| 11. | The proton and neutron are both baryons and both fermions.
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| 12. | The number of fermions, however, is conserved in this case.
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| 13. | In the fermion theories, the critical dimension was 10.
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| 14. | Most fermions will decay by a weak interaction over time.
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| 15. | In particular, spin 1 / 2 fermions proved difficult to handle.
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| 16. | Hence, the electrons and holes are called Dirac fermions.
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| 17. | BCS wave function is an example of squeezed coherent state of fermions.
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| 18. | Fractionally charged quasiparticles are neither bosons nor fermions and exhibit anyonic statistics.
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| 19. | Where ? is a Majorana fermion and A is the vector potential.
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| 20. | This requirement for fermions stems from the Pauli exclusion principle.
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