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The process of stimulated Raman adiabatic passage (STIRAP) provides a possible route for the generation of a coherent molecular Bose-Einstein condensate (BEC) from an atomic BEC. We analyze this process in a three-dimensional mean-field…

统计力学 · 物理学 2009-11-07 P. D. Drummond , K. V. Kheruntsyan , D. J. Heinzen , R. H. Wynar

We analyze coherent two-color photoassociation of a Bose-Einstein condensate, focusing on stimulated Raman adiabatic passage (STIRAP) in free-bound-bound transitions from atoms to molecules. This problem is of particular interest since…

原子物理 · 物理学 2009-10-31 Matt Mackie , Ryan Kowalski , Juha Javanainen

Collective two-color photoassociation of a freely-interacting 87Rb Bose-Einstein condensate is theoretically examined, focusing on stimulated Raman adiabatic passage (STIRAP) from an atomic to a stable molecular condensate. In particular,…

原子物理 · 物理学 2016-09-08 Matt Mackie , Anssi Collin , Juha Javanainen

We theoretically examine Raman photoassociation of a Bose-Einstein condensate, revisiting stimulated Raman adiabatic passage (STIRAP). Due to collisional mean-field shifts, efficient molecular conversion requires strong coupling and low…

原子物理 · 物理学 2007-05-23 Matt Mackie , Kari Harkonen , Anssi Collin , Kalle-Antti Suominen , Juha Javanainen

We generalize the idea of chainwise stimulated Raman adiabatic passage (STIRAP) [Kuznetsova \textit{et al.} Phys. Rev. A \textbf{78}, 021402(R) (2008)] to a photoassociation-based chainwise atom-molecule system, with the goal of directly…

量子气体 · 物理学 2015-05-18 Jing Qian , Weiping Zhang , Hong Y. Ling

We propose the use of stimulated Raman adiabatic passage (STIRAP) to offer a fast high fidelity method of performing SU(2) rotations on spinor Bose Einstein condensates (BEC). Past demonstrations of BEC optical control suffer from…

量子气体 · 物理学 2016-12-21 Andreas Thomasen , Tetsuya Mukai , Tim Byrnes

We report the achievement of stimulated Raman adiabatic passage (STIRAP) in the microwave frequency range between internal states of a Bose-Einstein condensate (BEC) magnetically trapped in the vicinity of an atom chip. The STIRAP protocol…

We propose a robust scheme to prepare three-dimensional entanglement states between a single atom and a Bose-Einstein Condensate (BEC) via stimulated Raman adiabatic passage (STIRAP) techniques. The atomic spontaneous radiation, the cavity…

量子物理 · 物理学 2015-05-20 Li-Bo Chen , Peng Shi , Chun-Hong Zheng , Yong-Jian Gu

Using the technique of stimulated Raman adiabatic passage (STIRAP) we have coherently transferred ultracold 87Rb2 Feshbach molecules into a more deeply bound vibrational quantum level. Our measurements indicate a high transfer efficiency of…

其他凝聚态物理 · 物理学 2009-11-11 K. Winkler , F. Lang , G. Thalhammer , P. v. d. Straten , R. Grimm , J. Hecker Denschlag

We survey results on the creation of heteronuclear Fermi molecules by tuning a degenerate Bose-Fermi mixture into the neighborhood of an association resonance, either photoassociation or Feshbach, as well as the subsequent prospects for…

原子物理 · 物理学 2016-09-08 Matt Mackie , Olavi Dannenberg , Jyrki Piilo , Kalle-Antti Suominen , Juha Javanainen

We examine a scheme for the optical creation of a superfluid vortex in a trapped Bose-Einstein condensate (BEC), using the stimulated Raman adiabatic passage (STIRAP) technique. By exposing an oblate, axis-symmetric condensate to two…

软凝聚态物质 · 物理学 2007-05-23 G. Nandi , R. Walser , W. P. Schleich

We consider a method of sub-wavelength superlocalization and patterning of atomic matter waves via a two dimensional stimulated Raman adiabatic passage (2D STIRAP) process. An atom initially prepared in its ground level interacts with a…

We theoretically investigate Raman photoassociation of a degenerate Bose-Fermi mixture of atoms and the subsequent prospect for anomalous (Cooper) pairing between atoms and molecules. Stable fermionic molecules are created via…

原子物理 · 物理学 2016-09-08 Matt Mackie , Olavi Dannenberg , Jyrki Piilo , Kalle-Antti Suominen , Juha Javanainen

The irreversible transport of multi-component Bose-Einstein condensate (BEC) is investigated within the Stimulated Adiabatic Raman Passage (STIRAP) scheme. A general formalism for a single BEC in M-well trap is derived and analogy between…

其他凝聚态物理 · 物理学 2014-02-04 V. O. Nesterenko , A. N. Novikov , F. F. de Souza Cruz , E. L. Lapolli

We investigate the stimulated Raman adiabatic passage in two-color photoassociation for a atom-molecule Bose-Einstein condensate. By applying two time-varying Guassian laser pulses that fulfill generalized two-photon resonance condition, we…

量子物理 · 物理学 2015-05-13 Guang-Ri Jin , Sang Wook Kim

Robust stimulated Raman exact passages are requisite for controlling nonlinear quantum systems, with the wide applications ranging from ultracold molecules, non-linear optics to superchemistry. Inspired by shortcuts to adiabaticity, we…

量子气体 · 物理学 2021-02-16 JingJun Zhu , Xi Chen

We develop a complete theoretical description of photoassociative Stimulated Raman Adiabatic Passage (STIRAP) near a Feshbach resonance in a thermal atomic gas. We show that it is possible to use low intensity laser pulses to directly…

量子物理 · 物理学 2015-05-13 Elena Kuznetsova , Susanne F. Yelin , Marko Gacesa , Philippe Pellegrini , Robin Côté

We associate Sr atom pairs on sites of a Mott insulator optically and coherently into weakly-bound ground-state molecules, achieving an efficiency above 80\%. This efficiency is 2.5 times higher than in our previous work [S. Stellmer, B.…

量子气体 · 物理学 2017-07-25 Alessio Ciamei , Alex Bayerle , Chun-Chia Chen , Benjamin Pasquiou , Florian Schreck

We study the conversion of $^{40}$K and $^{87}$Rb atoms into stable molecules through the stimulated Raman adiabatic passage (STIRAP) in photoassociation assisted with Feshbach resonance. Starting with the mean-field Langrange density, we…

软凝聚态物质 · 物理学 2007-11-24 Li-Hua Lu , You-Quan Li

We theoretically explore photoassociation by Adiabatic Passage of two colliding cold ^{85}Rb atoms in an atomic trap to form an ultracold Rb_2 molecule. We consider the incoherent thermal nature of the scattering process in a trap and show…

量子物理 · 物理学 2009-11-13 Evgeny A. Shapiro , Moshe Shapiro , Avi Pe'er , Jun Ye
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