Production of Rubidium Bose-Einstein Condensates at a 1 Hz Rate

Farkas, Daniel; Salim, Evan A.; Ramirez-Serrano, Jaime

doi:10.48550/arxiv.1403.4641

Cited by 12 publications

(20 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They have since crossed the divide from lab experiments to mobile and transportable devices (semi-filled symbols). [42][43][44][45], squares indicate experiments using dipole traps [46,47]. The diamond symbol indicates a Sr experiment reported in [48].…”

Section: Discussion and Comparisonmentioning

confidence: 99%

“…The fastest previously reported apparatus features a repetition rate of 1 Hz with 1.5 × 10 4 atoms in the condensed phase, using an atom chip [43]. The fastest BEC in a dipole trap was produced in 3.3 s with an atom number of 3.5 × 10 5 [46].…”

Section: Discussion and Comparisonmentioning

confidence: 99%

“…Comparison of the fastest BEC machines. Circles denote atom chip based experiments[42][43][44][45], squares indicate experiments using dipole traps[46,47]. The…”

mentioning

confidence: 99%

See 2 more Smart Citations

A high-flux BEC source for mobile atom interferometers

et al. 2015

View full text Add to dashboard Cite

Quantum sensors based on coherent matter-waves are precise measurement devices whose ultimate accuracy is achieved with Bose-Einstein condensates (BEC) in extended free fall. This is ideally realized in microgravity environments such as drop towers, ballistic rockets and space platforms. However, the transition from labbased BEC machines to robust and mobile sources with comparable performance is a challenging endeavor. Here we report on the realization of a miniaturized setup, generating a flux of 4 × 10 5 quantum degenerate 87 Rb atoms every 1.6 s. Ensembles of 1 × 10 5 atoms can be produced at a 1 Hz rate. This is achieved by loading a cold atomic beam directly into a multi-layer atom chip that is designed for efficient transfer from laser-cooled to magnetically trapped clouds. The attained flux of degenerate atoms is on par with current lab-based BEC experiments while offering significantly higher repetition rates. Additionally, the flux is approaching those of current interferometers employing Raman-type velocity selection of laser-cooled atoms. The compact and robust design allows for mobile operation in a variety of demanding environments and paves the way for transportable high-precision quantum sensors. arXiv:1501.00403v2 [physics.atom-ph]

show abstract

Section: Discussion and Comparisonmentioning

confidence: 99%

Section: Discussion and Comparisonmentioning

confidence: 99%

See 1 more Smart Citation

A high-flux BEC source for mobile atom interferometers

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The production of BECs in small-volume magnetic chip traps has provided one solution to the timescale problem [8,9]. While this method has recently achieved cycle times of one second with 87 Rb [10], it can only be applied to magnetic atoms.…”

Section: Introductionmentioning

confidence: 99%

Rapid cooling to quantum degeneracy in dynamically shaped atom traps

et al. 2016

View full text Add to dashboard Cite

We report on a general method for the rapid production of quantum degenerate gases. Using 174 Yb, we achieve an experimental cycle time as low as (1.6 − 1.8) s for the production of BoseEinstein condensates (BECs) of (0.5−1)×10 5 atoms. While laser cooling to 30 µK proceeds in a standard way, evaporative cooling is highly optimized by performing it in an optical trap that is dynamically shaped by utilizing the time-averaged potential of a single laser beam moving rapidly in one dimension. We also produce large (> 10 6 ) atom number BECs and successfully model the evaporation dynamics over more than three orders of magnitude in phase space density. Our method provides a simple and general approach to solving the problem of long production times of quantum degenerate gases.

show abstract

“…The atom chip forms the top of a ColdQuanta RuBECi -a two-chamber, ultrahigh vacuum system designed for the production of rubidium BECs. The RuBECi uses a double MOT approach to laser cooling alkali atoms, and has been described in detail elsewhere [19]. Here, we briefly discuss the differences in the system used for this work, which closely resembles the system described in [17].…”

mentioning

confidence: 99%

On-chip optical lattice for cold atom experiments

et al. 2015

Self Cite

View full text Add to dashboard Cite

An atom-chip-based integrated optical lattice system for cold and ultracold atom applications is presented. The retroreflection optics necessary for forming the lattice are bonded directly to the atom chip, enabling a compact and robust on-chip optical lattice system. After achieving Bose-Einstein condensation in a magnetic chip trap, we load atoms directly into a vertically oriented 1D optical lattice and demonstrate Landau-Zener tunneling. The atom chip technology presented here can be readily extended to higher dimensional optical lattices.

show abstract

Production of Rubidium Bose-Einstein Condensates at a 1 Hz Rate

Cited by 12 publications

References 43 publications

A high-flux BEC source for mobile atom interferometers

A high-flux BEC source for mobile atom interferometers

Rapid cooling to quantum degeneracy in dynamically shaped atom traps

On-chip optical lattice for cold atom experiments

Contact Info

Product

Resources

About