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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  • Light-matter interaction provides advanced solutions to engineer quantum phases of matter. The authors unveil the emergence of a topological gap in superconductors when circularly polarized light impinges on the material, thereby disclosing accessible strategies to implement novel quantum technologies.

    • Takahiro Anan
    • Takahiro Morimoto
    • Sota Kitamura
    ArticleOpen Access
  • Quantum control with coherent radiation fields typically operate at Rabi frequencies below the GHz, limiting the applicability of this scheme to systems with long coherence times. Via quantum path intereferometry, the authors overcome this limitation and control two-photon Rabi oscillations between excited states driven by femtosecond laser pulses.

    • Yudong Chen
    • Sainan Peng
    • Zhensheng Tao
    ArticleOpen Access
  • Geometric renormalization reveals hidden network symmetries by scaling them down while retaining key features. Extended to weighted networks, in which link intensities matter, here the authors present empirical evidence and theory to justify selecting links with maximum weights across increasingly longer length scales to reduce resolution, enabling self-similar replicas and study of size-dependent phenomena.

    • Muhua Zheng
    • Guillermo García-Pérez
    • M. Ángeles Serrano
    ArticleOpen Access
  • Nuclear fusion is one of the avenues pursued to generate carbon-free energy for an increasingly demanding world, but technical instrumental concerns remain, which will impact the realisation and performance of future fusion power plants. The authors employ a combined experimental, computational and theoretical approach, to elucidate the mechanism by which turbulence spreading sets the divertor (a component that extracts heat and ash produced by the fusion reaction) heat load width in fusion tokamak, and demonstrate common trends in the upstream edge turbulence intensity flux, the pressure perturbation skewness, and the turbulence mixing length, which together determine the downstream heat load width.

    • Zeyu Li
    • Xi Chen
    • George R. McKee
    ArticleOpen Access
  • While MHz repetition rates at modern X-ray free-electron laser (XFEL) facilities achieve remarkable capabilities for imaging, the high repetition rates may also lead to new stability problems. The authors experimentally demonstrate that thermoelastic displacements between successive pulses can be detrimental to the performance of cavity-based XFEL

    • Immo Bahns
    • Patrick Rauer
    • Harald Sinn
    ArticleOpen Access
  • Understanding the mechanisms that shape collective swimming of microorganisms is of great interest in biology, ecology and physics. Here the authors show that geometric constraints on the swimmers’ dynamics, such as near a solid surface, significantly alter emergent collective patterns, with relevance to many experimental and biological microswimmer realisations.

    • Dóra Bárdfalvy
    • Viktor Škultéty
    • Joakim Stenhammar
    ArticleOpen Access
  • Ferrimagnets present advantages over their anitferromagnetic and ferromagnetic counterparts for applications in ultrafast spintronics but the dynamics of the non-uniform spin textures are not as well understood. Here, the authors investigate the inhomogeneous oscillation dynamics in the ferrimagnetic system via a multi-spin model.

    • Baofang Cai
    • Xue Zhang
    • Gengchiau Liang
    ArticleOpen Access
  • The interplay between interactions and disorder can lead to unusual states of matter, which go beyond the notions of equilibrium statistical mechanics. Here the authors provide predictions for the dynamics of such phases, and their phase transitions, when coupled to an environment.

    • József Mák
    • M. J. Bhaseen
    • Arijeet Pal
    ArticleOpen Access
  • With the increase of the use of quantum information in everyday life, its dynamics requires deeper understanding. Here, the quantum fluctuation theorem, that accounts for a quantum system interacting with the environment, is established within the framework of quasi-probability, a powerful tool for studying quantum statistics.

    • Kun Zhang
    • Jin Wang
    ArticleOpen Access

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