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Physics
Atomic and Condensed Matter
What's with 'virtual' phonons in BCS pairing?
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[QUOTE="ZapperZ, post: 4521094, member: 6230"] You are missing Quantum Field Theory. The idea here is that one is trying to describe the interaction between two objects. Naively, in QFT, this is accomplished via the exchange of a virtual bosonic "particle". In E&M, it is the exchange of virtual photon. In condensed matter physics, it can be any boson that is the equivalent of a 'vacuum excitation'. In the case of conventional superconductivity, this is the virtual phonons. In other cases, you can have an exchange of magnons, polarons, etc... Zz. [/QUOTE]
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Physics
Atomic and Condensed Matter
What's with 'virtual' phonons in BCS pairing?
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