Numerical analysis of a two-qubit XYZ Heisenberg quantum Otto engine shows that reduced longitudinal coupling and optimized anisotropy improve net work and efficiency, with concurrence changes between isomagnetic strokes correlating to efficiency gains.
New mechanism of anisotropic superexchange interaction
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DFT and atomistic spin dynamics calculations predict that 1T-CrSI, 1H-CrSeI, and 1H-CrSI Janus monolayers are ferromagnets with perpendicular magnetic anisotropy and Curie temperatures of 210-410 K.
Proportional-integral feedback on DM coupling strength doubles time-averaged negativity under colored noise and yields 2.5 times better sensitivity than the shot-noise limit in quantum metrology simulations.
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Quantum Otto engine powered by an anisotropic Heisenberg XYZ model under independent local magnetic fields
Numerical analysis of a two-qubit XYZ Heisenberg quantum Otto engine shows that reduced longitudinal coupling and optimized anisotropy improve net work and efficiency, with concurrence changes between isomagnetic strokes correlating to efficiency gains.
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Optimizing Quantum Entanglement Preservation in a Qubit Qubit System with Dzyaloshinskii Moriya Interaction under Noisy Magnetic Fields via Feedback Control
Proportional-integral feedback on DM coupling strength doubles time-averaged negativity under colored noise and yields 2.5 times better sensitivity than the shot-noise limit in quantum metrology simulations.