Ho, A F and Coleman, P (1999) Breakdown of the chiral Luttinger liquid in one dimension. Physical Review Letters, 83 (7).
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We have developed a fermionic boot-strap method to solve a class of chiral one-dimensional fermion models. Using this scheme, we show that Luttinger liquid behavior in a gas of four interacting chiral Majorana fermions is highly sensitive to the velocity degeneracy. Upon changing the velocity of one chiral fermion, a sharp bound (or antibound) state splits off from the original Luttinger liquid continuum, cutting off the x-ray singularity to form a broad incoherent excitation with a lifetime that grows linearly with frequency.
This is a Submitted version This version's date is: 16/8/1999 This item is not peer reviewed
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