Category: 4. Physics

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  • Enhanced low-frequency wideband vibration mitigation of an acoustic black hole beam utilizing coupled distributed dynamic absorbers

    Enhanced low-frequency wideband vibration mitigation of an acoustic black hole beam utilizing coupled distributed dynamic absorbers

    Experimental investigation of vibration attenuation effect

    Vibration experiments have been conducted on three distinct models: an ABH beam, an ABH beam coupled with a single DVA (denoted as ABH + DVA), and an ABH beam coupled with a damping…

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  • Which-path information of path-polarization hybrid state in polarization-based nested Mach-Zehnder interferometer

    Which-path information of path-polarization hybrid state in polarization-based nested Mach-Zehnder interferometer

    We present the TSVF analysis considering the polarization and path states. In the TSVF, the photon measured by the detector can be described as a standard forward-evolving quantum state (\(\left| \Psi \right\rangle\)) generated from a light…

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  • Achieving high polarization of photons emitted by unpolarized electrons in ultrastrong laser fields

    Achieving high polarization of photons emitted by unpolarized electrons in ultrastrong laser fields

    Modeling the polarization dynamics of emitted photons in ultrastrong electromagnetic fields

    The polarization of a photon emitted by an electron is determined at the moment of its generation by the spin- and polarization-resolved radiation…

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  • High-temperature mid-wavelength infrared avalanche photodiode with modified fully-depleted absorption and multiplication region

    High-temperature mid-wavelength infrared avalanche photodiode with modified fully-depleted absorption and multiplication region

    Device and design

    The specific structural details of the heterostructure MFDAM APD is illustrated in Fig. 1a. Processes of the material growth and device fabrication are provided in the Sec. “Methods”. In contrast to the SACM structure…

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  • Harnessing quantum entanglement and heat current of a non-equilibrium spin system at high temperatures

    Harnessing quantum entanglement and heat current of a non-equilibrium spin system at high temperatures

    We now present numerical results for the dynamics of entanglement and heat current between the qubits for various initial two-qubit states in both the symmetric qubit-bath \((\varepsilon =0)\) and asymmetric qubit-bath \((\varepsilon =1)\)

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  • Dephasing and error dynamics affecting a singlet-triplet qubit during coherent spin shuttling

    Dephasing and error dynamics affecting a singlet-triplet qubit during coherent spin shuttling

    Coherent spin transfer

    Two established approaches for spin shuttling are conveyor mode25,35,36 and bucket brigade mode3,17,18,26,37,38. Shuttling in this work is accomplished by a barrier pulse-assisted bucket brigade mode, in which we leverage…

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  • Theory of potential impurity scattering in pressurized superconducting La3Ni2O7

    Theory of potential impurity scattering in pressurized superconducting La3Ni2O7

    Disordered bilayer model

    We consider a bilayer Hamiltonian with point-like non-magnetic impurities \({{{\mathcal{H}}}}={{{{\mathcal{H}}}}}_{0}+{{{{\mathcal{H}}}}}_{{{{\rm{int}}}}}+{{{{\mathcal{H}}}}}_{{{{\rm{dis}}}}}\), where the interaction term…

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