In strong-coupling regime, sideband cooling of planar ion crystals (up to 91 ions) yields residual phonon occupation scaling as 1/N² after one pulse, reaching <2×10^{-4} with iterations; dynamics become independent of initial phonon statistics for large N.
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2026 2verdicts
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Proposes quantum beam-splitter cooling and thermometry for the center-of-mass mode in large trapped-ion crystals by performing a SWAP with collective spins followed by reset.
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Collective enhancement in sideband cooling of ion crystals
In strong-coupling regime, sideband cooling of planar ion crystals (up to 91 ions) yields residual phonon occupation scaling as 1/N² after one pulse, reaching <2×10^{-4} with iterations; dynamics become independent of initial phonon statistics for large N.
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Quantum Beam-Splitter Cooling and Thermometry in Large Trapped-Ion Crystals
Proposes quantum beam-splitter cooling and thermometry for the center-of-mass mode in large trapped-ion crystals by performing a SWAP with collective spins followed by reset.