Decoherence of a Single-Ion Qubit Immersed in a Spin-Polarized Atomic Bath
| Autor: | Lothar Ratschbacher, L. Carcagni, J. M. Silver, Carlo Sias, Christoph Zipkes, Michael Köhl |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Physics
Quantum Physics Quantum decoherence Atomic Physics (physics.atom-ph) Degrees of freedom (physics and chemistry) General Physics and Astronomy FOS: Physical sciences Coupling (probability) 01 natural sciences Ion trapping Measure (mathematics) Physics - Atomic Physics 010305 fluids & plasmas Ion Quantum Gases (cond-mat.quant-gas) Quantum mechanics Qubit 0103 physical sciences Condensed Matter::Strongly Correlated Electrons Atomic physics Condensed Matter - Quantum Gases 010306 general physics Spin (physics) Quantum Physics (quant-ph) |
| Zdroj: | Physical review letters 110 (2013): 160402–160402. doi:10.1103/PhysRevLett.110.160402 info:cnr-pdr/source/autori:Ratschbacher, L.; Sias, C.; Carcagni, L.; Silver, J. M.; Zipkes, C.; Koehl, M./titolo:Decoherence of a Single-Ion Qubit Immersed in a Spin-Polarized Atomic Bath/doi:10.1103%2FPhysRevLett.110.160402/rivista:Physical review letters (Print)/anno:2013/pagina_da:160402/pagina_a:160402/intervallo_pagine:160402–160402/volume:110 Physical Review Letters |
| DOI: | 10.1103/PhysRevLett.110.160402 |
| Popis: | 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. DOI: 10.1103/PhysRevLett.110.160402 |
| Databáze: | OpenAIRE |
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