Physicists have Created a Magnetic Wormhole in Lab
Physicists have created a wormhole that channels a magnetic field through space. Study co-author Jordi Prat-Camps, who is also a doctoral candidate in physics at the Autonomous University of Barcelona in Spain, said "This device can transmit the magnetic field from one point in space to another point, through a path that is magnetically invisible. From a magnetic point of view, this device acts like a wormhole, as if the magnetic field was transferred through an extra special dimension." The notion of a wormhole was originated from Albert Einstein's theories. In 1935, Einstein and his partner Nathan Rosen comprehended that the general theory of relativity permitted the presence of bridges that could link two dissimilar points in space-time.
Hypothetically these Wormholes, also known as Einstein-Rosen bridges, could permit something to tunnel rapidly between great distances (however the tunnels in this concept are very tiny, so normally wouldn't fit a space traveler). Up to now, no one has found proof that space-time wormholes really occur. This new wormhole isn't a space-time wormhole as such, but is instead an understanding of an innovative "invisibility cloak" first suggested in 2007 in the journal Physical Review Letters. This kind of wormhole would hide electromagnetic waves from sight from the outside. The actual difficulty was, to make the technique work for light required materials that are very impractical and tough to work with, Prat said.
As research continued, scientists discovered that the materials to create a magnetic wormhole already exist and are much easier to acquire. Especially, superconductors, which can transmit high levels of current, or charged particles, eject magnetic field lines from their centers, basically bending or twisting these lines. This fundamentally permits the magnetic field to do something different from its adjacent 3D environment, which is the first step in hiding the disruption in a magnetic field.
|Here, a picture of how the wormhole may work. Image Credit: ordi Prat-Camps and Universitat Autònoma de Barcelona|
So the group of scientists designed a three-layer object, comprising of two concentric spheres with an inner spiral-cylinder. The inner layer basically transferred a magnetic field from one end to the other, while the other two covers acted to hide the field's presence.
Generally, magnetic field lines discharge from a definite place and decay over time, but the existence of the magnetic field should be noticeable from points all around it. But, the new magnetic wormhole hides the magnetic field and funnels it from one side of the tube to another without being detected, seeming to pop out of nowhere on the other side of the cylinder, reported the scientists on Aug. 20 in the journal Scientific Reports.
Prat told Live Science "From a magnetic point of view, you have the magnetic field from the magnet disappearing at one end of the wormhole and appearing again at the other end of the wormhole,"
So What Are It’s Applications
There’s currently no way to recognize if similar magnetic wormholes prowl in space, but this technology could have uses on Earth, Prat said. For example, Magnetic Resonance Imaging (MRI) machines use a huge magnet and oblige people to be in a strongly bounded central tube for diagnostic imaging.
But if a device could transmit a magnetic field from one point to the other, it would be probable to take images of the body with the heavy-duty magnet located far away, freeing people from the enclosed location of an MRI machine, Prat said.
Prat said "If you want to apply this to medical techniques or medical equipment, for sure you will be interested in directing toward any given direction. A spherical shape is not the most practical geometry."
Physicists have Created a Magnetic Wormhole in Lab Reviewed by Umer Abrar on 8/21/2015 Rating: