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We identify and explore a high orbital angular momentum (OAM) harmonics generation and amplification mechanism that manipulates the OAM independently of any other laser property, by preserving the initial laser wavelength, through…

等离子体物理 · 物理学 2017-01-04 J. Vieira , R. M. G. M. Trines , E. P. Alves , R. A. Fonseca , J. T. Mendonça , R. Bingham , P. Norreys , L. O. Silva

There is recurrent interest in the orbital angular momentum (OAM) conveyed by optical vortices, which are structured beams with a helically twisted wavefront. Particular significance is attached to the issue of how, in its interactions with…

光学 · 物理学 2019-02-27 Kayn A. Forbes , David L. Andrews

Scattering experiments are at the heart of high-energy physics (HEP), breaking matter down to its fundamental constituents, probing its formation, and providing deep insight into the inner workings of nature. In the current huge drive to…

Colliding high energy hadrons either produce new particles or scatter elastically with their quantum numbers conserved and no other particles produced. We consider the latter case here. Although inelastic processes dominate at high…

高能物理 - 唯象学 · 物理学 2015-06-05 I. M. Dremin

Scattering angle differential cross sections for the He+ + He single electron capture process are studied using plane wave Born approximation models for projectile energies between 30 keV and 1.89 MeV. Within this simplistic framework, we…

原子物理 · 物理学 2019-02-01 A. L. Harris , A. Plumadore

A recent proposal suggested that neutron orbital angular momentum (OAM) states could be detected via spin-polarized absorption in polarized 3He, with predicted cross-section variations linked to the neutron's OAM. We experimentally tested…

We have studied how 2- and 3- dimensional systems made up of particles interacting with finite range, repulsive potentials jam (i.e., develop a yield stress in a disordered state) at zero temperature and applied stress. For each…

软凝聚态物质 · 物理学 2007-05-23 C. S. O'Hern , L. E. Silbert , A. J. Liu , S. R. Nagel

Spatiotemporal Optical Vortices (STOVs) are structured electromagnetic fields propagating in free space with phase singularities in the space-time domain. Depending on the tilt of the helical phase front, STOVs can carry both longitudinal…

光学 · 物理学 2024-03-26 Pronoy Das , Sathwik Bharadwaj , Zubin Jacob

In recent years, an interest in the study of quantum information has grown within the high-energy particle physics community. The possibility to establish the presence of entanglement at particle colliders, such as the Large Hadron Collider…

高能物理 - 唯象学 · 物理学 2022-11-09 Luca Mantani

Many features of heavy-ion collisions are well described by hybrid approaches, where the droplet of strongly coupled quark gluon plasma (QGP) is modeled by hydrodynamics and the subsequent dilute stage is performed with a hadronic transport…

核理论 · 物理学 2026-05-14 Lucas Constantin , Niklas Götz , Carl B. Rosenkvist , Hannah Elfner

We show that the cross sections for a broad range of resonant {\it inelastic} processes accompanied by excitation exchange (such as spin-exchange, F\"orster resonant, or angular momentum exchange) exhibit an unconventional near-threshold…

原子物理 · 物理学 2022-01-26 Rebekah Hermsmeier , Adrien Devolder , Paul Brumer , Timur V. Tscherbul

Electron vortex beams hold great promise for development in transmission electron microscopy, but have yet to be widely adopted. This is partly due to the complex set of interactions that occur between a beam carrying orbital angular…

光学 · 物理学 2016-06-29 L. Clark , G. Guzzinati , A. Béché , A. Lubk , J. Verbeeck

In this work, the production of photons through binary scattering processes is investigated for equilibrated hadronic systems. More precisely, a non-equilibrium hadronic transport approach to describe relativistic heavy-ion collisions is…

The optical properties of a fixed atom are well-known and investigated. For example, the extraordinarily large cross section of a single atom as seen by a resonant photon is essential for quantum optical applications. Mechanical effects…

量子物理 · 物理学 2024-04-16 Teresa D. Karanikolaou , Robert J. Bettles , Darrick E. Chang

Giant resonances (GRs) provide crucial insights into nuclear physics and astrophysics. Exciting GRs using particles like electrons is effective, yet the angular momentum (AM) transfer of electrons, including both intrinsic spin and orbital…

Twisted light with orbital angular momentum (OAM) has been extensively studied for applications in quantum and classical communications, microscopy, and optical micromanipulation. Ejecting the naturally high angular momentum whispering…

Photons with a helical phase front (twisted photons) can carry a discrete, in principle, unbounded amount of orbital angular momentum (OAM). Twisted single-photons have been demonstrated as a high-dimensional quantum system with information…

光学 · 物理学 2020-03-26 Bo Chen , Yuming Wei , Tianming Zhao , Shunfa Liu , Beimeng Yao , Ying Yu , Jin Liu , Xue-hua Wang

Recent advancements in wavefront shaping techniques have facilitated the study of complex structured light's propagation with orbital angular momentum (OAM) within various media. The introduction of a spiral phase modulation to the…

光学 · 物理学 2024-10-02 Igor Meglinski , Ivan Lopushenko , Anton Sdobnov , Alexander Bykov

We consider the fundamental problem of high temperature phase transitions in the system of high density two-level atoms off-resonantly interacting with a pump field in the presence of optical collisions (OCs) and placed in the cavity. OCs…

量子物理 · 物理学 2015-06-17 I. Yu. Chestnov , A. P. Alodjants , S. M. Arakelian

Orbital angular momentum (OAM) light beams for high-order harmonic generation (HHG) provide an additional degree of freedom to study the light-matter interaction at ultrafast timescales. A more sophisticated configuration is a perfect…

光学 · 物理学 2024-10-01 Bikash Kumar Das , C. Granados , M. Krüger , Marcelo F. Ciappina