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Quantum Field Theory: A Comprehensive Quiz on the Lamb Shift

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Multiple Choice

What is the Lamb shift?

  1. A small energy shift in the energy levels of hydrogen atoms due to quantum fluctuations of the electromagnetic field.
  2. A shift in the energy levels of atoms due to the interaction with external magnetic fields.
  3. A shift in the energy levels of atoms due to the interaction with external electric fields.
  4. A shift in the energy levels of atoms due to the interaction with other atoms.
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