Collisional perturbation of states in atomic ytterbium by helium and neon

Kimball, Derek F. Jackson; Clyde, David; Budker, Dmitry; DeMille, David; Freedman, S. J.; Rochester, Simon; Stalnaker, Jason; Zolotorev, M.

doi:10.1103/physreva.60.1103

Cited by 21 publications

(21 citation statements)

References 24 publications

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“…The pioneering work on collisional deexcitation of the metastable P state in atomic Yb [12] is a good example as it is the key for the successful parity violation experiment [11]. In addition, quantum gate phase imprinting via collisions has been proposed [2,5,13], as well as the exchange interaction in Kondo lattice model simulations [10].…”

Section: Introductionmentioning

confidence: 99%

Spin-dependent collision of ultracold metastable atoms

et al. 2012

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Spin-polarized metastable atoms of ultracold ytterbium are trapped at high density and their inelastic collisional properties are measured. We reveal that in collisions of Yb( 3 P 2 ) with Yb( 1 S 0 ) there is relatively weak inelastic loss, but with a significant spin dependence consistent with Zeeman sublevel changes as being the dominant decay process. This is in strong contrast to our observations of Yb( 3 P 2 )-Yb( 3 P 2 ) collisional losses, which are, at low field, much more rapid and have essentially no spin dependence. Our results give a guideline to using the 3 P 2 states in many possible applications.

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Section: Introductionmentioning

confidence: 99%

Spin-dependent collision of ultracold metastable atoms

et al. 2012

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“…Fortunately, relaxation of only three lower order terms is essential for photon echo amplitude. Analysis of expressions (4)(5)(6)(7)(8)(9)(10)(11)(12) from4 implies the conclusion about polarization of photon echo; it depends in general case on three groups of factors: the type of transition and angular momenta of levels, the area of exciting pulses, and finally the specificity of collisions. In the absence of collisions, the authors of4 have predicted situations of no area dependence of polarization properties of photon echo, which may be realized for special types of transitions (0 -+ 1, 1/2 -+ 1/2, 1 -1), special case of low angular momenta J >> 1 wth additional requirement O << J, and the case of small ares for all types of transition O << 1.…”

Section: Photon Echo At Degenerate Transition: Basic Parametersmentioning

confidence: 99%

<title>Polarization properties of photon echo signals in ytterbium vapor: dependence on the area of exciting pulses</title>

Рубцова

Kovalyov

Khvorostov

et al. 2000

IRQO '99: Quantum Optics

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A brief review of theoretical predictions for photon echo polarization properties is presented from the viewpoint of their dependence on the area of exciting pulses and on the contribution of depolarizing collisions. The choice of intercombination transition in ytterbium vapor as subject of investigation is explained. First experimental results on kinetics of resonant fluorescence at the transition of Yb (6s2) 'So -(6s6p) 3P1 are presented for pure ytterbium vapor and its mixtures with Xe.

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“…In addition to the experiment described above we have investigated the possibility of measuring the PNC effect in a vapor cell, which may allow for higher atomic densities and higher statistical sensitivity [26,27]. As with the atomic beam experiment the atoms would be excited in the presence of crossed electric and magnetic fields and a change in the transition rate would be detected with a change in the handedness of the fields.…”

Section: Parity Nonconservation In Ytterbiummentioning

confidence: 99%

Atomic tests of discrete symmetries at Berkeley

English¹,

Kimball²,

Li³

et al. 2001

AIP Conference Proceedings

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Recent and ongoing experiments testing various fundamental discrete symmetries are discussed, including search for parity nonconservation in dysprosium and ytterbium, investigation of possibilities of searches for parity and time-reversal invariance violation in samarium, and a test of permutation properties of photons in a two-photon transition in barium. EUGENE COMMINS AND ATOMIC TESTS OF DISCRETE SYMMETRIES Professor Eugene Commins is a pioneer in a very tough business-testing fundamental symmetries of Nature with table-top atomic physics. A typical experiment of this kind takes anywhere from 8 to 15 years (and in some cases, even longer), which is a time scale not particularly well matched to that of funding agencies, or the time expected for a graduate student to complete his or her thesis. Unfortunately, not many experiments discover something unexpected, or even set limits for "new physics" at a desired level. Nevertheless, when such a result is eventually achieved, it is often of a scientific value that is hard to overestimate. Professor Commins has succeeded in bringing several experiments of this kind to fruition, starting from the first measurement of atomic parity violation in a highly forbidden atomic transition [1, 2, 3], and culminating in the most stringent limit on the P,T-violating dipole moment of the electron (discussed in B. C. Regan's contribution elsewhere in these Proceedings). In this paper, we review some of the recent and ongoing atomic tests of fundamental symmetries carried out at Berkeley by Eugene's colleagues, former students and "grandstudents." Eugene has participated in much of this work either directly, or as an unlimited source of practical advice and theoretical expertise.

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Collisional perturbation of states in atomic ytterbium by helium and neon

Cited by 21 publications

References 24 publications

Spin-dependent collision of ultracold metastable atoms

Spin-dependent collision of ultracold metastable atoms

<title>Polarization properties of photon echo signals in ytterbium vapor: dependence on the area of exciting pulses</title>

Atomic tests of discrete symmetries at Berkeley

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