We report on the immersion of a spin qubit encoded in a single trapped ion into a spin-polarized neutral atom environment, which possesses both continuous (motional) and discrete (spin) degrees of freedom. The environment offers the possibility of a precise microscopic description, which allows us to understand dynamics and decoherence from first principles. We observe the spin dynamics of the qubit and measure the decoherence times (T(1) and T(2)), which are determined by the spin-exchange interaction as well as by an unexpectedly strong spin-nonconserving coupling mechanism.

Decoherence of a single-ion qubit immersed in a spin-polarized atomic bath / Ratschbacher, L; Sias, Carlo; Carcagni, L; Silver, J. M; Zipkes, C; Köhl, M.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 110:16(2013), p. 160402. [10.1103/PhysRevLett.110.160402]

Decoherence of a single-ion qubit immersed in a spin-polarized atomic bath

SIAS, CARLO;
2013

Abstract

We report on the immersion of a spin qubit encoded in a single trapped ion into a spin-polarized neutral atom environment, which possesses both continuous (motional) and discrete (spin) degrees of freedom. The environment offers the possibility of a precise microscopic description, which allows us to understand dynamics and decoherence from first principles. We observe the spin dynamics of the qubit and measure the decoherence times (T(1) and T(2)), which are determined by the spin-exchange interaction as well as by an unexpectedly strong spin-nonconserving coupling mechanism.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11696/50666
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