A pumping approach for computing dynamical structure factors on quantum computers directly targets specific frequencies by time-evolving with an oscillating perturbation, demonstrated on 20-qubit trapped-ion hardware.
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A new Zitterbewegung velocity is identified from the quantum Liouville equation using out-of-phase components of the quantum geometric tensor; it resolves the position-shift paradox upon integration of semiclassical equations and connects to the minimum conductivity of massless Dirac fermions.
Optimization of doping, bias, and geometry in SiC p-i-n diodes reduces charge noise and optical linewidth for embedded divacancy spin centers, with a new leakage-current noise formalism mitigated by defect placement away from surfaces.
Rotated anisotropic Fermi surfaces generate a continuous, non-quantized transverse conductivity in 2D via broken mirror symmetry alone.
Nonlinear thermal and thermoelectric responses are shown to encode quantum geometry and satisfy relations parallel to the Wiedemann-Franz and Mott laws in systems with broken symmetries.
citing papers explorer
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Dynamical structure factor with a pumping approach on a trapped-ion quantum computer
A pumping approach for computing dynamical structure factors on quantum computers directly targets specific frequencies by time-evolving with an oscillating perturbation, demonstrated on 20-qubit trapped-ion hardware.
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Zitterbewegung velocity in semiclassical electron dynamics
A new Zitterbewegung velocity is identified from the quantum Liouville equation using out-of-phase components of the quantum geometric tensor; it resolves the position-shift paradox upon integration of semiclassical equations and connects to the minimum conductivity of massless Dirac fermions.
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Enhancing Coherence of Spin Centers in p-n Diodes via Optimization Algorithms
Optimization of doping, bias, and geometry in SiC p-i-n diodes reduces charge noise and optical linewidth for embedded divacancy spin centers, with a new leakage-current noise formalism mitigated by defect placement away from surfaces.
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Transverse response from anisotropic Fermi surfaces
Rotated anisotropic Fermi surfaces generate a continuous, non-quantized transverse conductivity in 2D via broken mirror symmetry alone.
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Nonlinear thermal and thermoelectric transport from quantum geometry
Nonlinear thermal and thermoelectric responses are shown to encode quantum geometry and satisfy relations parallel to the Wiedemann-Franz and Mott laws in systems with broken symmetries.