Astronomy
Apr 18, 2023
Could this copycat black hole be a new type of star?
It looks like a black hole and bends light like a black hole, but it could actually be a new type of star.
Search results for soliton
Condensed Matter
Apr 12, 2023
Fiber optics shed light on solid-state physics phenomena
Researchers from two laboratories at ULB have realized a synthetic dimension for light using a fiber optic ring. This ingenious system simulates the periodic motion of a particle in a crystal in order to study its behavior ...
Social Sciences
Mar 16, 2023
A new approach to measuring and understanding multidirectional polarization
Germany, India, Mexico, and Spain. As multiparty democracies, these countries present a more complex picture of what brings people together—or divides them. Using social media data, a group of researchers proposes a novel ...
Mathematics
Feb 16, 2023
Shake and divide: The cocktail formula for global consensus
For yet another year, the world's conference on climate change—COP27—concluded with few agreements and a clear division between North and South.
Optics & Photonics
Feb 2, 2023
Near-zero-dispersion soliton and broadband modulational instability Kerr microcombs in anomalous dispersion
Microresonators based frequency combs, microcombs, have attracted huge interest in the last decades for their revolutionary performance of compact size, flexible comb spacing, and broad bandwidth. Wide applications of microcombs ...
Optics & Photonics
Jan 19, 2023
Photonic hopfions: Light shaped as a smoke ring that behaves like a particle
We can frequently find in our daily lives a localized wave structure that maintains its shape upon propagation—picture a smoke ring flying in the air. Similar stable structures have been studied in various research fields ...
Optics & Photonics
Jan 18, 2023
Emergent behavior observed in self-interacting light
Particles of light—photons—that are forced to interact with each other through specially structured glass demonstrate behavior evocative of the "fractional quantum Hall effect," a phenomenon that garnered the 1998 Nobel ...
Economics & Business
Dec 29, 2022
Study examines how many scientists a region needs to achieve dominance in a field
To find out how many scientists a region needs to become a leader in a discipline, researchers at Complexity Science Hub tracked millions of scientists moving across the globe. Their result: there is no critical mass of scientists, ...
Optics & Photonics
Dec 15, 2022
A birefringence-managed normal-dispersion fiber laser delivering energy-tunable chirp-free solitons
Over the past decades, researchers have demonstrated conventional solitons, stretched pulses, self-similar pulses, and dissipative solitons by managing the dispersion and nonlinearity of fiber lasers. However, new types of ...
Optics & Photonics
Dec 13, 2022
Extremely broadband source provides bright light spanning ultraviolet to terahertz wavelengths
Researchers have developed a very bright light source that covers seven optical octaves—from ultraviolet (UV) to terahertz (THz) wavelengths. The tabletop coherent source features a spectral brightness up to five orders ...
