Solitons Take Their Lumps in Two Dimensions

-

 Solitons Take Their Lumps in Two Dimensions



Solitons are solitary waves that travel like particles without changing shape. They have primarily been observed in settings where the underlying physics is 1D, such as along narrow water channels or inside thin optical fibers, but they can occur in higher dimensions as well. Davide Pierangeli from Sapienza University in Italy and his colleagues have used a structured light beam to become the first to produce a lump soliton, a mathematically exact soliton in two dimensions.

Solitary waves are known to occur in higher dimensions, with the most familiar example being “rogue waves” in the ocean. But these waves are not “integrable” solitons, Pierangeli explains. By that he means they are not exact solutions to a nonlinear model describing the wave behavior. “Genuine solitons have an elegant mathematical formulation that makes their behavior deterministic,” he says. Thanks to this property, integrable solitons maintain their shapes and can bounce elastically off each other when they collide.

Over 40 years ago, theorists predicted that integrable solitons could form on a 2D fluid surface, but generating these lump solitons required an impractically large surface tension. Pierangeli and his colleagues circumvented this problem by reproducing the lump-soliton model optically. A spatial light modulator imprinted a soliton-shaped peak on a laser beam’s 2D cross section. After the light traversed a nonlinear crystal, the researchers found the soliton shape intact, as expected. They also observed elastic collisions between two solitons sent along controlled trajectories across the beam’s profile.

The results could help explain nonlinear fluid phenomena, such as phenomena observed in microgravity experiments. In the longer term, this soliton demonstration might influence efforts in developing energy-efficient computing devices.

Global Energy Awards

Nomination link: https://globalenergyawards.org/award-nomination/...

Visit Our Website: globalenergyawards.org
Contact Us: support@globalenergyawards.org

Comments

Post a Comment

Popular posts from this blog

"Explore the Fourth Dimension"

-
Image
Fourth Dimension   The fourth dimension is a fascinating concept that has captured the imaginations of scientists, mathematicians, and artists for centuries. Unlike our three-dimensional world, which is limited by the linear flow of time, the fourth dimension is a realm of space and time that exists beyond our everyday experience. One way to visualize the fourth dimension is through the use of a hypercube, also known as a tesseract. A hypercube is a cube within a cube, with additional lines and edges connecting the vertices of the two cubes. It's impossible to construct in our three-dimensional world, but it provides a glimpse into what the fourth dimension might look like. Another way to understand the fourth dimension is through the concept of a wormhole, a theoretical passage through space-time that connects two distant points in the universe. A wormhole is like a shortcut through the fabric of space-time, allowing us to travel vast distances in an instant. While there is no de...
Read more

Quantum Tunneling Breakthrough: Technion Scientists Move Atoms With Precision

-
Image
In a groundbreaking experiment at the Technion Faculty of Physics , researchers demonstrated the transfer of atoms via quantum tunneling using optical tweezers. This novel method, which strategically avoids trapping atoms in the middle tweezer, represents a notable stride toward innovative quantum technologies. Quantum Tunneling in Optical Tweezers A new experiment at the Technion Faculty of Physics demonstrates how atoms can be transferred between locations using quantum tunneling with optical tweezers. Led by Prof. Yoav Sagi and doctoral student Yanay Florshaim from the Solid State Institute, this research was published recently in Science Advances. The experiment relies on optical tweezers , a powerful tool that uses focused laser beams to trap and manipulate tiny particles like atoms, molecules, and even living cells. Here’s how it works: when light interacts with matter, it creates a force proportional to the light’s intensity. This force, though too weak to impact larger objects,...
Read more

Physicists observe a new form of magnetism for the first time

-
Image
MIT physicists have demonstrated a new form of magnetism that could one day be harnessed to build faster, denser, and less power-hungry " spintronic " memory chips. The new magnetic state is a mash-up of two main forms of magnetism: the ferromagnetism of everyday fridge magnets and compass needles, and antiferromagnetism, in which materials have magnetic properties at the microscale yet are not macroscopically magnetized. Now, the MIT team has demonstrated a new form of magnetism , termed "p-wave magnetism." Physicists have long observed that electrons of atoms in regular ferromagnets share the same orientation of "spin," like so many tiny compasses pointing in the same direction. This spin alignment generates a magnetic field, which gives a ferromagnet its inherent magnetism. Electrons belonging to magnetic atoms in an antiferromagnet also have spin, although these spins alternate, with electrons orbiting neighboring atoms aligning their spins antiparalle...
Read more