Details
| Original language | English |
|---|---|
| Pages (from-to) | 2116-2119 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 81 |
| Issue number | 10 |
| Publication status | Published - 7 Sept 1998 |
Abstract
An exactly soluble model describing a spin S = 1 antiferromagnetic chain doped with mobile S = 1/2 carriers is constructed. In its continuum limit the undoped state is described by three gapless Majorana fermions composing the SU(2) triplet. Doping adds a scalar charge field and a singlet Majorana fermion with different velocity. We argue that this mode survives when the Haldane gap is added.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical Review Letters, Vol. 81, No. 10, 07.09.1998, p. 2116-2119.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Doping of a spin-1 chain
T2 - An integrable model
AU - Frahm, Holger
AU - Pfannmüller, Markus P.
AU - Tsvelik, A. M.
PY - 1998/9/7
Y1 - 1998/9/7
N2 - An exactly soluble model describing a spin S = 1 antiferromagnetic chain doped with mobile S = 1/2 carriers is constructed. In its continuum limit the undoped state is described by three gapless Majorana fermions composing the SU(2) triplet. Doping adds a scalar charge field and a singlet Majorana fermion with different velocity. We argue that this mode survives when the Haldane gap is added.
AB - An exactly soluble model describing a spin S = 1 antiferromagnetic chain doped with mobile S = 1/2 carriers is constructed. In its continuum limit the undoped state is described by three gapless Majorana fermions composing the SU(2) triplet. Doping adds a scalar charge field and a singlet Majorana fermion with different velocity. We argue that this mode survives when the Haldane gap is added.
U2 - 10.1103/PhysRevLett.81.2116
DO - 10.1103/PhysRevLett.81.2116
M3 - Article
AN - SCOPUS:4243107627
VL - 81
SP - 2116
EP - 2119
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 10
ER -