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Inelastic and elastic collision rates for triplet states of ultracold strontium

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arxiv 0809.0936 v2 pith:Z2OT4HDV submitted 2008-09-05 physics.atom-ph

classification physics.atom-ph
keywords ratescollisionstateatomelasticinelasticlevelloss
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We report measurement of the inelastic and elastic collision rates for ^{88}Sr atoms in the (5s5p)^3P_0 state in a crossed-beam optical dipole trap. This is the first measurement of ultracold collision properties of a ^3P_0 level in an alkaline-earth atom or atom with similar electronic structure. Since the (5s5p)^3P_0 state is the lowest level of the triplet manifold, large loss rates indicate the importance of principle-quantum-number-changing collisions at short range. We also provide an estimate of the collisional loss rates for the (5s5p){^3P_2} state.

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  1. Measurement and control of the interaction frequency shift in bosonic optical lattice clocks

    physics.atom-ph 2026-08 conditional novelty 6.0 of 10

    The density-dependent clock shift in a 88Sr bosonic lattice clock is nonlinear and can be canceled at a magic atom number and laser detuning, yielding the first estimate a_eg = -125(12) a0.

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