Quench dynamics in three-level dipole-interacting Rydberg arrays produce scalable spin-nematic squeezing with ξ² ∝ N^{-2/3} (all-to-all symmetric) or N^{-0.7} (antisymmetric), yielding F_Q ∝ N².
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Sequential weak measurements on a quantum harmonic oscillator enable simultaneous quadrature estimation, with backaction increasing information for some strengths and post-processing extending dynamic range while improving decoherence robustness.
Long-range interactions in the spin-one Heisenberg chain with anisotropy stabilize continuous symmetry breaking phases with logarithmic corrections to entanglement entropy and continuously varying critical exponents.
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Scalable spin-nematic squeezing in multi-level dipole-interacting Rydberg atom arrays
Quench dynamics in three-level dipole-interacting Rydberg arrays produce scalable spin-nematic squeezing with ξ² ∝ N^{-2/3} (all-to-all symmetric) or N^{-0.7} (antisymmetric), yielding F_Q ∝ N².
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Sequential Measurements as a Resource for Quantum Metrology
Sequential weak measurements on a quantum harmonic oscillator enable simultaneous quadrature estimation, with backaction increasing information for some strengths and post-processing extending dynamic range while improving decoherence robustness.
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Unconventional entanglement scaling and quantum criticality in the long-range spin-one Heisenberg chain with single-ion anisotropy
Long-range interactions in the spin-one Heisenberg chain with anisotropy stabilize continuous symmetry breaking phases with logarithmic corrections to entanglement entropy and continuously varying critical exponents.