Exact solution of an integrable quantum spin chain with competing interactions

2021 ◽  
Author(s):  
Jian Wang ◽  
Yi Qiao ◽  
Junpeng Cao ◽  
Wen-Li Yang
Keyword(s):  
Exact Solution ◽  
Spin Chain ◽  
Quantum Spin ◽  
Quantum Spin Chain ◽  
Competing Interactions ◽  
Integrable Quantum

DISORDER LINE IN A QUANTUM SPIN CHAIN WITH COMPETING INTERACTIONS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1409-C8-1410
Author(s):  
I. Harada ◽  
T. Kimura ◽  
T. Tonegawa
Keyword(s):  
Spin Chain ◽  
Quantum Spin ◽  
Quantum Spin Chain ◽  
Competing Interactions

Measuring the excitations in a new S  =  1/2 quantum spin chain material with competing interactions

2018 ◽  
Vol 30 (21) ◽  
pp. 215602
Author(s):  
K C Rule ◽  
R A Mole ◽  
J Zanardo ◽  
A Krause-Heuer ◽  
T Darwish ◽  
...  
Keyword(s):  
Spin Chain ◽  
Quantum Spin ◽  
Quantum Spin Chain ◽  
Competing Interactions

scholarly journals T − W relation and free energy of the Heisenberg chain at a finite temperature

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Pengcheng Lu ◽  
Yi Qiao ◽  
Junpeng Cao ◽  
Wen-Li Yang ◽  
Kang jie Shi ◽  
...  
Keyword(s):  
Free Energy ◽  
Spin Chain ◽  
Quantum Spin ◽  
Heisenberg Chain ◽  
Quantum Spin Chain ◽  
Heisenberg Spin ◽  
Heisenberg Spin Chain ◽  
Lattice Quantum ◽  
Quantum Integrable Models ◽  
Invariant Quantum

Abstract A new nonlinear integral equation (NLIE) describing the thermodynamics of the Heisenberg spin chain is derived based on the t − W relation of the quantum transfer matrices. The free energy of the system in a magnetic field is thus obtained by solving the NLIE. This method can be generalized to other lattice quantum integrable models. Taking the SU(3)-invariant quantum spin chain as an example, we construct the corre- sponding NLIEs and compute the free energy. The present results coincide exactly with those obtained via other methods previously.

scholarly journals Quantum spin chain dissipative mean-field dynamics

2018 ◽  
Vol 51 (32) ◽  
pp. 325001 ◽  
Author(s):  
F Benatti ◽  
F Carollo ◽  
R Floreanini ◽  
H Narnhofer
Keyword(s):  
Spin Chain ◽  
Mean Field ◽  
Quantum Spin ◽  
Quantum Spin Chain
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