Chiral Y junction of quantum spin chains
作者： F. Buccheri , R. Egger , R. G. Pereira , F. B. Ramos
DOI: 10.1016/J.NUCLPHYSB.2019.03.005
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摘要: Abstract We study a Y junction of spin-1/2 Heisenberg chains with an interaction that breaks both time-reversal and chain exchange symmetries, but not their product nor SU(2) symmetry. The boundary phase diagram features stable disconnected fixed point at weak coupling three-channel Kondo strong coupling, separated by unstable chiral intermediate coupling. Using non-abelian bosonization conformal field theory, together density matrix renormalization group quantum Monte Carlo simulations, we characterize the signatures these low-energy points. In particular, address entropy, spin conductance, temperature dependence scalar chirality magnetic susceptibility boundary.
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sci-hub.se 参考文章(112)
Ian Affleck, Conformal-Field-Theory Approach to Quantum-Impurity Problems arXiv: Condensed Matter. pp. 117- 141 ,(2000) , 10.1007/978-3-662-04273-1_4
J. P. Goff, D. A. Tennant, S. E. Nagler, EXCHANGE MIXING AND SOLITON DYNAMICS IN THE QUANTUM SPIN CHAIN CSCOCL3 Physical Review B. ,vol. 52, pp. 15992- 16000 ,(1995) , 10.1103/PHYSREVB.52.15992
V.A. Fateev, A.B. Zamolodchikov, Operator Algebra and Correlation Functions in the Two-Dimensional Wess-Zumino SU(2) x SU(2) Chiral Model Sov.J.Nucl.Phys.. ,vol. 43, pp. 657- 664 ,(1986)
Sougata Mardanya, Amit Agarwal, Enhancement of tunneling density of states at a Y junction of spin-12Tomonaga–Luttinger liquid wires Physical Review B. ,vol. 92, pp. 045432- ,(2015) , 10.1103/PHYSREVB.92.045432
Han-Ning Dai, Bing Yang, Andreas Reingruber, Hui Sun, Xiao-Fan Xu, Yu-Ao Chen, Zhen-Sheng Yuan, Jian-Wei Pan, Four-body ring-exchange interactions and anyonic statistics within a minimal toric-code Hamiltonian Nature Physics. ,vol. 13, pp. 1195- 1200 ,(2017) , 10.1038/NPHYS4243
Manoranjan Kumar, Aslam Parvej, Simil Thomas, S. Ramasesha, Z. G. Soos, Efficient density matrix renormalization group algorithm to study Y junctions with integer and half-integer spin Physical Review B. ,vol. 93, pp. 075107- ,(2016) , 10.1103/PHYSREVB.93.075107
Bedoor Alkurtass, Abolfazl Bayat, Ian Affleck, Sougato Bose, Henrik Johannesson, Pasquale Sodano, Erik S. Sørensen, Karyn Le Hur, Entanglement structure of the two-channel Kondo model Physical Review B. ,vol. 93, pp. 081106- ,(2016) , 10.1103/PHYSREVB.93.081106
H. Bethe, Zur Theorie der Metalle European Physical Journal. ,vol. 71, pp. 205- 226 ,(1931) , 10.1007/BF01341708
R. Toskovic, R. van den Berg, A. Spinelli, I. S. Eliens, B. van den Toorn, B. Bryant, J.-S. Caux, A. F. Otte, None, Atomic spin-chain realization of a model for quantum criticality Nature Physics. ,vol. 12, pp. 656- 660 ,(2016) , 10.1038/NPHYS3722
Stephan Geprägs, Sebastian T. B. Goennenwein, Sebastian T. B. Goennenwein, Kathrin Ganzhorn, Rudolf Gross, Rudolf Gross, Stefan Klingler, Tobias Wimmer, Hans Huebl, Hans Huebl, Magnon-based logic in a multi-terminal YIG/Pt nanostructure Applied Physics Letters. ,vol. 109, pp. 022405- ,(2016) , 10.1063/1.4958893