Category: 4. Physics

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  • Capillary interactions drive the self-organization of bacterial colonies

    Capillary interactions drive the self-organization of bacterial colonies

  • Or, D., Smets, B. F., Wraith, J. M., Dechesne, A. & Friedman, S. P. Physical constraints affecting bacterial habitats and activity in unsaturated porous media—a review. Adv. Water Res. 30, 1505–1527 (2007).

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  • Ångström-resolution imaging of cell-surface glycans

    Ångström-resolution imaging of cell-surface glycans

  • Flynn, R. A. et al. Small RNAs are modified with N-glycans and displayed on the surface of living cells. Cell 184, 3109–3124.e3122 (2021).

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  • Predicting topological entanglement entropy in a Rydberg analogue simulator

    Predicting topological entanglement entropy in a Rydberg analogue simulator

    Hilbert space

    Considering a system of N spins 1/2 whose Hilbert space is spanned by {|↑〉, |↓〉}N, we map the dimer representation to this space using the correspondence \(\left\vert \uparrow \right\rangle =\left\vert…

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  • Experimental composable key distribution using discrete-modulated continuous variable quantum cryptography

    Experimental composable key distribution using discrete-modulated continuous variable quantum cryptography

    DM CVQKD protocols and composable secure key

    Protocol description

    Figure 1 shows a flowchart of the prepare-and-measure DM CVQKD protocol with QPSK alphabet. The protocol steps read as follows:

    Fig. 1

    Discrete modulated continuous variable quantum…

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  • Flat bands on a spherical surface from Landau levels to giant-quantum-number orbitals

    Flat bands on a spherical surface from Landau levels to giant-quantum-number orbitals

    Single particle flat bands

    The single-electron Hamiltonian on spherical surface with a magnetic monopole of strength Q at the center of the sphere is15

    $${\hat{H}}_{k}=\frac{{{\bf{L}}}^{2}-{\hslash }^{2}{Q}^{2}}{2{m}_{{\rm{e}}}{R}^{2}},$$

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  • Physicists unleashed the power of the atom — but to what end?

    Physicists unleashed the power of the atom — but to what end?

    Destroyer of Worlds: The Deep History of the Nuclear Age Frank Close Basic (2025)

    First, let’s clear up some potential confusion: in Destroyer of Worlds: The Deep History of the Nuclear Age, ‘deep’ in the subtitle means, not the minutiae of…

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  • Investigation of Na-ion battery applicability and supercapacitance properties of ZrCr2 alloyed with Na: a first-principles study

    Investigation of Na-ion battery applicability and supercapacitance properties of ZrCr2 alloyed with Na: a first-principles study

    In recent years, the need for efficient, cost-effective, and environmentally friendly energy storage systems has become increasingly urgent due to the rapid growth in portable electronics, electric vehicles, and renewable energy integration….

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  • Micron sized coils for the generation of high magnetic fields and field gradients

    Micron sized coils for the generation of high magnetic fields and field gradients

    Analytical approach

    In a first analytical approach, we aim at deriving guidelines for an optimum geometry of planar, single-turn microcoils with respect to the maximum field \({B}_{z}\) in the coil center. For a detailed derivation of the…

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