Ground state of the quantum symmetric finite size X X Z spin chain with anisotropy parameter Delta = 1/2 - INSPIRE

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Ground state of the quantum symmetric finite size X X Z spin chain with anisotropy parameter Delta = 1/2

V. Fridkin
(
- Kyoto U., RIMS
)
,
Yu. Stroganov
(
- Kyoto U., RIMS and
- Serpukhov, IHEP
)
,
D. Zagier
(
- Bonn, Max Planck Inst., Math.
)

Dec, 1999

6 pages

Published in:

J.Phys.A 33 (2000) L121-L125

e-Print:

hep-th/9912252 [hep-th]

DOI:

10.1088/0305-4470/33/13/101

View in:

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Abstract:

We find an analytic solution of the Bethe Ansatz equations (BAE) for the special case of a finite XXZ spin chain with free boundary conditions and with a complex surface field which provides for

U_q(sl(2))

symmetry of the Hamiltonian. More precisely, we find one nontrivial solution, corresponding to the ground state of the system with anisotropy parameter

\Delta = {1/2}

corresponding to

q^3 = -1

.

Note:

6 pages

References(14)

Figures(0)

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e-Print:
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