Bose—Einstein Condensate in a Linear Trap with a Dimple Potential

Uncu, Haydar; Tarhan, Devrim

doi:10.1088/0253-6102/59/5/18

Cited by 4 publications

(6 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While not a kinetic theory, Uncu et al carried out some modeling of adiabatic dimple loading by considering conservation of entropy. They used a simple model for the dimple, parametrized solely by the depth and location [47][48][49].…”

Section: B Review Of Past Theoretical Studiesmentioning

confidence: 99%

“…As the density in the dimple grows, they see the development of a condensate. Theoretical steps have been taken to understand Bose condensation by this method [10,16,[44][45][46][47][48][49][50] (see Sec. I B for a brief review).…”

Section: Introduction a Overviewmentioning

confidence: 99%

“…As the density in the dimple grows, they see the development of a condensate. Theoretical steps have been taken to understand the kinetics of Bose con-densation by this method [10,16,[44][45][46][47][48][49]. However, a detailed quantitative study of how the condensate fraction, the temperature, and the characteristic time scales depend on the trap parameters and the initial conditions is, to our knowledge, still lacking.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Kinetics of Bose-Einstein condensation in a dimple potential

Dutta

Mueller

2015

Phys. Rev. A

View full text Add to dashboard Cite

We model the dynamics of condensation in a bimodal trap, consisting of a large reservoir region, and a tight "dimple" whose depth can be controlled. Experimental investigations have found that such dimple traps provide an efficient means of achieving condensation. In our kinetic equations, we include two-and three-body processes. The two-body processes populate the dimple, and lead to loss when one of the colliding atoms is ejected from the trap. The three-body processes produce heating and loss. We explain the principal trends, give a detailed description of the dynamics, and provide quantitative predictions for timescales and condensate yields. From these simulations, we extract optimal parameters for future experiments.

show abstract

Section: B Review Of Past Theoretical Studiesmentioning

confidence: 99%

Section: Introduction a Overviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Kinetics of Bose-Einstein condensation in a dimple potential

Dutta

Mueller

2015

Phys. Rev. A

View full text Add to dashboard Cite

show abstract

“…There is a body of literature on an ideal Bose gas in a uniform gravitational field [1,2,3,4,5]. The gas may be contained in an external potential, or a large box, and subjected to a uniform gravitational potential.…”

Section: Introductionmentioning

confidence: 99%

Semiclassical and quantum description of an ideal Bose gas in a uniform gravitational field

Bhaduri

Dijk

2016

Physics Letters A

View full text Add to dashboard Cite

We consider an ideal Bose gas contained in a cylinder in three spatial dimensions, subjected to a uniform gravitational field. It has been claimed by some authors that there is discrepancy between the semiclassical and quantum calculations in the thermal properties of such a system. To check this claim, we calculate the heat capacity and isothermal compressibility of this system semiclassically as well as from the quantum spectrum of the density of states. The quantum calculation is done for a finite number of particles. We find good agreement between the two calculations when the number of particles are taken to be large. We also find that this system has the same thermal properties as an ideal five dimensional Bose gas.

show abstract

“…While all of these previous experiments have been conducted with one wavelength of light, there already exist proposals for cold atom experiments which make use of light fields with multiple wavelengths illuminating the atoms simultaneously but with different spatial distributions, e.g. [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Multi-wavelength holography with a single spatial light modulator for ultracold atom experiments

Bowman¹,

Ireland²,

Bruce³

et al. 2015

Opt. Express

View full text Add to dashboard Cite

We demonstrate a method to independently and arbitrarily tailor the spatial profile of light of multiple wavelengths and we show possible applications to ultracold atoms experiments. A single spatial light modulator is programmed to create a pattern containing multiple spatially separated structures in the Fourier plane when illuminated with a single wavelength. When the modulator is illuminated with overlapped laser beams of different wavelengths, the position of the structures is wavelength-dependent. Hence, by designing their separations appropriately, a desired overlap of different structures at different wavelengths is obtained. We employ regional phase calculation algorithms and demonstrate several possible experimental scenarios by generating light patterns with 670 nm, 780 nm and 1064 nm laser light which are accurate to the level of a few percent. This technique is easily integrated into cold atom experiments, requiring little optical access.

show abstract

Bose—Einstein Condensate in a Linear Trap with a Dimple Potential

Cited by 4 publications

References 31 publications

Kinetics of Bose-Einstein condensation in a dimple potential

Kinetics of Bose-Einstein condensation in a dimple potential

Semiclassical and quantum description of an ideal Bose gas in a uniform gravitational field

Multi-wavelength holography with a single spatial light modulator for ultracold atom experiments

Contact Info

Product

Resources

About