# Quantum Turbulent Structure in Light.

@article{Alperin2019QuantumTS, title={Quantum Turbulent Structure in Light.}, author={Samuel N. Alperin and Abigail L. Grotelueschen and Mark E. Siemens}, journal={Physical review letters}, year={2019}, volume={122 4}, pages={ 044301 } }

The infinite superpositions of random plane waves are known to be threaded with vortex line singularities which form complicated tangles and obey strict topological rules. We observe that within these structures, a timelike axis appears to emerge with which we can define vortex velocities in a useful way: With both numerical simulations and optical experiments, we show that the statistics of these velocities match those of turbulent quantum fluids such as superfluid helium and atomic Bose…

## 12 Citations

### Superdiffusion of quantized vortices uncovering scaling behavior of quantum turbulence

- Physics
- 2021

Generic scaling laws, such as the Kolmogorov’s 5/3-law, are mile-stone achievements of turbulence research in classical ﬂuids. For quantum ﬂuids such as atomic Bose-Einstein condensates, superﬂuid…

### Structuring Light for Investigating Optical Vortices

- Physics
- 2020

Vortices are well known in our world: tornadoes, hurricanes, and quickly stirred iced tea all demonstrate the vortex phenomenon. In addition to these classical fluids, vortices exist in laser light.…

### Formation and dynamics of quantum hydrodynamical breathing-ring solitons

- Physics
- 2020

We show that exciton-polariton condensates may exhibit a fundamental, self-localized nonlinear excitation in quantum hydrodynamical systems, which takes the form of a dark ring-shaped breather. We…

### Superdiffusion of quantized vortices uncovering scaling laws in quantum turbulence

- PhysicsProceedings of the National Academy of Sciences
- 2021

An experiment where a tangle of vortices in superfluid 4He are decorated with solidified deuterium tracer particles results in an apparent superdiffusion of the vortice, and a previously unknown power-law scaling of the vortex–velocity temporal correlation is uncovered.

### Optical vortex braiding with Bessel beams.

- PhysicsOptics letters
- 2020

The braiding of optical vortices in a laser beam with more than 2π rotation by superposing Bessel modes with a plane wave is proposed and how braiding can be controlled experimentally for any number of vortsices is discussed.

### Speckled cross-spectral densities and their associated correlation singularities for a modern source of partially coherent x rays

- PhysicsPhysical Review A
- 2019

We consider a realistic model for calculating the cross-spectral density of partially coherent beams from an x-ray undulator in a modern storage ring. This two-point coherence function is seen to…

### Measurement of Vortex Interactions in Light

- PhysicsFrontiers in Optics + Laser Science APS/DLS
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We experimentally and theoretically study dynamics of a pair of point vortices in a large Gaussian laser beam. We observe annihilation of opposite charge optical vortices and characterize the effect…

### Optical Vortex Interactions Depend on Core Structure

- Physics2020 Conference on Lasers and Electro-Optics (CLEO)
- 2020

We elucidate the impact of optical vortex structure on pair coupling and two-body dynamics. Vortices with hyperbolic tangent cross-sections are found to have reduced coupling strength as evidenced by…

### Directional dark-field implicit x-ray speckle tracking using an anisotropic-diffusion Fokker-Planck equation

- PhysicsPhysical Review A
- 2021

When a macroscopic-sized non-crystalline sample is illuminated using coherent x-ray radiation, a bifurcation of photon energy flow may occur. The coarse-grained complex refractive index of the sample…

### X-ray phase-contrast imaging: a broad overview of some fundamentals

- PhysicsAdvances in Imaging and Electron Physics
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