Boundary Floquet driving reconstructs bulk spectra and dynamics in non-Hermitian skin-effect systems via a new Floquet non-Bloch band theory valid at arbitrary frequencies.
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A Floquet spin chain with power-law graded Ising couplings is claimed to support time-crystalline order useful for batteries and sensing, but the scaling advantages reflect the model's growing energy scale, not a true quantum advantage.
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Boundary Floquet Control of Bulk non-Hermitian Systems
Boundary Floquet driving reconstructs bulk spectra and dynamics in non-Hermitian skin-effect systems via a new Floquet non-Bloch band theory valid at arbitrary frequencies.
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Power-law-graded Ising Interactions Stabilize Time Crystals Realizing Quantum Energy Storage and Sensing
A Floquet spin chain with power-law graded Ising couplings is claimed to support time-crystalline order useful for batteries and sensing, but the scaling advantages reflect the model's growing energy scale, not a true quantum advantage.