Results 81 to 90 of about 15,035 (306)

Defining Effective Gain for Evaluation of Orbital Angular Momentum Links

, 2021
In this paper, a communication link based on circular phased array antennas generating orbital angular momentum (OAM) beams at radio frequency is investigated.
Aliakbarian, Hadi, Shamoushaki, Elaheh
core  

Orbital angular momentum microlaser [PDF]

, 2016
Structured light provides an additional degree of freedom for modern optics and practical applications.The effective generation of orbital angular momentum (OAM) lasing, especially at a micro- and nanoscale, could address the growing demand for ...
LONGHI, STEFANO
core   +1 more source

Impact of nonlinear electrodynamics on particle motion around a charged black hole with matter coupling

European Physical Journal C: Particles and Fields
We study the dynamics of particles near a charged back hole (BH) in the f(R, T) theory of gravity coupled with nonlinear electrodynamics and analyze how the parameters of the BH affect the motion of test particles.
Amna Saleem, Bushra Majeed, Zulfiqar Ali, Allah Ditta, Asalkhon Alimova, Phongpichit Channuie, Farruh Atamurotov   +6 more
doaj   +1 more source

Effects of angular momentum on kinetic energy release in fission [PDF]

Physics Letters B, 1970
Values for the most probable kinetic energy release in fission following compound-nucleus reactions between various targets and ions are reproduced. with a standard deviation of 1.5 MeV. by the expression EK0 (MeV) = 0.0042 Z02/A013 + 0.075 E0. where Z0.A0 and E0 are respectively the atomic number.
openaire   +2 more sources

Chirality and Organization of Adsorbates Modify Surface Phonon Dynamics

Advanced Functional Materials, EarlyView.
Chirality and molecular organization are shown to influence surface phonon dynamics in gold films. Time‐resolved Joule heating measurements reveal that ordered homochiral monolayers increase the Debye temperature and disordered layers reduce it, while ordered racemic controls have no effect.
Meital Ozeri, Eugenia Pyurbeeva, Shira Yochelis, Jonas Fransson, Ronnie Kosloff, Oded Millo, Yossi Paltiel   +6 more
wiley   +1 more source

Angular momentum evolution for galaxies in a Λ-CDM scenario [PDF]

, 2015
Context. Galaxy formation in the current cosmological paradigm is a verycomplex process in which inflows, outflows, interactions, and mergersare common events. These processes can redistribute the angular momentumcontent of baryons.
Tissera, Patricia Beatriz, Patricia B. Tissera, Tissera, Patricia B., Susana E. Pedrosa, Pedrosa, Susana Elizabeth, Pedrosa, Susana E.   +5 more
core   +1 more source

Effect of angular momentum conservation on hydrodynamic simulations of colloids

Physical Review E, 2015
In contrast to most real fluids, angular momentum is not a locally conserved quantity in some mesoscopic simulation methods. Here we quantify the importance of this conservation in the flow fields associated with different colloidal systems. The flow field is analytically calculated with and without angular momentum conservation for the multiparticle ...
Yang, Mingcheng, Theers, Mario, Hu, Jinglei, Gompper, Gerhard, Winkler, Roland G., Ripoll, Marisol   +5 more
openaire   +3 more sources

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +1 more source

Control not quantum gate on the states of photon orbital angular momentum [PDF]

EPJ Web of Conferences, 2019
The possibility of effectively creating quantum gates based on orbital angular momentum photon qubits using a Kerr nonlinear medium in a cavity is studied.
Andrianov Sergey, Kalachev Aleksey, Shindyaev Oleg, Shkalikov Andrey   +3 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source