Heating of a Trapped Ion Induced by Dielectric Materials

Teller, Markus; Fioretto, Dario; Holz, P.P.; Schindler, Philipp; Messerer, Viktor; Schüppert, Klemens; Zou, Yueyang; Blatt, R.; Chiaverini, John; Sage, Jeremy; Northup, Tracy E.

doi:10.1103/physrevlett.126.230505

Cited by 24 publications

(26 citation statements)

References 40 publications

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“…Improved measurement sensitivities of < 1 ppb would facilitate characterization of the spectrum of intrinsic field fluctuations within rare-earth permanent magnet materials such as NdFeB or SmCo [45]. Such a system might serve as a magnetic analogue to the trappedion electric field sensors used for characterizing metals [46][47][48][49] and dielectrics [50].…”

Section: Discussionmentioning

confidence: 99%

Second-Scale $^9\text{Be}^+$ Spin Coherence in a Compact Penning Trap

McMahon,

Sawyer

2021

Preprint

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We report microwave spectroscopy of co-trapped 9 Be + and 40 Ca + within a compact permanent-magnetbased Penning ion trap. The trap is constructed with a reconfigurable array of NdFeB rings providing a 0.654 T magnetic field that is near the 0.6774-T magnetic-field-insensitive hyperfine transition in 9 Be + . Performing Ramsey spectroscopy on this hyperfine transition, we demonstrate nuclear spin coherence with a contrast decay time of > 1 s. The 9 Be + is sympathetically cooled by a Coulomb crystal of 40 Ca + , which minimizes 9 Be + illumination and thus mitigates reactive loss. Introducing a unique high-magnetic-field optical detection scheme for 40 Ca + , we perform spin state readout without a 729 nm shelving laser. We record a fractional trap magnetic field instability below 20 ppb (< 13 nT) at 43 s of averaging time with no magnetic shielding and only passive thermal isolation. We discuss potential applications of this compact, reconfigurable Penning trap.

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Section: Discussionmentioning

confidence: 99%

Second-Scale $^9\text{Be}^+$ Spin Coherence in a Compact Penning Trap

McMahon,

Sawyer

2021

Preprint

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“…Second, in analogy to anomalous heating in trapped ions [135], surface-induced dissipative forces create additional heating. These forces can have multiple origins, such as Johnson noise or patch potentials in Paul traps [135,180] or eddy currents or hysteresis losses for magnets trapped above superconductors [19,20,92]. In most cases, these mechanisms are not well understood for levitated particles.…”

Section: Open Challengesmentioning

confidence: 99%

Levitodynamics: Levitation and control of microscopic objects in vacuum

Gonzalez-Ballestero,

Aspelmeyer,

Novotny

et al. 2021

Preprint

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The control of levitated nano-and micro-objects in vacuum is of considerable interest, capitalizing on the scientific achievements in the fields of atomic physics, control theory and optomechanics. The ability to couple the motion of levitated systems to internal degrees of freedom, as well as to external forces and systems, provides opportunities for science and technology. Attractive research directions, ranging from fundamental quantum physics to commercial sensors, have been unlocked by the many recent experimental achievements, including motional ground-state cooling of an optically levitated nanoparticle. We review the status, challenges and prospects of levitodynamics, the mutidisciplinary research devoted to understanding, controlling, and using levitated nano-and micro-objects in vacuum.

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“…The equation can be evaluated numerically by means of finite-element analysis (FEA) software that solves Maxwell's equations for arbitrary geometries. We now turn to the experimental setup used to test our model, adapted from a setup designed for quantum networking [26] and depicted in Fig. 2.…”

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confidence: 99%

“…2. A 40 Ca + ion, trapped in a three-dimensional linear Paul trap at room temperature, is located in the center of a fiber-based optical cavity [26,27]. The trap has a radial ion-electrode distance of 250 µm.…”

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confidence: 99%

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