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We report on the achieving of Bose-Einstein condensation of a dilute atomic gas based on trapping atoms in tightly confining CO_2-laser dipole potentials. Quantum degeneracy of rubidium atoms is reached by direct evaporative cooling in both…

Soft Condensed Matter · Physics 2007-05-23 Giovanni Cennini , Gunnar Ritt , Carsten Geckeler , Martin Weitz

The PAX project at GSI Darmstadt plans to polarize an antiproton beam by repeated interaction with a hydrogen target in a storage ring. Many of the beam particles are required to remain within the ring after interaction with the target, so…

High Energy Physics - Phenomenology · Physics 2014-11-18 D. S. O'Brien , N. H. Buttimore

Experiments with interacting high-velocity flows of laser plasma can help answer the fundamental questions in plasma physics and improve the understanding of the mechanisms behind astrophysical phenomena, such as formation of collisionless…

Using the local equilibrium density operator, we develop a geometry-informed linear response theory that takes into account the parameterization of the freezeout hypersurface before the gradient expansion is carried out. Assuming local…

High Energy Physics - Phenomenology · Physics 2025-09-12 Andrea Palermo , Masoud Shokri

Based on the chiral kinetic equations of motion, spin polarizations of various quarks, due to the magnetic field induced by spectator protons as well as the quark-antiquark vector interaction, are studied within a partonic transport…

Nuclear Theory · Physics 2019-04-19 Zhang-Zhu Han , Jun Xu

This paper proposes a novel numerical integrator for modeling multispecies Coulomb collisions in kinetic plasmas. The proposed scheme provides an energy-, momentum-, and positivity-preserving particle discretization of the nonlinear Landau…

Plasma Physics · Physics 2022-12-28 Filippo Zonta , Joseph V. Pusztay , Eero Hirvijoki

The significant splitting of $\Lambda$ and $\bar{\Lambda}$ polarization measured in STAR's Au+Au 7.7GeV collisions seems to be huge and unable to be described satisfactorily by any single mechanism, thus we revisit and combine there…

Nuclear Theory · Physics 2023-05-31 Simin Wu , Yilong Xie

We use accurate quantum mechanical calculations to analyze the effects of parallel electric and magnetic fields on collision dynamics of OH(2Pi) molecules. It is demonstrated that spin relaxation in 3He-OH collisions at temperatures below…

Atomic Physics · Physics 2012-02-06 Timur V. Tscherbul , Gerrit C. Groenenboom , Roman V. Krems , Alex Dalgarno

Spin-polarised atomic ensembles probed by light based on the Faraday interaction are a versatile platform for numerous applications in quantum metrology and quantum information processing. Here we consider an ensemble of Alkali atoms that…

Quantum Physics · Physics 2022-05-11 Alexander Roth , Klemens Hammerer , Kirill S. Tikhonov

In this paper, the ionization and recombination coefficients of dense semiclassical hydrogen plasma on the basis of the effective interaction potential have been investigated. For this goal the Bohr$-$Lindhard method and method phase…

I propose a method to remove the axial motional excitation from an ion qubit within a few oscillation periods of a harmonic trap. The principle is to prepare another coolant ion in its motional ground state, and then apply a phonon beam…

Quantum Physics · Physics 2014-12-10 Hoi-Kwan Lau

In non-central high energy heavy ion collisions, the colliding system possesses a huge orbital angular momentum along the normal direction of the reaction plane. Due to the spin orbit interaction in the system, such a huge orbital angular…

Nuclear Theory · Physics 2023-01-18 Zuo-tang Liang

There exist two well established methods to trap charged particles: the Penning trap and the Paul trap. The subject of this article is to present a third mechanism for trapping charged particles - trapping by beams of electromagnetic…

Classical Physics · Physics 2012-11-13 Iwo Bialynicki-Birula , Zofia Bialynicki-Birula , Nadbor Drozd

We report the realization of correlated, density-dependent tunneling for fermionic 40K atoms trapped in an optical lattice. By appropriately tuning the frequency difference between a pair of Raman beams applied to a spin-polarized gas,…

Quantum Gases · Physics 2018-08-29 Wenchao Xu , William Morong , Hoi-Yun Hui , Vito W. Scarola , Brian DeMarco

We propose a platform for observing and controlling the interactions between atomic ions and a quantum gas of polar molecules in the ultracold regime. This approach is based on the combination of several recently developed methods in two…

Atomic Physics · Physics 2025-06-26 Leon Karpa , Olivier Dulieu

There has been a long-standing quest to observe chemical reactions at low temperatures where reaction rates and pathways are governed by quantum mechanical effects. So far this field of Quantum Chemistry has been dominated by theory. The…

Chemical Physics · Physics 2012-10-15 Alon B. Henson , Sasha Gersten , Yuval Shagam , Julia Narevicius , Edvardas Narevicius

Trapping of atoms and molecules in electrostatic, magnetic and optical traps has enabled studying atomic and molecular interactions on a timescale of many seconds, allowing observations of ultra-cold collisions and reactions. Here we report…

Atomic Physics · Physics 2020-12-02 Michael Karpov , Martin Pitzer , Yair Segev , Julia Narevicius , Edvardas Narevicius

We propose a parameter-free scheme of calculation of the orbital polarization (OP) in metals, which starts with the strong-coupling limit for the screened Coulomb interactions in the random-phase approximation (RPA). For itinerant magnets,…

Strongly Correlated Electrons · Physics 2007-05-23 I. V. Solovyev

The Hamiltonian dynamics of a single particle in a rotating plasma column, interacting with an magnetic multipole is perturbatively solved for up to second order, using the method of Lie transformations. First, the exact Hamiltonian is…

Plasma Physics · Physics 2023-08-24 T. Rubin , J. M. Rax , N. J. Fisch

We report a study of suppressed spin dephasing for quasi-one-dimensional electron ensembles in wires etched into a GaAs/AlGaAs heterojunction system. Time-resolved Kerr-rotation measurements show a suppression that is most pronounced for…

Mesoscale and Nanoscale Physics · Physics 2010-04-16 S. Z. Denega , T. Last , J. Liu , A. Slachter , P. J. Rizo , P. H. M. van Loosdrecht , B. J. van Wees , D. Reuter , A. D. Wieck , C. H. van der Wal