Einstein as armchair detective: The case of stimulated radiation |
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Authors: | Vasant Natarajan |
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Institution: | 1. Department of Physics, Indian Institute of Science, 560 012, Bangalore, India
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Abstract: | Einstein was in many ways like a detective on a mystery trail, though in his case he was on the trail of nature’s mysteries and not some murder mystery! And like all good detectives he had a style. It consisted of taking facts that he knew were correct and forcing nature into a situation that would contradict this established truth. In this process she would be forced to reveal some new truths. Einstein’s 1917 paper on the quantum theory of radiation is a classic example of this style that enabled him to predict the existence of stimulated radiation starting from an analysis of thermodynamic equilibrium between matter and radiation. |
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