A material for the transmission of quantum information

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POSTER: computer news   ||   A MATERIAL FOR THE TRANSMISSION OF QUANTUM INFORMATION	DATE:2013-05-10
The implementation of quantum computing will allow humanity to reach the performance of workstations, now out of reach even for supercomputers.  Professor of Physics and Electronics Veymin Chen (Weimin Chen) compares the performance of quantum systems with thoughts: modern computers are able think about only one problem, while quantum can solve several problems at once.  This is due to the fact that traditional PC operates with only two Bit values - "0" or "1", whereas a quantum qubit architecture manipulates suggesting multiple values in a given range.  Spin qubits their values vary depending on the angle of rotation of the electron around the core, This angle defines the information that is exchanged between the system components.  It is easy to calculate that if quantum system is able to identify only one of the 256 spin angles (a theoretically infinite number of them), one qubit will replace bytes, which will require up to 8 times longer to transmit.   One of the main problems of the quantum system is to provide a device of the spin polarization, that is, giving the electrons clearly specified angle of rotation and their subsequent transfer to another component of the system.  Previously this was only possible at very low temperatures, as in normal orientation  the spin was not stable.  Professor Chen, together with colleagues from the U.S. and Germany have found a solution to this issue.  In 2009, a team led by Professor Chen has already achieved significant results, creating a spin filter that transmits only the spins in specified angle, and reflect the rest.  Now scientists have picked up material that can conduct back at room temperature without distortion, this material was gallium arsenide nitride (gallium nitrogen arsenide).  This discovery is an important milestone on the way to the emergence of quantum computing systems, and the related qualitative leap in science and technology. Related Products :

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