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#mentalhealthawareness #IVPN_Network #IVPNFindsTalents #mentalhealth #wellness #covid Ahmed Aljedai Sali Emara Nahida Nayaz Ahmed Marlene Moukarzel BCNSP BCPS CPHQ
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#mentalhealthawareness #IVPN_Network #IVPNFindsTalents #mentalhealth #wellness #covid Ahmed Aljedai Sali Emara Nahida Nayaz Ahmed Marlene Moukarzel BCNSP BCPS CPHQ
The subject of Parisi’s original work was spin glass. This is a special type of metal alloy in which iron atoms, for example, are randomly mixed into a grid of copper atoms. Even though there are only a few iron atoms, they change the material’s magnetic properties in a radical and very puzzling manner. Each iron atom behaves like a small magnet, or spin, which is affected by the other iron atoms close to it. In an ordinary magnet, all the spins point in the same direction, but in a spin glass they are frustrated; some spin pairs want to point in the same direction and others in the opposite direction – so how do they find an optimal orientation?
Many physicists searched for a way to describe the mysterious spin glasses. One method they used was the replica trick, a mathematical technique in which many copies, replicas, of the system are processed at the same time.
In 1979, Parisi made a decisive breakthrough when he demonstrated how the replica trick could be ingeniously used to solve a spin glass problem. His method has been used in many disordered systems and become a cornerstone of the theory of complex systems.
Learn more: https://bit.ly/3iB0LP2