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We report an experimental apparatus and technique which simultaneously traps ions and cold atoms with spatial overlap. Such an apparatus is motivated by the study of ion–atom processes at… (More)

ions in an overlapping Paul trap. In such a mixture,the ions are created from the MOT atoms and allowed to accumulate in the ion trap, which resultsin a signi cant reduction in the number of steady… (More)

- Derek F. Jackson Kimball, Tri Khoa Nguyen, +6 authors Dmitry Budker
- 2009

Alkali vapor cells with antirelaxation coating (especially paraffin-coated cells) have been a central tool in optical pumping and atomic spectroscopy experiments for 50 years. We have discovered a… (More)

- Michaël Hemmer, Giovanni Cirmi, +9 authors Franz X. Kärtner
- Optics express
- 2018

We investigate a regime of parametric amplification in which the pump and signal waves are spectrally separated by only a few hundreds of GHz frequency - therefore resulting in a sub-THz frequency… (More)

A mixed system of cooled and trapped, ions and atoms, paves the way for ion assisted cold chemistry and novel many body studies. Due to the different individual trapping mechanisms, trapped atoms are… (More)

- Scott Dodelson, V. K. Narayanan, +48 authors Donald G. York
- 2014

Early photometric data from the Sloan Digital Sky Survey (SDSS) contain angular positions for 1.5 million galaxies. In companion papers, the angular correlation function w(θ) and 2D power spectrum Cl… (More)

- Siddharth Garia, Arnab K. Pal, Krishnamurthy Ravi, Archana M. Nair
- Journal of Petroleum Exploration and Production…
- 2019

This paper is an attempt to find the interdependence existing between petrophysical properties and ultrasonic wave velocities. Porosity and permeability, apart from other properties, are the two… (More)

In this paper, authors are interested in proving the Hyers - Ulam stability of a Fredholm integral equation of second kind with the trigonometric kernel function of the form (x) = x + Z 0 sin nx sin… (More)

The asymptotic and oscillatory behavior of solutions of Volterra summation equations yn = pn ± n−1 ∑ s=0 K(n, s)f(s, ys), n ∈ where = {0, 1, 2, . . .}, are studied. Examples are included to… (More)