No Approximate Complex Fermion Coherent States

• Authors: TYC Tomáš; HAMILTON Brett; SANDERS Barry C.; OLIVER William
• Year of publication: 2007
• Type: Article in Periodical
• Magazine / Source: Foundations of Physics
• MU Faculty or unit: Faculty of Science
• Field: Theoretical physics
• Keywords: Fermion; coherent state; grassmann variables; coherence
• Description: The paper addresses the question of existence of coherent states of fermions (apart from those defined via Grassamnn variables) analogous to bosonic coherent states. We use four different definitions of coherent states and show that no fermion states satisfy them. Moreover, properties of fermionic correlation functions are discussed in detail.

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