Results 51 to 60 of about 12,272 (307)

A fully-connected three-user quantum hyperentangled network

open access: yesQuantum Frontiers, 2023
Exploiting the fantastic features of quantum mechanics, a hyperentangled quantum network encoded in multiple degree of freedoms (DOF), e.g., polarization and orbital angular momentum DOFs, can encode more qubits per transmitted photon and offers a ...
Yiwen Huang   +5 more
doaj   +1 more source

Interception and deviation of near earth objects via solar collector strategy [PDF]

open access: yes, 2008
A solution to the asteroid deviation problem via a low-thrust strategy is proposed. This formulation makes use of the proximal motion equations and a semi-analytical solution of the Gauss planetary equations.
Vasile, M.   +5 more
core  

Three‐Dimensional Anomalous Hall Sensing Enabled By Spin–Orbit Torque Driven Domain Reconfiguration In Chiral Multilayers

open access: yesAdvanced Functional Materials, EarlyView.
A three‐dimensional magnetic field sensor is realized in chiral W/CoFeB/MgO multilayers, where spin–orbit torques reversibly reconfigure homochiral stripe domains. The symmetry of the torque enables offset‐free in‐plane sensing, while the reproducible domain reconfiguration extends the linear out‐of‐plane range. An anomalous Hall readout delivers large‐
Sabri Koraltan   +16 more
wiley   +1 more source

Discovering four space dimensions for the organization of electronic orbitals in a neon atom [PDF]

open access: yesEPJ Web of Conferences
A neon atom includes a helium shell and a neon shell. The helium sphere is isotropic and may be regarded as a one-dimensional point whereas the neon spherical layer contains four basic space dimensions: two symmetric periphery points, two complementary ...
Xu Kunming
doaj   +1 more source

Active debris removal mission from LEO with electric and hybrid propulsion [PDF]

open access: yes, 2011
Debris proliferation in space environment is an impending problem for preserving future missions. Although prevention measures (IADC guidelines, NASA Handbook for Limiting Orbit Debris) with the intent to regulate and limit the space trac are adopted,
Sansica, A.
core  

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

open access: yesAdvanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus   +8 more
wiley   +1 more source

Coverage‐Limiting Factors Affecting the Monitoring of Urban Emissions With the Orbiting Carbon Observatory Missions

open access: yesAGU Advances
A growing number of space‐based platforms, like the Orbiting Carbon Observatory (OCO‐2 and OCO‐3) missions, observe Earth's atmospheric carbon dioxide CO2 concentrations with high accuracy and precision. With the original goal of constraining natural CO2
Dustin Roten, Abhishek Chatterjee
doaj   +1 more source

Quantum mechanics/molecular mechanics studies on the intrinsic properties of typical ester oil molecules

open access: yesMaterials Research Express, 2022
The molecular structure of lubricating oil affects its lubrication properties, catalytic and hydrolytic stability, and anti-wear properties. Based on the idea of material genomics, researchers are trying to find the correlation between structural ...
Dan Jia   +7 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

open access: yesAdvanced 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   +11 more
wiley   +1 more source

Conservation of the spin and orbital angular momenta in electromagnetism

open access: yesNew Journal of Physics, 2014
We review and re-examine the description and separation of the spin and orbital angular momenta (AM) of an electromagnetic field in free space. While the spin and orbital AM of light are not separately meaningful physical quantities in orthodox quantum ...
Konstantin Y Bliokh   +2 more
doaj   +1 more source

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