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We demonstrate the existence of compactons matter waves in binary mixtures of Bose-Einstein condensates (BEC) trapped in deep optical lattices (OL) subjected to equal contributions of intra-species Rashba and Dresselhaus spin-orbit coupling…

Quantum Gases · Physics 2023-05-10 F. Kh. Abdullaev , M. S. A. Hadi , B. Umarov , L. A. Taib , Mario Salerno

By means of variational methods and systematic numerical analysis, we demonstrate the existence of stable solitons in three-dimensional (3D) free space, in the context of binary atomic condensates combining contact self-attraction and…

Quantum Gases · Physics 2015-12-23 Yong-Chang Zhang , Zheng-Wei Zhou , Boris A. Malomed , Han Pu

We investigate the ground-state structures of dipolar spin-orbit-coupled Bose-Einstein condensates in a toroidal trap. Combined effects of dipole-dipole interaction (DDI) and spin-orbit coupling (SOC) on the ground states of the system are…

Quantum Gases · Physics 2019-11-11 Hui Yang , Qingbo Wang , Linghua Wen

We propose to localize spin mixing dynamics in a spin-1 Bose-Einstein condensate by a temporal modulation of spin exchange interaction, which is tunable with optical Feshbach resonance. Adopting techniques from coherent control, we…

Quantum Gases · Physics 2015-05-14 Wenxian Zhang , Bo Sun , M. S. Chapman , L. You

We investigate theoretically the dynamics of a spin-orbit coupled soliton formed by a self- interacting Bose-Einstein condensate immersed in a random potential, in the presence of an artificial magnetic field. We find that due to the…

Quantum Gases · Physics 2018-08-17 Sh. Mardonov , V. V. Konotop , B. A. Malomed , M. Modugno , E. Ya. Sherman

Supersolidity is deeply connected with the emergence of Goldstone modes, reflecting the spontaneous breaking of both phase and translational symmetry. Here, we propose accessible signatures of these modes in harmonically trapped…

Quantum Gases · Physics 2021-09-21 Kevin T. Geier , Giovanni I. Martone , Philipp Hauke , Sandro Stringari

We present families of beating dark-dark solitons in spin-orbit (SO) coupled Bose-Einstein condensates. These families consist of solitons residing simultaneously in the two bands of the energy spectrum. The soliton components are…

Quantum Gases · Physics 2015-06-19 V. Achilleos , D. J. Frantzeskakis , P. G. Kevrekidis

In this letter, atom optic techniques are proposed to control the excitation of a Bose-Einstein condensate in an atomic trap. We show that by employing the dipole potential induced by four highly detuned travelling-wave laser beams with…

Statistical Mechanics · Physics 2009-10-30 Karl-Peter Marzlin , Weiping Zhang

The strongly interacting regime for attractive Bose-Einstein condensates (BECs) tightly confined in an extended cylindrical trap is studied. For appropriately prepared, non-collapsing BECs, the ensuing dynamics are found to be governed by…

Quantum Gases · Physics 2011-01-25 Alexander Tovbis , Mark A. Hoefer

We study the magnetic soliton dynamics of spinor Bose-Einstein condensates in an optical lattice which results in an effective Hamiltonian of anisotropic pseudospin chain. A modified Landau-Lifshitz equation is derived and exact magnetic…

Other Condensed Matter · Physics 2009-11-11 Z. D. Li , P. B. He , L. Li , J. Q. Liang , W. M. Liu

We investigate the structure of trapped Bose-Einstein condensates (BECs) with long-range anisotropic dipolar interactions. We find that a small perturbation in the trapping potential can lead to dramatic changes in the condensate's density…

Other Condensed Matter · Physics 2010-02-08 Ryan M. Wilson , Shai Ronen , Han Pu , John L. Bohn

We study the quench dynamics of a Bose-Einstein condensate under a Raman-assisted synthetic spin-orbit coupling. To model the dynamical process, we adopt a self-consistent Bogoliubov approach, which is equivalent to applying the…

Quantum Gases · Physics 2016-06-01 Tian-Shu Deng , Wei Zhang , Wei Yi , Guang-Can Guo

In this work we demonstrate a dynamic process in which SO coupling can coherently produce s-wave Feshbach molecules from a fully polarized Fermi gas, and can induce a coherent oscillation between Feshbach molecules and spin polarized gas.…

We experimentally investigate the phase winding dynamics of a harmonically trapped two-component BEC subject to microwave induced Rabi oscillations between two pseudospin components. While the single particle dynamics can be explained by…

Quantum Gases · Physics 2013-12-31 C. Hamner , Yongping Zhang , J. J. Chang , Chuanwei Zhang , P. Engels

Solitons play a fundamental role in dynamics of nonlinear excitations. Here we explore the motion of solitons in one-dimensional uniform Bose-Einstein condensates subjected to a spin-orbit coupling (SOC). We demonstrate that the spin…

Quantum Gases · Physics 2016-12-21 Lin Wen , Q. Sun , Yu Chen , Deng-Shan Wang , J. Hu , H. Chen , W. -M. Liu , G. Juzeliūnas , Boris A. Malomed , An-Chun Ji

We study the formation of spin-1 symbiotic spinor solitons in a quasi-one- (quasi-1D) and quasi-two-dimensional (quasi-2D) hyper-fine spin $F=1$ ferromagnetic Bose-Einstein condensate (BEC). The symbiotic solitons necessarily have a…

Quantum Gases · Physics 2021-08-12 S K Adhikari

The quantum emulation of spin-momentum coupling (SMC), a crucial ingredient for the emergence of topological phases, is currently drawing considerable interest. In previous quantum gas experiments, typically two atomic hyperfine states were…

Quantum Gases · Physics 2016-03-01 M. A. Khamehchi , Chunlei Qu , M. E. Mossman , Chuanwei Zhang , P. Engels

The realization of artificial gauge fields and spin-orbit coupling for ultra-cold quantum gases promises new insight into paradigm solid state systems. Here we experimentally probe the dispersion relation of a spin-orbit coupled…

Quantum Gases · Physics 2015-06-19 C. Hamner , Yongping Zhang , M. A. Khamehchi , Matthew J. Davis , P. Engels

Spin-orbit coupled ultra-cold atoms provide an intriguing new avenue for the study of rich spin dynamics in superfluids. In this Letter, we observe Zitterbewegung, the simultaneous velocity (thus position) and spin oscillations, of neutral…

Quantum Gases · Physics 2013-08-29 Chunlei Qu , Chris Hamner , Ming Gong , Chuanwei Zhang , Peter Engels

It is known that the interplay of the spin-orbit-coupling (SOC) and mean-field self-attraction creates stable two-dimensional (2D) solitons (ground states) in spinor Bose-Einstein condensates. However, SOC destroys the system's Galilean…

Quantum Gases · Physics 2022-02-23 Hidetsugu Sakaguchi , Fumihide Hirano , Boris A. Malomed
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