# Angular stripe phase in spin-orbital-angular-momentum coupled Bose condensates

@article{Chen2020AngularSP, title={Angular stripe phase in spin-orbital-angular-momentum coupled Bose condensates}, author={Xiao-Long Chen and Shi-Guo Peng and Peng Zou and Xiaji Liu and Hui Hu}, journal={arXiv: Quantum Gases}, year={2020}, volume={2} }

We propose that novel superfluid with supersolid-like properties - angular stripe phase - can be realized in a two-dimensional spin-1/2 Bose gas with spin-orbital-angular-momentum coupling. We predict a rich ground-state phase diagram, including the vortex-antivortex pair phase, half-skyrmion phase, and two different angular stripe phases. The stripe phases feature modulated angular density-density correlation with sizable contrast and can occupy a relatively large parameter space. The low…

## 6 Citations

### Fine structure of the stripe phase in ring-shaped Bose-Einstein condensates with spin-orbital-angular-momentum coupling

- PhysicsPhysical Review A
- 2022

We report on a theoretical study of a ring-shaped Bose-Einstein condensate with Raman-induced spin-orbital-angular-momentum coupling. We analyze the structure of the ground-state of the system…

### Symmetry breaking and phase transitions in Bose-Einstein condensates with spin–orbital-angular-momentum coupling

- Physics
- 2020

Theoretical study is presented for a spinor Bose-Einstein condensate, whose two components are coupled by copropagating Raman beams with different orbital angular momenta. The investigation is…

### Topological spinor vortex matter on spherical surface induced by non-Abelian spin-orbital-angular-momentum coupling

- PhysicsNew Journal of Physics
- 2019

We propose a scheme to implement non-Abelian spin-orbital-angular-momentum (SOAM) coupling in spinor Bose–Einstein condensates using magnetic gradient coupling. For a spherical surface trap…

### Angular topological superfluid and topological vortex in an ultracold Fermi gas

- PhysicsPhysical Review Research
- 2022

We show that pairing in an ultracold Fermi gas under spin-orbital-angular-momentum coupling (SOAMC) can acquire topological characters encoded in the quantized angular degrees of freedom. The…

### Spin-orbital-angular-momentum-coupled quantum gases

- Physics
- 2022

(Dated: We brieﬂy review the recent progress of theories and experiments on spin-orbital-angular-momentum (SOAM)-coupled quantum gases. The coupling between the intrinsic degree of freedom of…

### Spin squeezing in a spin-orbit-coupled Bose-Einstein condensate

- Physics
- 2020

We study the spin squeezing in a spin-1/2 Bose-Einstein condensates (BEC) with Raman induced spin-orbit coupling (SOC). Under the condition of two-photon resonance and weak Raman coupling strength,…

## References

SHOWING 1-10 OF 76 REFERENCES

### Quantum depletion and superfluid density of a supersolid in Raman spin-orbit-coupled Bose gases

- PhysicsPhysical Review A
- 2018

We theoretically investigate a three-dimensional weakly interacting Bose gas with one-dimensional Raman-type spin-orbit coupling at zero temperature. By employing an improved ansatz, including…

### Ground-State Phase Diagram of a Spin-Orbital-Angular-Momentum Coupled Bose-Einstein Condensate.

- PhysicsPhysical review letters
- 2019

This work induces a Raman transition using a pair of Gaussian and Laguerre-Gaussian laser beams to realize a condensate whose orbital angular momentum and its internal spin states are coupled, paving the way to explore exotic quantum phases in the spin-orbital-angular-momentum coupled quantum gases.

### Spin-orbit coupled spinor Bose-Einstein condensates.

- PhysicsPhysical review letters
- 2010

This Letter studies spin-1/2 andspin-1 Bose-Einstein condensates with Rashba spin-orbit coupling, and finds that the condensate wave function will develop nontrivial structures.

### Quantum phases of Bose-Einstein condensates with synthetic spin-orbital-angular-momentum coupling

- Physics
- 2015

The experimental realization of emergent spin-orbit coupling through laser-induced Raman transitions in ultracold atoms paves the way for exploring novel superfluid physics and simulating exotic…

### Spin-orbit angular momentum coupling in a spin-1 Bose-Einstein condensate

- Physics
- 2016

We propose a simple model with spin and orbit angular momentum coupling in a spin-1 Bose-Einstein condensate, where three internal atomic states are Raman coupled by a pair of copropagating…

### Spin-Orbital-Angular-Momentum Coupled Bose-Einstein Condensates.

- PhysicsPhysical review letters
- 2018

Coupling between the atomic spin- and orbital-angular momentum (OAM) of the atom's center-of-mass motion in a Bose-Einstein condensate (BEC) is demonstrated and correlations between spin and OAM in the dressed state are observed and the spin texture is characterized.

### Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates

- Physics
- 2017

Supersolidity is an intriguing concept. It combines the property of superfluid flow with the long-range spatial periodicity of solids 1 , two properties which are often mutually exclusive. The…

### Approach for making visible and stable stripes in a spin-orbit-coupled Bose-Einstein superfluid

- Physics
- 2014

The striped phase exhibited by a spin-$1/2$ Bose-Einstein condensate with spin-orbit coupling is characterized by the spontaneous breaking of two continuous symmetries: gauge and translational…

### Excitation spectra of a Bose-Einstein condensate with an angular spin-orbit coupling

- Physics
- 2016

A theoretical model of a Bose-Einstein condensate with angular spin-orbit coupling has recently been proposed and it has been established that a half-skyrmion represents the ground state in a certain…

### Quantum and thermal fluctuations in a Raman spin-orbit-coupled Bose gas

- Physics
- 2017

We theoretically study a three-dimensional weakly interacting Bose gas with Raman-induced spin-orbit coupling at finite temperature. By employing a generalized Hartree-Fock-Bogoliubov theory with…