# Maintaining supersolidity in one and two dimensions

@article{Poli2021MaintainingSI, title={Maintaining supersolidity in one and two dimensions}, author={E. Poli and Thomas Bland and Claudia Politi and Lauritz Klaus and Matthew A. Norcia and Francesca Ferlaino and Russell N. Bisset and Luis Santos}, journal={Physical Review A}, year={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 arrays, which range from one-dimensional to zigzag, through to two-dimensional supersolids in circular traps. Supersolidity is well established in one-dimensional arrays, and may be just as favorable in two-dimensional arrays provided that one appropriately scales the atom number to the trap volume. We…

## 7 Citations

### Two-Dimensional Supersolid Formation in Dipolar Condensates.

- PhysicsPhysical review letters
- 2022

Dipolar condensates have recently been coaxed to form the long-sought supersolid phase. While one-dimensional supersolids may be prepared by triggering a roton instability, we find that such a…

### Supersolidity and crystallization of a dipolar Bose gas in an infinite tube

- PhysicsPhysical Review A
- 2023

We calculate the ground states of a dipolar Bose gas confined in an infinite tube potential. We use the extended Gross-Pitaevskii equation theory and present a novel numerical method to efficiently…

### Domain supersolids in binary dipolar condensates

- Physics
- 2022

Two-component dipolar condensates are now experimentally producible, and we theoretically investigate the nature of supersolidity in this system. We predict the existence of a binary supersolid state…

### Ground-state stability and excitation spectrum of a one-dimensional dipolar supersolid

- PhysicsPhysical Review A
- 2023

We study the behavior of the excitation spectrum across the quantum phase transition from a superfluid to a supersolid phase of a dipolar Bose gas confined to a one-dimensional geometry. Including…

### How to realize a homogeneous dipolar Bose gas in the roton regime

- PhysicsPhysical Review A
- 2022

Homogeneous quantum gases open up new possibilities for studying many-body phenomena and have now been realised for a variety of systems. For gases with short-range interactions the way to make the…

### Can Angular Oscillations Probe Superfluidity in Dipolar Supersolids?

- PhysicsPhysical review letters
- 2022

Angular oscillations can provide a useful probe of the superfluid properties of a system. Such measurements have recently been applied to dipolar supersolids, which exhibit both density modulation…

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- 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…

### Transient Supersolid Properties in an Array of Dipolar Quantum Droplets

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We study theoretically and experimentally the emergence of supersolid properties in a dipolar Bose-Einstein condensate. The theory reveals a ground state phase diagram with three distinct regimes - a…

### Excitation Spectrum of a Trapped Dipolar Supersolid and Its Experimental Evidence.

- PhysicsPhysical review letters
- 2019

Theoretically, it is shown that, when entering the supersolid phase, two distinct excitation branches appear, respectively associated with dominantly crystal and superfluid excitations, and these results confirm infinite-system predictions, showing that finite-size effects play only a small qualitative role.

### Two-dimensional supersolidity in a dipolar quantum gas

- PhysicsNature
- 2021

The extension of supersolid properties into two dimensions is demonstrated by preparing a supersolid quantum gas of dysprosium atoms on both sides of a structural phase transition similar to those occurring in ionic chains17-20, quantum wires21,22 and theoretically in chains of individual dipolar particles.

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- 2019

Motivated by a recent experiment [L. Chomaz et al., Nat. Phys. 14, 442 (2018)], we perform numerical simulations of a dipolar Bose-Einstein condensate (BEC) in a tubular, periodic confinement at…

### Rotating a Supersolid Dipolar Gas.

- PhysicsPhysical review letters
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The moment of inertia of a harmonically trapped dipolar Bose-Einstein condensed gas is calculated as a function of the tunable scattering length parameter, providing the transition from the (fully) superfluid to the supersolid phase and eventually to an incoherent crystal of self-bound droplets.

### The low-energy Goldstone mode in a trapped dipolar supersolid

- PhysicsNature
- 2019

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.

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- 2022

We investigate the novel density distributions acquired by a dipolar Bose-Einstein condensed gas confined in a box potential, with special focus on the effects of supersolidity. Differently from the…

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- PhysicsPhysical Review A
- 2021

We study the properties of singly-quantized linear vortices in the supersolid phase of a dipolar Bose-Einstein condensate at zero temperature modeling $^{164}$Dy atoms. The system is extended in the…

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- 2021

We investigate the rotational properties of a dipolar Bose-Einstein condensate trapped in a toroidal geometry. Studying the ground states in the rotating frame and at fixed angular momenta, we…