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cond-mat.str-el2000
The Symmetries of Fermion Fluids at Low Dimensions
Philip W. Anderson, F. Duncan M. Haldane
We point out that the quasiparticle spectrum of the Landau Fermi liquid theory has an extra symmetry, local in momentum space, which is not generic to the Hamiltonian with in…
cond-mat.str-el2000
The Charge-Spin Separated Fermi Fluid in the High Tc Cuprates: A Quantum Protectorate
Philip W. Anderson
We find experimental evidence for spin-charge separation in all four relevant phases of the cuprates. It is argued that this phenomenon serves to protect the properties of the cupr…