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The Landau theory of phase transitions: A mechanical analog |
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| Authors: | Rekha S Raorane Raghu Mahajan Praveen Pathak Vijay A Singh |
| Institution: | 1. Homi Bhabha Centre for Science Education (TIFR), V N Purav Marg, Mankhurd, Mumbai, 400 088, India 2. Department of Computer Science, Indian Institute of Technology, New Delhi, 110 016, India |
| Abstract: | The Landau theory of phase transitions occupies a centerpiece position in physics. We illustrate the theory by a pedagogical example at the pre-university level. In the example a bead of mass is threaded on a ring which is set rotating about a vertical diameter. The dynamics of the bead mimics key features of the Landau theory. |
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