# Experimental realization of a long-lived striped Bose-Einstein condensate induced by momentum-space hopping

@article{Bersano2019ExperimentalRO, title={Experimental realization of a long-lived striped Bose-Einstein condensate induced by momentum-space hopping}, author={Thomas M. Bersano and Junpeng Hou and Sean M. Mossman and Vandna Gokhroo and Xi-Wang Luo and Kuei Sun and Chuanwei Zhang and P. Engels}, journal={Physical Review A}, year={2019} }

The search for supersolidlike phases has attracted great attention in the fields of condensed matter and ultracold atom physics. Here, we experimentally demonstrate a route for realizing a superfluid stripe phase in a spin-orbit coupled Bose-Einstein condensate by employing a weak optical lattice to induce momentum-space hopping between two spin-orbit band minima. We characterize the striped ground state as a function of lattice coupling strength and spin-orbit detuning and find good agreement…

## 12 Citations

Pseudo-Goldstone excitations in a striped Bose-Einstein condensate

- PhysicsPhysical Review A
- 2021

Significant experimental progress has been made recently for observing long-sought supersolid-like states in Bose-Einstein condensates, where spatial translational symmetry is spontaneously broken by…

Visible stripe phases in spin–orbital-angular-momentum coupled Bose–Einstein condensates

- Physics
- 2020

Recently, stripe phases in spin-orbit coupled Bose-Einstein condensates (BECs) have attracted much attention since they are identified as supersolid phases. In this paper, we exploit experimentally…

Coherent spin mixing via spin-orbit coupling in Bose gases

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We study beyond-mean-field properties of interacting spin-1 Bose gases with synthetic Rashba-Dresselhaus spin-orbit coupling at low energies. We derive a many-body Hamiltonian following a…

Supersolid stripes enhanced by correlations in a Raman spin-orbit-coupled system

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A Bose gas under the effect of Raman spin-orbit coupling (SOC) is analyzed using the discrete spin T-moves diffusion Monte Carlo method. Upon computing the energy as well as the static structure…

Angular Momentum Josephson Effect between Two Isolated Condensates

- PhysicsChinese Physics Letters
- 2021

We demonstrate that the two degenerate energy levels in spin-orbit coupled trapped Bose gases, coupled by a quenched Zeeman field, can be used for angular momentum Josephson effect. In a static…

The low-energy Goldstone mode in a trapped dipolar supersolid

- Physics, MedicineNature
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Observation of the collective mode responding to the superfluid stiffness—the low-energy Goldstone mode—provides direct evidence for phase rigidity, which is a key signature of supersolidity in an ultracold quantum gas.

Bound-state band reconstruction and resonance in a spin-1/2 Bose gas with one-dimensional spin-orbit coupling

- Physics
- 2020

In this work, we study two-body bound states in two-component Bose gas with a one-dimensional (1D) spin-orbit coupling (SOC) induced by Raman lasers. The finite Raman coupling strength generates…

Two-dimensional supersolidity in a circular trap

- Physics
- 2021

Dipolar condensates have recently been coaxed into supersolid phases supporting both superfluid and crystal excitations. While one-dimensional (1D) supersolids may be prepared via a roton…

Maintaining supersolidity in one and two dimensions

- PhysicsPhysical Review A
- 2021

We theoretically investigate supersolidity in three-dimensional dipolar Bose-Einstein condensates. We focus on the role of trap geometry in determining the dimensionality of the resulting droplet…

Correlations of stripe phase in one-dimensional spin-orbit coupled Bose gas

- PhysicsPhysical Review Research
- 2021

The authors study the interplay between interaction effects and the spin-orbit induced density oscillations of the stripe phase by taking quantum fluctuations into account.

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