 (152)

The Phase Space Density Evolution of Radiation Belt Electrons under the Action of Solar Wind Dynamic Pressure

Magnetochemistry, 2023
Earth’s radiation belt and ring current are donut-shaped regions of energetic and relativistic particles, trapped by the geomagnetic field. The strengthened solar wind dynamic pressure (Pdyn) can alter the structure of the geomagnetic field, which can ...
Peng Hu, Haimeng Li, Zhihai Ouyang, Rongxin Tang, Liangjin Song, An Yuan, Bopu Feng, Yangyang Wang, Wenqian Zou   +8 more
doaj   +1 more source

An event of extreme relativistic and ultra-relativistic electron enhancements following the arrival of consecutive corotating interaction regions: Coordinated observations by Van Allen Probes, Arase, THEMIS and Galileo satellites

Frontiers in Astronomy and Space Sciences, 2022
During July to October of 2019, a sequence of isolated Corotating Interaction Regions (CIRs) impacted the magnetosphere, for four consecutive solar rotations, without any interposed Interplanetary Coronal Mass Ejections.
Afroditi Nasi, Christos Katsavrias, Ioannis A. Daglis, Ioannis A. Daglis, Ingmar Sandberg, Sigiava Aminalragia-Giamini, Sigiava Aminalragia-Giamini, Wen Li, Yoshizumi Miyoshi, Hugh Evans, Takefumi Mitani, Ayako Matsuoka, Iku Shinohara, Takeshi Takashima, Tomoaki Hori, Georgios Balasis   +15 more
doaj   +1 more source

High phase-space density gas of NaCs Feshbach molecules

Physical Review Research, 2022
We report on the creation of ultracold gases of bosonic Feshbach molecules of NaCs. The molecules are associated from overlapping gases of Na and Cs using a Feshbach resonance at 864.12(5)G.
Aden Z. Lam, Niccolò Bigagli, Claire Warner, Weijun Yuan, Siwei Zhang, Eberhard Tiemann, Ian Stevenson, Sebastian Will   +7 more
doaj   +1 more source

Features of energetic particle radial profiles inferred from geosynchronous responses to solar wind dynamic pressure enhancements [PDF]

Annales Geophysicae, 2009
Determination of the radial profile of phase space density of relativistic electrons at constant adiabatic invariants is crucial for identifying the source for them within the outer radiation belt.
Y. Shi, E. Zesta, L. R. Lyons
doaj   +1 more source

Entanglement entropy and phase space density: lowest Landau levels and 1/2 BPS states

Journal of High Energy Physics, 2022
We consider the entanglement entropy of an arbitrary subregion in a system of N non-relativistic fermions in 2+1 dimensions in Lowest Landau Level (LLL) states.
Sumit R. Das, Shaun Hampton, Sinong Liu
doaj   +1 more source

Quantum Knowledge in Phase Space

Entropy, 2023
Quantum physics through the lens of Bayesian statistics considers probability to be a degree of belief and subjective. A Bayesian derivation of the probability density function in phase space is presented.
Davi Geiger
doaj   +1 more source

Universal Pion Freeze-out Phase-Space Density [PDF]

, 1999
Results on the pion freeze-out phase-space density in sulphur-nucleus, Pb-Pb and pion-proton collisions at CERN-SPS are presented. All heavy-ion reactions are consistent with the thermal Bose-Einstein distrtibution f=1/(exp(E/T)-1) at T~120 MeV, modified
Agababyan, Alber, Alber, Appelshäuser, Appelshäuser, B. Tomášik, Barrette, Bearden, Becattini, Becattini, Beker, Bertsch, Bertsch, Chapman, Chapman, D. Ferenc, Ferenc, J.G. Cramer, Nix, Schlei, Schnedermann, Stachel, Tomášik, U. Heinz, U.A. Wiedemann, Wiedemann, Wiedemann   +26 more
core   +3 more sources

Bell Inequalities in Four Dimensional Phase Space and the Three Marginal Theorem [PDF]

, 2002
We address the classical and quantum marginal problems, namely the question of simultaneous realizability through a common probability density in phase space of a given set of compatible probability distributions.
Auberson, G., Mahoux, , Roy, , Singh, Virendra   +3 more
core   +3 more sources

A Statistical Survey of Radiation Belt Dropouts Observed by Van Allen Probes

Geophysical Research Letters, 2018
A statistical analysis on the radiation belt dropouts is performed based on 4 years of electron phase space density data from the Van Allen Probes.
Zheng Xiang, Weichao Tu, Binbin Ni, M. G. Henderson, Xing Cao   +4 more
doaj   +1 more source

Analysis of a hadron beam in five-dimensional phase space

Physical Review Accelerators and Beams, 2023
We conduct a detailed measurement and analysis of a hadron beam in five-dimensional phase space at the Spallation Neutron Source Beam Test Facility. The measurement’s resolution and dynamic range are sufficient to image sharp, high-dimensional features ...
A. Hoover, K. Ruisard, A. Aleksandrov, A. Zhukov, S. Cousineau   +4 more
doaj   +1 more source