For example, a classical electromagnetic field can be viewed as a coherent state of photons.
— Quantum Many-Particle Systems, J W Negele and H Orland, Addison-Wesley, 1988
2009.12.15 Tuesday ACHK
For example, a classical electromagnetic field can be viewed as a coherent state of photons.
— Quantum Many-Particle Systems, J W Negele and H Orland, Addison-Wesley, 1988
2009.12.15 Tuesday ACHK
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* There are too many ideas and things and people. Too many directions to go. I was starting to believe the reason it matters to care passionately about something is that it whittles the world down to a more managable size.
* Most people yearn for something exceptional, something so inspiring that they’d want to risk everything for that passion, but few would act on it. It was very powerful and intoxicating to be around someone so alive.
— Susan Orlean
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2009.12.15 Tuesday