Physicists have recently developed a system of two linked time crystals, described as "strange quantum systems" that are stuck in an endless loop to which the standard regulations of thermodynamics are not applicable.
By linking two-time crystals together, a Scientific American specified report, the physicists
are hoping to finally use the technology to develop a new kind of quantum
computer. According to the lead scientist on the program Samuli Autti, from
Lancaster University in the United Kingdom, it is an unusual privilege to
examine a novel phase of matter.
Autti also explained, "we encounter normal crystals all the time" every day, from the ice in a cocktail to the diamonds found in jewelry. More so, while crystals are stunning, they depict a breakdown of the standard symmetries of nature.
A 'Beautiful Symmetry'
Essentially, the laws of physics are symmetric
through space. This means that the essential equations of electromagnetism,
gravity, or quantum mechanics are applicable equally throughout the totality of
the volume of the universe.
They work in any direction, as well. Therefore,
a laboratory experiment that is rotated 90 degrees needs to produce the same
results, all else equal. However, in a crystal, this beautiful symmetry gets
broken. The crystal's molecules arrange themselves in a preferred direction,
creating a repeating spatial construction.
In the physicists' jargon, a crystal is a perfect example of "spontaneous symmetry breaking," the fundamental laws of physics stay symmetric, although the molecules' arrangement isn't.
'Magnons'
In this new research, Live
Science reported that Autti and his team developed their time crystal.
Magnons are "quasiparticles" emerging in a group of atoms collective
state. In this circumstance, the researchers took helium-3, a helium atom with
two protons but just one neutron, and cooled it to within a ten-thousandth
degree above absolute zero.
At this temperature, the helium-3 turned into a
Bose-Einstein condensate, where all the atoms share a common quantum condition
and work in accordance with each other.
In that condensate, all of the electrons' spins in the helium-3 connected and worked together, producing waves of magnetic energy known as "magnons." These waves sloshed back and forth forever, which makes them a time crystal.
The Goal to Develop Time Crystals
The team took two groups of magnons, each of
which operates as its crystal, and brought them close enough to influence each
other. The magnons' combined system functioned as a one-time crystal with two
different conditions.
Researchers in the team hope that their
experiment can elucidate the link between quantum and classical physics, a
similar World News Era report said. Their goal is to develop
time crystals that interact with their environments minus the quantum states
disintegrating, enabling the time crystal does not have kinetic energy in the
typical sense, although it could be utilized for quantum computing.
Having two states is essential as that is the basis for computation. In classical computer systems, the basic unit of information is little, which can take either 0 or 1 state, while in quantum computing, each "qubit" can be in more than a single place at the same time, giving way to much more computing power. This then could mean that time crystals can also be utilized as a building block for quantum devices working outside the laboratory.
Functioning as True Computational Devices
In such a state, the team's two-level system
would now be a "basic building block," explained Autti. This work is
presently very far away from a working quantum computer, although it opens up
interesting study routes.
If researchers can control the two-time crystal
system minus destroying their quantum states, they could develop larger time
crystal systems that function as true computational devices.