Category: 4. Physics

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  • Improving PSNR and computational efficiency in orthogonal ghost imaging

    Improving PSNR and computational efficiency in orthogonal ghost imaging

    We initiate our evaluation process with numerical simulation to compare the image quality produced by the novel approach with the other existing methods. Here, the target object for simulation is an image of \(200\times 200\) pixels with a square…

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  • Strain tuning of optical and thermoelectric properties of monolayer BAs

    Strain tuning of optical and thermoelectric properties of monolayer BAs

    Optical properties

    Figure 1 illustrates the band structure of monolayer BAs along the high symmetric path Γ-M-K-Γ in the Brillouin zone. The results obtained from tight-binding model (shown in blue dashed lines) are compared with those from the…

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  • Critical behavior of Fredenhagen-Marcu string order parameters at topological phase transitions with emergent higher-form symmetries

    Critical behavior of Fredenhagen-Marcu string order parameters at topological phase transitions with emergent higher-form symmetries

    Toric code model and the FM string order parameter

    We consider the toric code model on a square lattice in a field:

    $${H}_{{\rm{TC}}}({h}_{x},{h}_{z})=-\sum _{v}{A}_{v}-\sum _{p}{B}_{p}-{h}_{x}\sum _{e}{X}_{e}-{h}_{z}\sum _{e}{Z}_{e},$$

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  • Tunability of acoustic band gaps using Thue Morse quasiperiodic lateral resonators

    Tunability of acoustic band gaps using Thue Morse quasiperiodic lateral resonators

  • Shin, Y. C. et al. Phononic band gap of a quarter-wave stack for enhanced piezoelectric energy harvesting. Int. J. Mech. Sci. 189, 106003. https://doi.org/10.1016/j.ijmecsci.2020.106003 (2021).

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  • Monitored long-range interacting systems: spin-wave theory for quantum trajectories

    Monitored long-range interacting systems: spin-wave theory for quantum trajectories

    Monitored long-range spin systems

    We consider a system with N spin-s degrees of freedom on a lattice whose sites are labeled by indices ij, that is subjected to continuous monitoring. For concreteness, we consider the case of weak monitoring…

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  • ‘Universe’s awkward handshake’ — simplifying information processing using photons a quantum breakthrough

    ‘Universe’s awkward handshake’ — simplifying information processing using photons a quantum breakthrough

    A team of researchers has developed a technique that makes high-dimensional quantum information encoded in light more practical and reliable.

    This advancement, published in Physical Review Letters, could pave the way for more secure data…

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