Casimir effect

The ability to work-out the Casimir force between arbitrarily-shaped objects could be one step closer thanks to work done by physicists in the US. The team used an atomic force microscope to measure the force between two gold-coated spheres. This is unlike most experiments today, which are limited to ...

Energy will never cease to be a concern for human beings, so long as our species plans to keep growing and expanding. There's no shortage of scientists and engineers trying to come up with solutions that might help us avoid a catastrophic energy shortage. Some of these ideas seem pretty feasible, such ...

Koga is investigating the subtle effects caused by these fluctuations. This peculiar nature of vacuum, sometimes referred to as "quantum vacuum," is not just theoretical speculation. It has real, measurable effects on our physical reality. Although these effects are usually far too small to impact even the most ...

The Casimir effect is a force that's found between quantum objects inside a vacuum and occurs because of the fluctuation of electromagnetic waves. Under the realms of normal physics, researchers are unable to see this force. It's not until a quantum field is applied that it can be seen.

This energy, predicted seven decades ago by the Dutch scientist Hendrik Casimir, arises from quantum effects and can be seen experimentally by placing two opposing plates very close to each other in a vacuum. At close range, the plates repel each other, which could be useful to certain technologies.

Now, in a study published in the latest edition of Physical Review Letters, a team of researchers has shown that this force is stronger than previously thought. The study, which focused on developing an analytical expression for the lateral Casimir force experienced nanoparticles, could help scientists and ...

Researchers have uncovered new insights into a unique quantum force called the Casimir effect. This enhanced understanding of the quantum phenomenon could help nanotech engineers design better nanoscale objects to push medical and computational research forward.

But, in recent years, quantum physicists have shown that vacuums are actually filled by tiny electromagnetic fluctuations that can interfere with the activity of photons - particles of light - and produce a measurable force on objects. This is called the Casimir effect, and it was first predicted by physicists back in ...

The findings relate to an area of theoretical nanophotonics and quantum theory known as the Casimir Effect, a measurable force that exists between objects inside a vacuum caused by the fluctuations of electromagnetic waves. When studied using classical physics, the vacuum would not produce any force ...