conceptual graph of Weak Signal Extraction method in integrated communication and sensing network with Weak Measurment

Weak signal extraction in non-stationary channel with weak measurement

  • Qi Song
  • Hongjing Li
  • Guihua Zeng
Article

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    To celebrate our 5 year anniversary we present a collection of some of our favourite articles selected by editors and Editorial Board Members. Also, don't forget to cast your vote for our top feature image!

  • Kirk Flippo

    Kirk Flippo is the Extreme Hydro Team Leader (HED Hydro and Fluids) in the Applied and Fundamental Physics group at Los Alamos National Lab. His team researches plasma hydrodynamics and turbulence and he dabbles in short-pulse laser acceleration of electrons an ions, the production Giga-gauss magnetic fields, and x-ray, neutrons and antimatter.

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  • Large efforts have been placed on topological phases in non-Hermitian systems, where the appearance of exceptional points (EPs) and nontrivial Berry phase gather great interest. This study proposes an exhaustive classification framework for EPs, which connects eigenstate switching and Berry phase and reveals topological phase transitions accompanying EPs.

    • Jung-Wan Ryu
    • Jae-Ho Han
    • Hee Chul Park
    ArticleOpen Access
  • Public Transport Networks often suffer from disruption that needs to be reduced and mitigated. The authors study the correlation between topological and recoverability indicators for 42 transport networks in various cities, and find that denser and more efficient networks can better withstand disruptions, while larger networks with additional redundancy can rebound faster to normal performance levels during the recovery process.

    • Renzo Massobrio
    • Oded Cats
    ArticleOpen Access
  • Astrophysical jets are pivotal in the process of star formation, yet the mechanism responsible for their collimation remains a topic of intense debate, largely due to the constraints imposed by astronomical observational techniques and facilities. In this study, the authors demonstrate that a wide-angle plasma plume can undergo collimation and acceleration when subjected to toroidal magnetic fields, as evidenced by all-optical laboratory experiments.

    • Z. Lei
    • L. X. Li
    • B. Qiao
    ArticleOpen Access
  • Optical beams carrying orbital angular momentum (OAM) are promising candidates for free-space optical communication. The authors devise a hybrid optical-electronic convolutional neural network approach reaching a 4-bit OAM-coded signal demultiplexing accuracy of 72.84% under strong atmospheric turbulence conditions with 3.2 times faster training time than all electronic convolutional neural network.

    • Jiachi Ye
    • Haoyan Kang
    • Hamed Dalir
    ArticleOpen Access
  • The existence of electron gas at the interfaces of oxide-based heterostructures with broken spatial inversion symmetry gives rise to various interesting physical phenomena. Here, the authors report a new type quasi-three-dimensional electron gas state at the interface of ferrimagnetic semiconductor-strontium titanate heterostructures, which show high mobility, high valley degeneracy and possible spin polarization.

    • Zhao-Cai Wang
    • Lei Chen
    • Ren-Kui Zheng
    ArticleOpen Access
  • High Harmonic Generation in solids differs with respect to its atomic counterpart due to additional intraband harmonic emissions and to the presence of momentum scattering. The authors demonstrate that the additional intraband contribution depends on the momentum distribution of photodoped carriers when the driving pulse arrives to the sample.

    • Pawan Suthar
    • František Trojánek
    • Martin Kozák
    ArticleOpen Access
  • Noether’s theorem relates the symmetries of a statistical mechanical system to conservation laws and to constraints of thermal averages, but the extension to more general observables is still elusive. The authors demonstrate that any statistical observable is associated with a hierarchy of exact identities emerging from translational Noether invariance.

    • Silas Robitschko
    • Florian Sammüller
    • Sophie Hermann
    ArticleOpen Access
  • Species forming complex ecological or economic ecosystems are organized in hierarchies and the ranks of such species are determined by the adjacency matrix of their interaction network. We introduce a framework to calculate the ranks of species by finding the optimal permutation of rows and columns that makes the adjacency matrix maximally nested.

    • Manuel Sebastian Mariani
    • Dario Mazzilli
    • Flaviano Morone
    ArticleOpen Access
  • Evaporative cooling is the prevailing method for achieving ultracold temperatures in atomic systems, but the schemes to remove hotter atoms are limited by the spatial profile of the trapping potential. To overcome this limitation, the authors demonstrate a three-body recombination-based collisional cooling scheme for selective removal of hotter atoms.

    • Shuai Peng
    • Haotian Liu
    • Le Luo
    ArticleOpen Access

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