On Trapping Geometry for Cold 87rb Atoms in a Radio-Frequency Dressed Potential

On trapping geometry for cold $^{87}{\text {Rb}}$ atoms in a radio-frequency dressed potentialOn trapping geometry for cold $$^{87}{\text {Rb}}$$ atoms in a radio-frequency dressed potential

Sourabh Sarkar, S. P. Ram, Kavish Bhardwaj +3 more

Journal of the Korean Physical SocietyApr 3, 20260 citations

Dressing Atoms with Multiple Radio Frequency Fields in Quadrupole and Ioffe-Pritchard Magnetic Traps

Sourabh Sarkar, Surjya Prakash Ram, Vibhuti Bhushan Tiwari +1 more

Jan 1, 20230 citations

On trapping geometry for cold atoms in a radio-frequency (rf) dressed potential

Sourabh Sarkar, Surjya Prakash Ram, Kavish Bhardwaj +3 more

We have investigated the atom trapping geometry for trapping of $^{87}{Rb}$ atoms in a radio-frequency (rf) dressed potential generated after superposing a strong linearly polarized rf-field on a static magnetic trap. For this, laser cooled atoms in a magneto-optical trap (MOT) in an ultra-high vacuum (UHV) chamber (pressure $\sim$ 1.5 $\times$ $10^{-10}$ Torr) were trapped in a quadrupole magnetic trap and evaporatively cooled before transferring them to the rf-dressed potential. The experimentally observed hollow shell type atom trapping geometry has been explained by theoretical modelling of the trapping potential.We have investigated the atom trapping geometry for trapping of $^{87}{Rb}$ atoms in a radio-frequency (rf) dressed potential generated after superposing a strong linearly polarized rf-field on a static magnetic trap. For this, laser cooled atoms in a magneto-optical trap (MOT) in an ultra-high vacuum (UHV) chamber (pressure $\sim$ 1.5 $\times$ $10^{-10}$ Torr) were trapped in a quadrupole magnetic trap and evaporatively cooled before transferring them to the rf-dressed potential. The experimentally observed hollow shell type atom trapping geometry has been explained by theoretical modelling of the trapping potential.

arXiv:2404.08391Apr 12, 20240 citations

Trapping Atoms With Radio Frequency Adiabatic Potentials

Hélène Perrin, B. M. Garraway

arXiv:1706.08063Advances in atomic, molecular, and optical physicsJan 1, 201743 citations

Anisotropic two-dimensional RF-dressed potentials for ultracold atoms

A. Chakraborty, Satya Ram Mishra

In this work, the RF-dressed potentials generated using a static magnetic field of a quadrupole trap and various radio frequency (RF) fields have been theoretically investigated for trapping and manipulating of cold atoms in a two-dimensional (2D) geometry. In this scheme, the RF fields of some particular polarizations and phases are shown to give rise to some novel static and time-dependent anisotropic two-dimensional potentials that are useful to trap and manipulate the cold atoms in the 2D geometry. The generated time-dependent 2D potentials, rotating on a circular ring, can be used to control the rotation and the oscillation of the cold-atom cloud on the path of the circular ring. The ultracold atoms trapped in these potentials may be used to investigate interesting physics phenomena, such as tunnelling and superfluidity.In this work, the RF-dressed potentials generated using a static magnetic field of a quadrupole trap and various radio frequency (RF) fields have been theoretically investigated for trapping and manipulating of cold atoms in a two-dimensional (2D) geometry. In this scheme, the RF fields of some particular polarizations and phases are shown to give rise to some novel static and time-dependent anisotropic two-dimensional potentials that are useful to trap and manipulate the cold atoms in the 2D geometry. The generated time-dependent 2D potentials, rotating on a circular ring, can be used to control the rotation and the oscillation of the cold-atom cloud on the path of the circular ring. The ultracold atoms trapped in these potentials may be used to investigate interesting physics phenomena, such as tunnelling and superfluidity.

arXiv:1404.1210Journal of the Korean Physical SocietyNov 1, 20145 citations

Density effects for cooled trapped resonance 'RB' atoms

Ritta Z. Vitlina, Vanderlei Salvador Bagnato, Gregory I. Surdutovich +1 more

ResumosJan 1, 19940 citations

On trapping geometry for cold

^{87}{\text {Rb}}

atoms in a radio-frequency dressed potential

We have investigated the atom trapping geometry for trapping of

^{87}{Rb}

atoms in a radio-frequency (rf) dressed potential generated after superposing a strong linearly polarized rf-field on a static magnetic trap. For this, laser cooled atoms in a magneto-optical trap (MOT) in an ultra-high vacuum (UHV) chamber (pressure

\sim

1.5

\times

10^{-10}

Torr) were trapped in a quadrupole magnetic trap and evaporatively cooled before transferring them to the rf-dressed potential. The experimentally observed hollow shell type atom trapping geometry has been explained by theoretical modelling of the trapping potential.