The Pair Condensate Wavefunction

There is a widely held view [1-17] that the pair condensate wavefunction has a dominant dx ya symmetry. Recently, we presented a group theoretical analysis [7] of the pair condensate state function in real space for superconducting cuprates and studied the implications of the dxa ya pairing symmetry for Fermions on a 

1 The Cu atom is in an almost D4j, environment but there are small puckcrings of the cuprate layer and external ions which lower the symmetry to C4V 

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