In physics there are two categories: classical physics and quantum physics. In classical physics, an object such as a car or a ball, has a position and velocity. This is how we classically see our everyday world. In the quantum world, objects can also have the position and velocity, but not at the same time. Not merely because we do not know the position and velocity, but, both of these things did not exist simultaneously. But how do we know if they do not exist simultaneously? And where is the border of two worlds? Researchers have discovered a new way to answer this question.Light on quantum mechanics"Our goal is to use quantum mechanics in new ways. It is important for us to know if a system does not behave can have a classical explanation. On
this side, we first examine the light, "said Eran Kot, a PhD student in
the research team, Quantum Optics at the Niels Bohr Institute
University of Copenhagen.Based on a series of experiments in quantum optics lab, they examine the state of the light. In classical physics, light has electric and magnetic fields as well."What our study shows is the light can have a magnetic field and electric field, but not simultaneously. We then give a simple proof that the classical principle of breaking experiments. It
can be said that if we show that the quantum properties of light, and
we can expand this to other systems as well, "said Eran Kot.Classical mechanics and non-classicalThe
purpose of this study is to understand the world fundamentally, but
there are also practical challenges to exploit quantum mechanics in a
broader context. For
the light it is not surprising that it behaves quantum mechanically,
but other methods are also being developed to study other systems."We
are trying to develop quantum computers of the future and we therefore
need to understand the limits where something behaves quantum
mechanically and when he behaves mechanically classic," said professor
of quantum physics, Anders S Sorensen, explaining that quantum computing
should be composed of systems with non-classical properties .News source: University of Copenhagen.Reference journal:Eran Kot, Niels Grønbech-Jensen, Bo M. Nielsen, Jonas S. Neergaard-Nielsen, Eugene S. Polzik and Anders S. Sørensen. Breakdown of the Classical Description of a Local System. Phys. Rev. Lett., 2012 DOI: 10.1103/PhysRevLett.108.233601
