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Entanglement of spin and position variables produced by spatially inhomogeneous magnetic fields of Stern-Gerlach type acting on spinor Bose-Einstein condensates may lead to interference effects at the level of one-boson densities. A model…

Condensed Matter · Physics 2009-11-07 S. Cruz-Barrios , M. C. Nemes , A. F. R. de Toledo Piza

We study trapped 2D atomic Bose-Einstein condensates with spin-independent interactions in the presence of an isotropic spin-orbit coupling, showing that a rich physics results from the non-trivial interplay between spin-orbit coupling,…

Quantum Gases · Physics 2015-05-30 Subhasis Sinha , Rejish Nath , Luis Santos

We consider a spin-1 Bose-Einstein condensate with Rashba spin-orbit coupling and dipole-dipole interaction confined in a cigar-shaped trap. Due to the combined effects of spin-orbit coupling, dipole-dipole interaction, and trap geometry,…

Quantum Gases · Physics 2016-10-26 Masaya Kato , Xiao-Fei Zhang , Daichi Sasaki , Hiroki Saito

We are pointing out relevant anisotropic effects, related to spatial separation, miscibility and mass-symmetry, due to dipole-dipole interactions in rotating binary dipolar Bose-Einstein condensates, by considering symmetric…

Quantum Gases · Physics 2019-04-10 Ramavarmaraja Kishor Kumar , Lauro Tomio , Arnaldo Gammal

The spin-orbit coupling plays an important role in the spin Hall effect and the topological insulators. In addition, the spin-orbit coupled Bose-Einstein condensates show remarkable quantum many-body phase transition. In this work we tune…

Quantum Gases · Physics 2023-10-03 Yao Li , Xuekai Ma , Xiaokun Zhai , Meini Gao , Haitao Dai , Stefan Schumacher , Tingge Gao

An effective spin-orbit coupling can be generated in cold atom system by engineering atom-light interactions. In this letter we study spin-1/2 and spin-1 Bose-Einstein condensates with Rashba spin-orbit coupling, and find that the…

Quantum Gases · Physics 2010-10-27 Chunji Wang , Chao Gao , Chao-Ming Jian , Hui Zhai

We study the effect of inter-condensate dipole-dipole interactions in a setup consisting of physically disconnected, single-species dipolar Bose-Einstein condensates. In particular, making use of the long-range and anisotropic nature of…

Quantum Gases · Physics 2024-11-28 Pranay Nayak , Ratheejit Ghosh , Rejish Nath

Recently achieved chiral condensates open intriguing avenues for the study of the chiral properties induced by current-density interactions. An attempt to include these features in a spinor system is presented, which gives rise to a…

The use of off-resonant standing light waves to manipulate ultracold atoms is investigated. Previous work has illustrated that optical pulses can provide efficient beam-splitting and reflection operations for atomic wave packets. The…

Other Condensed Matter · Physics 2007-06-19 K. J. Hughes , B. Deissler , J. H. T. Burke , C. A. Sackett

It is investigated theoretically that magnetized Bose-Einstein condensation (BEC) with the internal (spin) degrees of freedom exhibits a rich variety of phase transitions, depending on the sign of the interaction in the spin channel. In the…

Soft Condensed Matter · Physics 2009-10-31 Tomoya Isoshima , Tetsuo Ohmi , Kazushige Machida

We study the effects of dipolar interactions on a Bose-Einstein condensate with synthetically generated Rashba spin-orbit coupling. The dipolar interaction we consider includes terms that couple spin and orbital angular momentum in a way…

Quantum Gases · Physics 2013-11-12 Ryan M. Wilson , Brandon M. Anderson , Charles W. Clark

Experiments on ultracold gases offer unparalleled opportunities to explore quantum many-body physics, with excellent control over key parameters including temperature, density, interactions and even dimensionality. In some systems, atomic…

Quantum Gases · Physics 2010-10-22 P. Wicke , S. Whitlock , N. J. van Druten

We show that magnetic dipolar interactions can stabilize superfluidity in atomic gases but the dipole alignment direction required to achieve this varies, depending on whether the flow is oscillatory or continuous. If a condensate is made…

Quantum Gases · Physics 2015-06-15 S. Kühn , T. E. Judd

The formation of a dense Bose-Einstein condensate in dark spin states of two-dimensional dipolar excitons is shown to be driven by a dynamical transition to the long-lived dark states. The condensate is stabilized by strong dipole-dipole…

Quantum Gases · Physics 2018-05-09 Yotam Mazuz-Harpaz , Maxim Khodas , Ronen Rapaport

We investigate a radial spin hedgehog, analogous to the Dirac monopole, in an optically trapped atomic spin-1 Bose-Einstein condensate. By joining together a monopole-antimonopole pair, we may form a vortex line with free ends. We…

Condensed Matter · Physics 2009-11-10 C. M. Savage , J. Ruostekoski

We note the existence of a set of magnetic field values where a simple Hahn echo sequence refocuses the dynamics of the full dipolar interaction, for spin systems of electron donors in silicon. As the refocussing occurs for both arbitrary…

Quantum Physics · Physics 2014-12-09 T. S. Monteiro

We observe spin rotations caused by atomic collisions in a non-equilibrium Bose-condensed gas of $^{87}$Rb. Reflection from a pseudomagnetic barrier creates counterflow in which forward- and backward-propagating matter waves have partly…

Quantum Gases · Physics 2024-04-25 David C. Spierings , Joseph H. Thywissen , Aephraim M. Steinberg

We investigate the formation of bound states between dark-antidark solitary waves in two-component dipolar Bose-Einstein condensates. The excitation spectrum contains density and spin branches, and a rotonic feature of the spin branch…

Quantum Gases · Physics 2026-04-17 R. M. V. Röhrs , R. N. Bisset

Engineering spin polarization in dissipative bosonic systems is crucial for advancing quantum technologies, especially for applications in quantum metrology and space-based quantum simulations. This work demonstrates precise magnetic moment…

Quantum Gases · Physics 2025-06-24 Yaoyuan Fan , Shuoyu Shi , Lang Cao , Qiuxin Zhang , Dong Hu , Yu Wang , Xiaoji Zhou

We describe our experimental setup for creating stable Bose-Einstein condensates of Rb-85 with tunable interparticle interactions. We use sympathetic cooling with Rb-87 in two stages, initially in a tight Ioffe-Pritchard magnetic trap and…

Quantum Gases · Physics 2010-08-02 P. A. Altin , N. P. Robins , D. Doering , J. E. Debs , R. Poldy , C. Figl , J. D. Close
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