Pump-probe spectroscopy on impurities in a potassium BEC reveals low-energy spectral features below the Bose polaron that are consistent with bipolaron formation.
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cond-mat.quant-gas 2years
2026 2verdicts
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Ground-state quantum Monte Carlo calculations demonstrate scale invariance of the polaron energy at the Mott-superfluid critical point in a lattice Bose gas and extract an unexplained scaling exponent.
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Observation of low-lying impurity states in Bose-Einstein condensates
Pump-probe spectroscopy on impurities in a potassium BEC reveals low-energy spectral features below the Bose polaron that are consistent with bipolaron formation.
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Scale invariance of the polaron energy at the Mott-superfluid critical point
Ground-state quantum Monte Carlo calculations demonstrate scale invariance of the polaron energy at the Mott-superfluid critical point in a lattice Bose gas and extract an unexplained scaling exponent.