Hexadecapole interaction in the atomic ground state of165Ho

Dankwort, W.; Ferch, J.; Gebauer, H.

doi:10.1007/bf01669225

Cited by 48 publications

(19 citation statements)

References 18 publications

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“…In a recent experiment the hexadecapole moment of 165Ho has been determined from muonic X-rays. The result is Q4o=0.52(10) eb 2 [6] and is of the theoretically expected order but disagrees with a previous value obtained from hyperfine structure investigations, using the atomic beam magnetic resonance (ABMR) method [7]. The measurements reported in this paper are part of a series of precision experiments with the aim to detect hexadecapole moments larger than 0.3 eb 2 and were performed on 141pr in the 419/2 ground state.…”

Section: Introductionmentioning

confidence: 40%

Hyperfine structure measurements in the4 I 9/2 ground state of141Pr

et al. 1975

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Abstract. Using the atomic beam magnetic resonance method, the five hyperfine structure separations in the 4f 3 6s 2 419. 2 ground state of 141 _ 59P1 have been measured. The results are:6477.913423 (17) 6 5 5556.359848 (6) 5 4 4633.023306 (2) 4 3 3708.201146 (5) 3 2 2782.190601 (15) From these quantities, the multipole interaction constants Ak, k = 1, 2, 3, 4 between the nucleus and the electron shell have been calculated. A 4 especially then served to give the following limit for the intrinsic hexadecapole moment: IQ4ol <0.4eb 2. Furthermore, the gs-factors of the 41 multiplet have been measured at magnetic fields of 300 Oe. The results are: gj(419.2) =0.731 037 1(15) gj(4Ii1~2) =0.965 1476 (20) gj(41132) = 1.106 319 7(40) gj(d'I152)= 1.197963 (30) Small corrections due to perturbations by neighbouring fine structure levels are included.

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Section: Introductionmentioning

confidence: 40%

Hyperfine structure measurements in the4 I 9/2 ground state of141Pr

et al. 1975

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“…[27]. This gives an energy of 24360.790(1) cm −1 , which is combined with precise measurements of the ground [28,29] and excited state [25] hyperfine splittings to yield an absolute frequency of the MOT laser given by 730.31682(3) THz. This value is used to calibrate the wavemeter that measure the frequency of the scanned 413 nm Rydberg laser, resulting in a total uncertainty of 200 MHz or 0.007 cm −1 in the absolute energy of the measured levels.…”

Section: Methodsmentioning

confidence: 98%

Measurement of holmium Rydberg series through magneto-optical trap depletion spectroscopy

et al. 2015

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We report measurements of the absolute excitation frequencies of 165 Ho 4f 11 6sns and 4f 11 6snd odd-parity Rydberg series. The states are detected through depletion of a magneto-optical trap via a two-photon excitation scheme. Measurements of 162 Rydberg levels in the range n = 40 − 101 yield quantum defects well described by the Rydberg-Ritz formula. We observe a strong perturbation in the ns series around n = 51 due to an unidentified interloper at 48515.47(4) cm −1 . From the series convergence, we determine the first ionization potential EIP = 48565.939(4) cm −1 , which is three orders of magnitude more accurate than previous work. This work represents the first time such spectroscopy has been done in Holmium and is an important step towards using Ho atoms for collective encoding of a quantum register.

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“…The hyperfine constants of the ground state multiplets are known with high accuracy [29,30] leading to the splittings shown in Fig. 4.…”

Section: A Register Encoding In Hyperfine Ground States Of Homentioning

confidence: 99%

Scaling the neutral-atom Rydberg gate quantum computer by collective encoding in holmium atoms

2008

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We discuss a method for scaling a neutral atom Rydberg gate quantum processor to a large number of qubits. Limits are derived showing that the number of qubits that can be directly connected by entangling gates with errors at the 10 −3 level using long range Rydberg interactions between sites in an optical lattice, without mechanical motion or swap chains, is about 500 in two dimensions and 7500 in three dimensions. A scaling factor of 60 at a smaller number of sites can be obtained using collective register encoding in the hyperfine ground states of the rare earth atom Holmium. We present a detailed analysis of operation of the 60 qubit register in Holmium. Combining a lattice of multi-qubit ensembles with collective encoding results in a feasible design for a 1000 qubit fully connected quantum processor.

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Hexadecapole interaction in the atomic ground state of165Ho

Cited by 48 publications

References 18 publications

Hyperfine structure measurements in the4 I 9/2 ground state of141Pr

Hyperfine structure measurements in the4 I 9/2 ground state of141Pr

Measurement of holmium Rydberg series through magneto-optical trap depletion spectroscopy

Scaling the neutral-atom Rydberg gate quantum computer by collective encoding in holmium atoms

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